diff --git a/tests/test_alloc.toml b/tests/test_alloc.toml
index 6927c0ce..363dbde8 100644
--- a/tests/test_alloc.toml
+++ b/tests/test_alloc.toml
@@ -806,722 +806,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-
-## allocator tests
-## note for these to work there are a number constraints on the device geometry
-#if = 'BLOCK_CYCLES == -1'
-#
-## parallel allocation test
-#[cases.test_alloc_parallel]
-#defines.FILES = 3
-#defines.SIZE = '(((BLOCK_SIZE-8)*(BLOCK_COUNT-6)) / FILES)'
-#code = '''
-#    const char *names[] = {"bacon", "eggs", "pancakes"};
-#    lfs_file_t files[FILES];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "breakfast") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int n = 0; n < FILES; n++) {
-#        char path[1024];
-#        sprintf(path, "breakfast/%s", names[n]);
-#        lfs_file_open(&lfs, &files[n], path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    }
-#    for (int n = 0; n < FILES; n++) {
-#        size_t size = strlen(names[n]);
-#        for (lfs_size_t i = 0; i < SIZE; i += size) {
-#            lfs_file_write(&lfs, &files[n], names[n], size) => size;
-#        }
-#    }
-#    for (int n = 0; n < FILES; n++) {
-#        lfs_file_close(&lfs, &files[n]) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int n = 0; n < FILES; n++) {
-#        char path[1024];
-#        sprintf(path, "breakfast/%s", names[n]);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#        size_t size = strlen(names[n]);
-#        for (lfs_size_t i = 0; i < SIZE; i += size) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            assert(memcmp(buffer, names[n], size) == 0);
-#        }
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## serial allocation test
-#[cases.test_alloc_serial]
-#defines.FILES = 3
-#defines.SIZE = '(((BLOCK_SIZE-8)*(BLOCK_COUNT-6)) / FILES)'
-#code = '''
-#    const char *names[] = {"bacon", "eggs", "pancakes"};
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "breakfast") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    for (int n = 0; n < FILES; n++) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        char path[1024];
-#        sprintf(path, "breakfast/%s", names[n]);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#        size_t size = strlen(names[n]);
-#        uint8_t buffer[1024];
-#        memcpy(buffer, names[n], size);
-#        for (int i = 0; i < SIZE; i += size) {
-#            lfs_file_write(&lfs, &file, buffer, size) => size;
-#        }
-#        lfs_file_close(&lfs, &file) => 0;
-#        lfs_unmount(&lfs) => 0;
-#    }
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int n = 0; n < FILES; n++) {
-#        char path[1024];
-#        sprintf(path, "breakfast/%s", names[n]);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#        size_t size = strlen(names[n]);
-#        for (int i = 0; i < SIZE; i += size) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            assert(memcmp(buffer, names[n], size) == 0);
-#        }
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## parallel allocation reuse test
-#[cases.test_alloc_parallel_reuse]
-#defines.FILES = 3
-#defines.SIZE = '(((BLOCK_SIZE-8)*(BLOCK_COUNT-6)) / FILES)'
-#defines.CYCLES = [1, 10]
-#code = '''
-#    const char *names[] = {"bacon", "eggs", "pancakes"};
-#    lfs_file_t files[FILES];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    for (int c = 0; c < CYCLES; c++) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        lfs_mkdir(&lfs, "breakfast") => 0;
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int n = 0; n < FILES; n++) {
-#            char path[1024];
-#            sprintf(path, "breakfast/%s", names[n]);
-#            lfs_file_open(&lfs, &files[n], path,
-#                    LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#        }
-#        for (int n = 0; n < FILES; n++) {
-#            size_t size = strlen(names[n]);
-#            for (int i = 0; i < SIZE; i += size) {
-#                lfs_file_write(&lfs, &files[n], names[n], size) => size;
-#            }
-#        }
-#        for (int n = 0; n < FILES; n++) {
-#            lfs_file_close(&lfs, &files[n]) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int n = 0; n < FILES; n++) {
-#            char path[1024];
-#            sprintf(path, "breakfast/%s", names[n]);
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#            size_t size = strlen(names[n]);
-#            for (int i = 0; i < SIZE; i += size) {
-#                uint8_t buffer[1024];
-#                lfs_file_read(&lfs, &file, buffer, size) => size;
-#                assert(memcmp(buffer, names[n], size) == 0);
-#            }
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int n = 0; n < FILES; n++) {
-#            char path[1024];
-#            sprintf(path, "breakfast/%s", names[n]);
-#            lfs_remove(&lfs, path) => 0;
-#        }
-#        lfs_remove(&lfs, "breakfast") => 0;
-#        lfs_unmount(&lfs) => 0;
-#    }
-#'''
-#
-## serial allocation reuse test
-#[cases.test_alloc_serial_reuse]
-#defines.FILES = 3
-#defines.SIZE = '(((BLOCK_SIZE-8)*(BLOCK_COUNT-6)) / FILES)'
-#defines.CYCLES = [1, 10]
-#code = '''
-#    const char *names[] = {"bacon", "eggs", "pancakes"};
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    for (int c = 0; c < CYCLES; c++) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        lfs_mkdir(&lfs, "breakfast") => 0;
-#        lfs_unmount(&lfs) => 0;
-#
-#        for (int n = 0; n < FILES; n++) {
-#            lfs_mount(&lfs, cfg) => 0;
-#            char path[1024];
-#            sprintf(path, "breakfast/%s", names[n]);
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path,
-#                    LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#            size_t size = strlen(names[n]);
-#            uint8_t buffer[1024];
-#            memcpy(buffer, names[n], size);
-#            for (int i = 0; i < SIZE; i += size) {
-#                lfs_file_write(&lfs, &file, buffer, size) => size;
-#            }
-#            lfs_file_close(&lfs, &file) => 0;
-#            lfs_unmount(&lfs) => 0;
-#        }
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int n = 0; n < FILES; n++) {
-#            char path[1024];
-#            sprintf(path, "breakfast/%s", names[n]);
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#            size_t size = strlen(names[n]);
-#            for (int i = 0; i < SIZE; i += size) {
-#                uint8_t buffer[1024];
-#                lfs_file_read(&lfs, &file, buffer, size) => size;
-#                assert(memcmp(buffer, names[n], size) == 0);
-#            }
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int n = 0; n < FILES; n++) {
-#            char path[1024];
-#            sprintf(path, "breakfast/%s", names[n]);
-#            lfs_remove(&lfs, path) => 0;
-#        }
-#        lfs_remove(&lfs, "breakfast") => 0;
-#        lfs_unmount(&lfs) => 0;
-#    }
-#'''
-#
-## exhaustion test
-#[cases.test_alloc_exhaustion]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    size_t size = strlen("exhaustion");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "exhaustion", size);
-#    lfs_file_write(&lfs, &file, buffer, size) => size;
-#    lfs_file_sync(&lfs, &file) => 0;
-#
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    lfs_ssize_t res;
-#    while (true) {
-#        res = lfs_file_write(&lfs, &file, buffer, size);
-#        if (res < 0) {
-#            break;
-#        }
-#
-#        res => size;
-#    }
-#    res => LFS_ERR_NOSPC;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_RDONLY);
-#    size = strlen("exhaustion");
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "exhaustion", size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## exhaustion wraparound test
-#[cases.test_alloc_exhaustion_wraparound]
-#defines.SIZE = '(((BLOCK_SIZE-8)*(BLOCK_COUNT-4)) / 3)'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "padding", LFS_O_WRONLY | LFS_O_CREAT);
-#    size_t size = strlen("buffering");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "buffering", size);
-#    for (int i = 0; i < SIZE; i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_remove(&lfs, "padding") => 0;
-#
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    size = strlen("exhaustion");
-#    memcpy(buffer, "exhaustion", size);
-#    lfs_file_write(&lfs, &file, buffer, size) => size;
-#    lfs_file_sync(&lfs, &file) => 0;
-#
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    lfs_ssize_t res;
-#    while (true) {
-#        res = lfs_file_write(&lfs, &file, buffer, size);
-#        if (res < 0) {
-#            break;
-#        }
-#
-#        res => size;
-#    }
-#    res => LFS_ERR_NOSPC;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_RDONLY);
-#    size = strlen("exhaustion");
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "exhaustion", size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_remove(&lfs, "exhaustion") => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## dir exhaustion test
-#[cases.test_alloc_dir_exhaustion]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // find out max file size
-#    lfs_mkdir(&lfs, "exhaustiondir") => 0;
-#    size_t size = strlen("blahblahblahblah");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "blahblahblahblah", size);
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    int count = 0;
-#    int err;
-#    while (true) {
-#        err = lfs_file_write(&lfs, &file, buffer, size);
-#        if (err < 0) {
-#            break;
-#        }
-#
-#        count += 1;
-#    }
-#    err => LFS_ERR_NOSPC;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_remove(&lfs, "exhaustion") => 0;
-#    lfs_remove(&lfs, "exhaustiondir") => 0;
-#
-#    // see if dir fits with max file size
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    for (int i = 0; i < count; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_mkdir(&lfs, "exhaustiondir") => 0;
-#    lfs_remove(&lfs, "exhaustiondir") => 0;
-#    lfs_remove(&lfs, "exhaustion") => 0;
-#
-#    // see if dir fits with > max file size
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    for (int i = 0; i < count+1; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_mkdir(&lfs, "exhaustiondir") => LFS_ERR_NOSPC;
-#
-#    lfs_remove(&lfs, "exhaustion") => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## what if we have a bad block during an allocation scan?
-#[cases.test_alloc_bad_blocks]
-#in = "lfs.c"
-#defines.ERASE_CYCLES = 0xffffffff
-#defines.BADBLOCK_BEHAVIOR = 'LFS_EMUBD_BADBLOCK_READERROR'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    // first fill to exhaustion to find available space
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "pacman", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    uint8_t buffer[1024];
-#    strcpy((char*)buffer, "waka");
-#    size_t size = strlen("waka");
-#    lfs_size_t filesize = 0;
-#    while (true) {
-#        lfs_ssize_t res = lfs_file_write(&lfs, &file, buffer, size);
-#        assert(res == (lfs_ssize_t)size || res == LFS_ERR_NOSPC);
-#        if (res == LFS_ERR_NOSPC) {
-#            break;
-#        }
-#        filesize += size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    // now fill all but a couple of blocks of the filesystem with data
-#    filesize -= 3*BLOCK_SIZE;
-#    lfs_file_open(&lfs, &file, "pacman", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    strcpy((char*)buffer, "waka");
-#    size = strlen("waka");
-#    for (lfs_size_t i = 0; i < filesize/size; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    // also save head of file so we can error during lookahead scan
-#    lfs_block_t fileblock = file.ctz.head;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // remount to force an alloc scan
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // but mark the head of our file as a "bad block", this is force our
-#    // scan to bail early
-#    lfs_emubd_setwear(cfg, fileblock, 0xffffffff) => 0;
-#    lfs_file_open(&lfs, &file, "ghost", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    strcpy((char*)buffer, "chomp");
-#    size = strlen("chomp");
-#    while (true) {
-#        lfs_ssize_t res = lfs_file_write(&lfs, &file, buffer, size);
-#        assert(res == (lfs_ssize_t)size || res == LFS_ERR_CORRUPT);
-#        if (res == LFS_ERR_CORRUPT) {
-#            break;
-#        }
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // now reverse the "bad block" and try to write the file again until we
-#    // run out of space
-#    lfs_emubd_setwear(cfg, fileblock, 0) => 0;
-#    lfs_file_open(&lfs, &file, "ghost", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    strcpy((char*)buffer, "chomp");
-#    size = strlen("chomp");
-#    while (true) {
-#        lfs_ssize_t res = lfs_file_write(&lfs, &file, buffer, size);
-#        assert(res == (lfs_ssize_t)size || res == LFS_ERR_NOSPC);
-#        if (res == LFS_ERR_NOSPC) {
-#            break;
-#        }
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#
-#    // check that the disk isn't hurt
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "pacman", LFS_O_RDONLY) => 0;
-#    strcpy((char*)buffer, "waka");
-#    size = strlen("waka");
-#    for (lfs_size_t i = 0; i < filesize/size; i++) {
-#        uint8_t rbuffer[4];
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#
-## Below, I don't like these tests. They're fragile and depend _heavily_
-## on the geometry of the block device. But they are valuable. Eventually they
-## should be removed and replaced with generalized tests.
-#
-## chained dir exhaustion test
-#[cases.test_alloc_chained_dir_exhaustion]
-#if = 'BLOCK_SIZE == 512'
-#defines.BLOCK_COUNT = 1024
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // find out max file size
-#    lfs_mkdir(&lfs, "exhaustiondir") => 0;
-#    for (int i = 0; i < 10; i++) {
-#        char path[1024];
-#        sprintf(path, "dirwithanexhaustivelylongnameforpadding%d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    size_t size = strlen("blahblahblahblah");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "blahblahblahblah", size);
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    int count = 0;
-#    int err;
-#    while (true) {
-#        err = lfs_file_write(&lfs, &file, buffer, size);
-#        if (err < 0) {
-#            break;
-#        }
-#
-#        count += 1;
-#    }
-#    err => LFS_ERR_NOSPC;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_remove(&lfs, "exhaustion") => 0;
-#    lfs_remove(&lfs, "exhaustiondir") => 0;
-#    for (int i = 0; i < 10; i++) {
-#        char path[1024];
-#        sprintf(path, "dirwithanexhaustivelylongnameforpadding%d", i);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#
-#    // see that chained dir fails
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    for (int i = 0; i < count+1; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_sync(&lfs, &file) => 0;
-#
-#    for (int i = 0; i < 10; i++) {
-#        char path[1024];
-#        sprintf(path, "dirwithanexhaustivelylongnameforpadding%d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#
-#    lfs_mkdir(&lfs, "exhaustiondir") => LFS_ERR_NOSPC;
-#
-#    // shorten file to try a second chained dir
-#    while (true) {
-#        err = lfs_mkdir(&lfs, "exhaustiondir");
-#        if (err != LFS_ERR_NOSPC) {
-#            break;
-#        }
-#
-#        lfs_ssize_t filesize = lfs_file_size(&lfs, &file);
-#        filesize > 0 => true;
-#
-#        lfs_file_truncate(&lfs, &file, filesize - size) => 0;
-#        lfs_file_sync(&lfs, &file) => 0;
-#    }
-#    err => 0;
-#
-#    lfs_mkdir(&lfs, "exhaustiondir2") => LFS_ERR_NOSPC;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## split dir test
-#[cases.test_alloc_split_dir]
-#if = 'BLOCK_SIZE == 512'
-#defines.BLOCK_COUNT = 1024
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // create one block hole for half a directory
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "bump", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    for (lfs_size_t i = 0; i < cfg->block_size; i += 2) {
-#        uint8_t buffer[1024];
-#        memcpy(&buffer[i], "hi", 2);
-#    }
-#    uint8_t buffer[1024];
-#    lfs_file_write(&lfs, &file, buffer, cfg->block_size) => cfg->block_size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "exhaustion", LFS_O_WRONLY | LFS_O_CREAT);
-#    size_t size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < (cfg->block_count-4)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // remount to force reset of lookahead
-#    lfs_unmount(&lfs) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // open hole
-#    lfs_remove(&lfs, "bump") => 0;
-#
-#    lfs_mkdir(&lfs, "splitdir") => 0;
-#    lfs_file_open(&lfs, &file, "splitdir/bump",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    for (lfs_size_t i = 0; i < cfg->block_size; i += 2) {
-#        memcpy(&buffer[i], "hi", 2);
-#    }
-#    lfs_file_write(&lfs, &file, buffer, 2*cfg->block_size) => LFS_ERR_NOSPC;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## outdated lookahead test
-#[cases.test_alloc_outdated_lookahead]
-#if = 'BLOCK_SIZE == 512'
-#defines.BLOCK_COUNT = 1024
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // fill completely with two files
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "exhaustion1",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    size_t size = strlen("blahblahblahblah");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2)/2)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "exhaustion2",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2+1)/2)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // remount to force reset of lookahead
-#    lfs_unmount(&lfs) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // rewrite one file
-#    lfs_file_open(&lfs, &file, "exhaustion1",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_sync(&lfs, &file) => 0;
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2)/2)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // rewrite second file, this requires lookahead does not
-#    // use old population
-#    lfs_file_open(&lfs, &file, "exhaustion2",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_sync(&lfs, &file) => 0;
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2+1)/2)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## outdated lookahead and split dir test
-#[cases.test_alloc_outdated_lookahead_split_dir]
-#if = 'BLOCK_SIZE == 512'
-#defines.BLOCK_COUNT = 1024
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // fill completely with two files
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "exhaustion1",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    size_t size = strlen("blahblahblahblah");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2)/2)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "exhaustion2",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2+1)/2)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // remount to force reset of lookahead
-#    lfs_unmount(&lfs) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // rewrite one file with a hole of one block
-#    lfs_file_open(&lfs, &file, "exhaustion1",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_sync(&lfs, &file) => 0;
-#    size = strlen("blahblahblahblah");
-#    memcpy(buffer, "blahblahblahblah", size);
-#    for (lfs_size_t i = 0;
-#            i < ((cfg->block_count-2)/2 - 1)*(cfg->block_size-8);
-#            i += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // try to allocate a directory, should fail!
-#    lfs_mkdir(&lfs, "split") => LFS_ERR_NOSPC;
-#
-#    // file should not fail
-#    lfs_file_open(&lfs, &file, "notasplit",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "hi", 2) => 2;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_attrs.toml b/tests/test_attrs.toml
index c4623358..95f19c77 100644
--- a/tests/test_attrs.toml
+++ b/tests/test_attrs.toml
@@ -5053,329 +5053,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-
-
-
-
-
-
-
-
-
-#[cases.test_attrs_get_set]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "hello") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "hello", strlen("hello")) => strlen("hello");
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    uint8_t buffer[1024];
-#    memset(buffer, 0, sizeof(buffer));
-#    lfs_setattr(&lfs, "hello", 'A', "aaaa",   4) => 0;
-#    lfs_setattr(&lfs, "hello", 'B', "bbbbbb", 6) => 0;
-#    lfs_setattr(&lfs, "hello", 'C', "ccccc",  5) => 0;
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  6) => 6;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",   4) => 0;
-#    memcmp(buffer+4,  "bbbbbb", 6) => 0;
-#    memcmp(buffer+10, "ccccc",  5) => 0;
-#
-#    lfs_setattr(&lfs, "hello", 'B', "", 0) => 0;
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  6) => 0;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",         4) => 0;
-#    memcmp(buffer+4,  "\0\0\0\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",        5) => 0;
-#
-#    lfs_removeattr(&lfs, "hello", 'B') => 0;
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  6) => LFS_ERR_NOATTR;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",         4) => 0;
-#    memcmp(buffer+4,  "\0\0\0\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",        5) => 0;
-#
-#    lfs_setattr(&lfs, "hello", 'B', "dddddd", 6) => 0;
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  6) => 6;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",   4) => 0;
-#    memcmp(buffer+4,  "dddddd", 6) => 0;
-#    memcmp(buffer+10, "ccccc",  5) => 0;
-#
-#    lfs_setattr(&lfs, "hello", 'B', "eee", 3) => 0;
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  6) => 3;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",      4) => 0;
-#    memcmp(buffer+4,  "eee\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",     5) => 0;
-#
-#    lfs_setattr(&lfs, "hello", 'A', buffer, LFS_ATTR_MAX+1) => LFS_ERR_NOSPC;
-#    lfs_setattr(&lfs, "hello", 'B', "fffffffff", 9) => 0;
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  6) => 9;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+10, 5) => 5;
-#
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    memset(buffer, 0, sizeof(buffer));
-#    lfs_getattr(&lfs, "hello", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "hello", 'B', buffer+4,  9) => 9;
-#    lfs_getattr(&lfs, "hello", 'C', buffer+13, 5) => 5;
-#    memcmp(buffer,    "aaaa",      4) => 0;
-#    memcmp(buffer+4,  "fffffffff", 9) => 0;
-#    memcmp(buffer+13, "ccccc",     5) => 0;
-#
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, sizeof(buffer)) => strlen("hello");
-#    memcmp(buffer, "hello", strlen("hello")) => 0;
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_attrs_get_set_root]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "hello") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "hello", strlen("hello")) => strlen("hello");
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    uint8_t buffer[1024];
-#    memset(buffer, 0, sizeof(buffer));
-#    lfs_setattr(&lfs, "/", 'A', "aaaa",   4) => 0;
-#    lfs_setattr(&lfs, "/", 'B', "bbbbbb", 6) => 0;
-#    lfs_setattr(&lfs, "/", 'C', "ccccc",  5) => 0;
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  6) => 6;
-#    lfs_getattr(&lfs, "/", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",   4) => 0;
-#    memcmp(buffer+4,  "bbbbbb", 6) => 0;
-#    memcmp(buffer+10, "ccccc",  5) => 0;
-#
-#    lfs_setattr(&lfs, "/", 'B', "", 0) => 0;
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  6) => 0;
-#    lfs_getattr(&lfs, "/", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",         4) => 0;
-#    memcmp(buffer+4,  "\0\0\0\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",        5) => 0;
-#
-#    lfs_removeattr(&lfs, "/", 'B') => 0;
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  6) => LFS_ERR_NOATTR;
-#    lfs_getattr(&lfs, "/", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",         4) => 0;
-#    memcmp(buffer+4,  "\0\0\0\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",        5) => 0;
-#
-#    lfs_setattr(&lfs, "/", 'B', "dddddd", 6) => 0;
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  6) => 6;
-#    lfs_getattr(&lfs, "/", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",   4) => 0;
-#    memcmp(buffer+4,  "dddddd", 6) => 0;
-#    memcmp(buffer+10, "ccccc",  5) => 0;
-#
-#    lfs_setattr(&lfs, "/", 'B', "eee", 3) => 0;
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  6) => 3;
-#    lfs_getattr(&lfs, "/", 'C', buffer+10, 5) => 5;
-#    memcmp(buffer,    "aaaa",      4) => 0;
-#    memcmp(buffer+4,  "eee\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",     5) => 0;
-#
-#    lfs_setattr(&lfs, "/", 'A', buffer, LFS_ATTR_MAX+1) => LFS_ERR_NOSPC;
-#    lfs_setattr(&lfs, "/", 'B', "fffffffff", 9) => 0;
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  6) => 9;
-#    lfs_getattr(&lfs, "/", 'C', buffer+10, 5) => 5;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    memset(buffer, 0, sizeof(buffer));
-#    lfs_getattr(&lfs, "/", 'A', buffer,    4) => 4;
-#    lfs_getattr(&lfs, "/", 'B', buffer+4,  9) => 9;
-#    lfs_getattr(&lfs, "/", 'C', buffer+13, 5) => 5;
-#    memcmp(buffer,    "aaaa",      4) => 0;
-#    memcmp(buffer+4,  "fffffffff", 9) => 0;
-#    memcmp(buffer+13, "ccccc",     5) => 0;
-#
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, sizeof(buffer)) => strlen("hello");
-#    memcmp(buffer, "hello", strlen("hello")) => 0;
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_attrs_get_set_file]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "hello") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "hello", strlen("hello")) => strlen("hello");
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    uint8_t buffer[1024];
-#    memset(buffer, 0, sizeof(buffer));
-#    struct lfs_attr attrs1[] = {
-#        {'A', buffer,    4},
-#        {'B', buffer+4,  6},
-#        {'C', buffer+10, 5},
-#    };
-#    struct lfs_file_config cfg1 = {.attrs=attrs1, .attr_count=3};
-#
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_WRONLY, &cfg1) => 0;
-#    memcpy(buffer,    "aaaa",   4);
-#    memcpy(buffer+4,  "bbbbbb", 6);
-#    memcpy(buffer+10, "ccccc",  5);
-#    lfs_file_close(&lfs, &file) => 0;
-#    memset(buffer, 0, 15);
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDONLY, &cfg1) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    memcmp(buffer,    "aaaa",   4) => 0;
-#    memcmp(buffer+4,  "bbbbbb", 6) => 0;
-#    memcmp(buffer+10, "ccccc",  5) => 0;
-#
-#    attrs1[1].size = 0;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_WRONLY, &cfg1) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    memset(buffer, 0, 15);
-#    attrs1[1].size = 6;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDONLY, &cfg1) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    memcmp(buffer,    "aaaa",         4) => 0;
-#    memcmp(buffer+4,  "\0\0\0\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",        5) => 0;
-#
-#    attrs1[1].size = 6;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_WRONLY, &cfg1) => 0;
-#    memcpy(buffer+4,  "dddddd", 6);
-#    lfs_file_close(&lfs, &file) => 0;
-#    memset(buffer, 0, 15);
-#    attrs1[1].size = 6;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDONLY, &cfg1) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    memcmp(buffer,    "aaaa",   4) => 0;
-#    memcmp(buffer+4,  "dddddd", 6) => 0;
-#    memcmp(buffer+10, "ccccc",  5) => 0;
-#
-#    attrs1[1].size = 3;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_WRONLY, &cfg1) => 0;
-#    memcpy(buffer+4,  "eee", 3);
-#    lfs_file_close(&lfs, &file) => 0;
-#    memset(buffer, 0, 15);
-#    attrs1[1].size = 6;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDONLY, &cfg1) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    memcmp(buffer,    "aaaa",      4) => 0;
-#    memcmp(buffer+4,  "eee\0\0\0", 6) => 0;
-#    memcmp(buffer+10, "ccccc",     5) => 0;
-#
-#    attrs1[0].size = LFS_ATTR_MAX+1;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_WRONLY, &cfg1)
-#        => LFS_ERR_NOSPC;
-#
-#    struct lfs_attr attrs2[] = {
-#        {'A', buffer,    4},
-#        {'B', buffer+4,  9},
-#        {'C', buffer+13, 5},
-#    };
-#    struct lfs_file_config cfg2 = {.attrs=attrs2, .attr_count=3};
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDWR, &cfg2) => 0;
-#    memcpy(buffer+4,  "fffffffff", 9);
-#    lfs_file_close(&lfs, &file) => 0;
-#    attrs1[0].size = 4;
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDONLY, &cfg1) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    memset(buffer, 0, sizeof(buffer));
-#    struct lfs_attr attrs3[] = {
-#        {'A', buffer,    4},
-#        {'B', buffer+4,  9},
-#        {'C', buffer+13, 5},
-#    };
-#    struct lfs_file_config cfg3 = {.attrs=attrs3, .attr_count=3};
-#
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_RDONLY, &cfg3) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    memcmp(buffer,    "aaaa",      4) => 0;
-#    memcmp(buffer+4,  "fffffffff", 9) => 0;
-#    memcmp(buffer+13, "ccccc",     5) => 0;
-#
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, sizeof(buffer)) => strlen("hello");
-#    memcmp(buffer, "hello", strlen("hello")) => 0;
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_attrs_deferred_file]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "hello") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "hello/hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "hello", strlen("hello")) => strlen("hello");
-#    lfs_file_close(&lfs, &file);
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_setattr(&lfs, "hello/hello", 'B', "fffffffff",  9) => 0;
-#    lfs_setattr(&lfs, "hello/hello", 'C', "ccccc",      5) => 0;
-#
-#    uint8_t buffer[1024];
-#    memset(buffer, 0, sizeof(buffer));
-#    struct lfs_attr attrs1[] = {
-#        {'B', "gggg", 4},
-#        {'C', "",     0},
-#        {'D', "hhhh", 4},
-#    };
-#    struct lfs_file_config cfg1 = {.attrs=attrs1, .attr_count=3};
-#
-#    lfs_file_opencfg(&lfs, &file, "hello/hello", LFS_O_WRONLY, &cfg1) => 0;
-#
-#    lfs_getattr(&lfs, "hello/hello", 'B', buffer,    9) => 9;
-#    lfs_getattr(&lfs, "hello/hello", 'C', buffer+9,  9) => 5;
-#    lfs_getattr(&lfs, "hello/hello", 'D', buffer+18, 9) => LFS_ERR_NOATTR;
-#    memcmp(buffer,    "fffffffff",          9) => 0;
-#    memcmp(buffer+9,  "ccccc\0\0\0\0",      9) => 0;
-#    memcmp(buffer+18, "\0\0\0\0\0\0\0\0\0", 9) => 0;
-#
-#    lfs_file_sync(&lfs, &file) => 0;
-#    lfs_getattr(&lfs, "hello/hello", 'B', buffer,    9) => 4;
-#    lfs_getattr(&lfs, "hello/hello", 'C', buffer+9,  9) => 0;
-#    lfs_getattr(&lfs, "hello/hello", 'D', buffer+18, 9) => 4;
-#    memcmp(buffer,    "gggg\0\0\0\0\0",     9) => 0;
-#    memcmp(buffer+9,  "\0\0\0\0\0\0\0\0\0", 9) => 0;
-#    memcmp(buffer+18, "hhhh\0\0\0\0\0",     9) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_badblocks.toml b/tests/test_badblocks.toml
index 01f23a08..2a2c8036 100644
--- a/tests/test_badblocks.toml
+++ b/tests/test_badblocks.toml
@@ -5954,288 +5954,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-## bad blocks with block cycles should be tested in test_relocations
-#if = '(int32_t)BLOCK_CYCLES == -1'
-#
-#[cases.test_badblocks_single]
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.ERASE_CYCLES = 0xffffffff
-#defines.ERASE_VALUE = [0x00, 0xff, -1]
-#defines.BADBLOCK_BEHAVIOR = [
-#    'LFS_EMUBD_BADBLOCK_PROGERROR',
-#    'LFS_EMUBD_BADBLOCK_ERASEERROR',
-#    'LFS_EMUBD_BADBLOCK_READERROR',
-#    'LFS_EMUBD_BADBLOCK_PROGNOOP',
-#    'LFS_EMUBD_BADBLOCK_ERASENOOP',
-#]
-#defines.NAMEMULT = 64
-#defines.FILEMULT = 1
-#code = '''
-#    for (lfs_block_t badblock = 2; badblock < BLOCK_COUNT; badblock++) {
-#        lfs_emubd_setwear(cfg, badblock-1, 0) => 0;
-#        lfs_emubd_setwear(cfg, badblock, 0xffffffff) => 0;
-#
-#        lfs_t lfs;
-#        lfs_format(&lfs, cfg) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int i = 1; i < 10; i++) {
-#            uint8_t buffer[1024];
-#            for (int j = 0; j < NAMEMULT; j++) {
-#                buffer[j] = '0'+i;
-#            }
-#            buffer[NAMEMULT] = '\0';
-#            lfs_mkdir(&lfs, (char*)buffer) => 0;
-#
-#            buffer[NAMEMULT] = '/';
-#            for (int j = 0; j < NAMEMULT; j++) {
-#                buffer[j+NAMEMULT+1] = '0'+i;
-#            }
-#            buffer[2*NAMEMULT+1] = '\0';
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, (char*)buffer,
-#                    LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#            
-#            lfs_size_t size = NAMEMULT;
-#            for (int j = 0; j < i*FILEMULT; j++) {
-#                lfs_file_write(&lfs, &file, buffer, size) => size;
-#            }
-#
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (int i = 1; i < 10; i++) {
-#            uint8_t buffer[1024];
-#            for (int j = 0; j < NAMEMULT; j++) {
-#                buffer[j] = '0'+i;
-#            }
-#            buffer[NAMEMULT] = '\0';
-#            struct lfs_info info;
-#            lfs_stat(&lfs, (char*)buffer, &info) => 0;
-#            info.type => LFS_TYPE_DIR;
-#
-#            buffer[NAMEMULT] = '/';
-#            for (int j = 0; j < NAMEMULT; j++) {
-#                buffer[j+NAMEMULT+1] = '0'+i;
-#            }
-#            buffer[2*NAMEMULT+1] = '\0';
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
-#            
-#            int size = NAMEMULT;
-#            for (int j = 0; j < i*FILEMULT; j++) {
-#                uint8_t rbuffer[1024];
-#                lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#                memcmp(buffer, rbuffer, size) => 0;
-#            }
-#
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#    }
-#'''
-#
-#[cases.test_badblocks_region_corruption] # (causes cascading failures)
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.ERASE_CYCLES = 0xffffffff
-#defines.ERASE_VALUE = [0x00, 0xff, -1]
-#defines.BADBLOCK_BEHAVIOR = [
-#    'LFS_EMUBD_BADBLOCK_PROGERROR',
-#    'LFS_EMUBD_BADBLOCK_ERASEERROR',
-#    'LFS_EMUBD_BADBLOCK_READERROR',
-#    'LFS_EMUBD_BADBLOCK_PROGNOOP',
-#    'LFS_EMUBD_BADBLOCK_ERASENOOP',
-#]
-#defines.NAMEMULT = 64
-#defines.FILEMULT = 1
-#code = '''
-#    for (lfs_block_t i = 0; i < (BLOCK_COUNT-2)/2; i++) {
-#        lfs_emubd_setwear(cfg, i+2, 0xffffffff) => 0;
-#    }
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 1; i < 10; i++) {
-#        uint8_t buffer[1024];
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j] = '0'+i;
-#        }
-#        buffer[NAMEMULT] = '\0';
-#        lfs_mkdir(&lfs, (char*)buffer) => 0;
-#
-#        buffer[NAMEMULT] = '/';
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j+NAMEMULT+1] = '0'+i;
-#        }
-#        buffer[2*NAMEMULT+1] = '\0';
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, (char*)buffer,
-#                LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#        
-#        lfs_size_t size = NAMEMULT;
-#        for (int j = 0; j < i*FILEMULT; j++) {
-#            lfs_file_write(&lfs, &file, buffer, size) => size;
-#        }
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 1; i < 10; i++) {
-#        uint8_t buffer[1024];
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j] = '0'+i;
-#        }
-#        buffer[NAMEMULT] = '\0';
-#        struct lfs_info info;
-#        lfs_stat(&lfs, (char*)buffer, &info) => 0;
-#        info.type => LFS_TYPE_DIR;
-#
-#        buffer[NAMEMULT] = '/';
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j+NAMEMULT+1] = '0'+i;
-#        }
-#        buffer[2*NAMEMULT+1] = '\0';
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
-#        
-#        lfs_size_t size = NAMEMULT;
-#        for (int j = 0; j < i*FILEMULT; j++) {
-#            uint8_t rbuffer[1024];
-#            lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#            memcmp(buffer, rbuffer, size) => 0;
-#        }
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_badblocks_alternating_corruption] # (causes cascading failures)
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.ERASE_CYCLES = 0xffffffff
-#defines.ERASE_VALUE = [0x00, 0xff, -1]
-#defines.BADBLOCK_BEHAVIOR = [
-#    'LFS_EMUBD_BADBLOCK_PROGERROR',
-#    'LFS_EMUBD_BADBLOCK_ERASEERROR',
-#    'LFS_EMUBD_BADBLOCK_READERROR',
-#    'LFS_EMUBD_BADBLOCK_PROGNOOP',
-#    'LFS_EMUBD_BADBLOCK_ERASENOOP',
-#]
-#defines.NAMEMULT = 64
-#defines.FILEMULT = 1
-#code = '''
-#    for (lfs_block_t i = 0; i < (BLOCK_COUNT-2)/2; i++) {
-#        lfs_emubd_setwear(cfg, (2*i) + 2, 0xffffffff) => 0;
-#    }
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 1; i < 10; i++) {
-#        uint8_t buffer[1024];
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j] = '0'+i;
-#        }
-#        buffer[NAMEMULT] = '\0';
-#        lfs_mkdir(&lfs, (char*)buffer) => 0;
-#
-#        buffer[NAMEMULT] = '/';
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j+NAMEMULT+1] = '0'+i;
-#        }
-#        buffer[2*NAMEMULT+1] = '\0';
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, (char*)buffer,
-#                LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#        
-#        lfs_size_t size = NAMEMULT;
-#        for (int j = 0; j < i*FILEMULT; j++) {
-#            lfs_file_write(&lfs, &file, buffer, size) => size;
-#        }
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 1; i < 10; i++) {
-#        uint8_t buffer[1024];
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j] = '0'+i;
-#        }
-#        buffer[NAMEMULT] = '\0';
-#        struct lfs_info info;
-#        lfs_stat(&lfs, (char*)buffer, &info) => 0;
-#        info.type => LFS_TYPE_DIR;
-#
-#        buffer[NAMEMULT] = '/';
-#        for (int j = 0; j < NAMEMULT; j++) {
-#            buffer[j+NAMEMULT+1] = '0'+i;
-#        }
-#        buffer[2*NAMEMULT+1] = '\0';
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
-#        
-#        lfs_size_t size = NAMEMULT;
-#        for (int j = 0; j < i*FILEMULT; j++) {
-#            uint8_t rbuffer[1024];
-#            lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#            memcmp(buffer, rbuffer, size) => 0;
-#        }
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## other corner cases
-#[cases.test_badblocks_superblocks] # (corrupt 1 or 0)
-#defines.ERASE_CYCLES = 0xffffffff
-#defines.ERASE_VALUE = [0x00, 0xff, -1]
-#defines.BADBLOCK_BEHAVIOR = [
-#    'LFS_EMUBD_BADBLOCK_PROGERROR',
-#    'LFS_EMUBD_BADBLOCK_ERASEERROR',
-#    'LFS_EMUBD_BADBLOCK_READERROR',
-#    'LFS_EMUBD_BADBLOCK_PROGNOOP',
-#    'LFS_EMUBD_BADBLOCK_ERASENOOP',
-#]
-#code = '''
-#    lfs_emubd_setwear(cfg, 0, 0xffffffff) => 0;
-#    lfs_emubd_setwear(cfg, 1, 0xffffffff) => 0;
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => LFS_ERR_NOSPC;
-#    lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-#'''
diff --git a/tests/test_bd.toml b/tests/test_bd.toml
index dc961748..25910ef3 100644
--- a/tests/test_bd.toml
+++ b/tests/test_bd.toml
@@ -245,6 +245,3 @@ code = '''
     }
 '''
 
-
-
-
diff --git a/tests/test_dirs.toml b/tests/test_dirs.toml
index 3810b527..6f661380 100644
--- a/tests/test_dirs.toml
+++ b/tests/test_dirs.toml
@@ -6952,937 +6952,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-
-#[cases.test_dirs_root]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_many_creation]
-#defines.N = 'range(3, 100, 3)'
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "dir%03d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "dir%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_many_removal]
-#defines.N = 'range(3, 100, 11)'
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "removeme%03d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "removeme%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "removeme%03d", i);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_many_rename]
-#defines.N = 'range(3, 100, 11)'
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "test%03d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "test%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char oldpath[128];
-#        char newpath[128];
-#        sprintf(oldpath, "test%03d", i);
-#        sprintf(newpath, "tedd%03d", i);
-#        lfs_rename(&lfs, oldpath, newpath) => 0;
-#    }
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "tedd%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#'''
-#
-#[cases.test_dirs_many_reentrant]
-#defines.N = [5, 11]
-#if = 'BLOCK_COUNT >= 4*N'
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hi%03d", i);
-#        err = lfs_mkdir(&lfs, path);
-#        assert(err == 0 || err == LFS_ERR_EXIST);
-#    }
-#
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hello%03d", i);
-#        err = lfs_remove(&lfs, path);
-#        assert(err == 0 || err == LFS_ERR_NOENT);
-#    }
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hi%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    for (int i = 0; i < N; i++) {
-#        char oldpath[128];
-#        char newpath[128];
-#        sprintf(oldpath, "hi%03d", i);
-#        sprintf(newpath, "hello%03d", i);
-#        // YES this can overwrite an existing newpath
-#        lfs_rename(&lfs, oldpath, newpath) => 0;
-#    }
-#
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hello%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hello%03d", i);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_file_creation]
-#defines.N = 'range(3, 100, 11)'
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "file%03d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "file%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#'''
-#
-#[cases.test_dirs_file_removal]
-#defines.N = 'range(3, 100, 11)'
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "removeme%03d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "removeme%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "removeme%03d", i);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_file_rename]
-#defines.N = 'range(3, 100, 11)'
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "test%03d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "test%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < N; i++) {
-#        char oldpath[128];
-#        char newpath[128];
-#        sprintf(oldpath, "test%03d", i);
-#        sprintf(newpath, "tedd%03d", i);
-#        lfs_rename(&lfs, oldpath, newpath) => 0;
-#    }
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "tedd%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#'''
-#
-#[cases.test_dirs_file_reentrant]
-#defines.N = [5, 25]
-#if = 'N < BLOCK_COUNT/2'
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hi%03d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path, LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hello%03d", i);
-#        err = lfs_remove(&lfs, path);
-#        assert(err == 0 || err == LFS_ERR_NOENT);
-#    }
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hi%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    for (int i = 0; i < N; i++) {
-#        char oldpath[128];
-#        char newpath[128];
-#        sprintf(oldpath, "hi%03d", i);
-#        sprintf(newpath, "hello%03d", i);
-#        // YES this can overwrite an existing newpath
-#        lfs_rename(&lfs, oldpath, newpath) => 0;
-#    }
-#
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hello%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "hello%03d", i);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_nested]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "potato") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "burito",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "potato/baked") => 0;
-#    lfs_mkdir(&lfs, "potato/sweet") => 0;
-#    lfs_mkdir(&lfs, "potato/fried") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "potato") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "baked") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "fried") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "sweet") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // try removing?
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_remove(&lfs, "potato") => LFS_ERR_NOTEMPTY;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // try renaming?
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "potato", "coldpotato") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "coldpotato", "warmpotato") => 0;
-#    lfs_rename(&lfs, "warmpotato", "hotpotato") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_remove(&lfs, "potato") => LFS_ERR_NOENT;
-#    lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOENT;
-#    lfs_remove(&lfs, "warmpotato") => LFS_ERR_NOENT;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // try cross-directory renaming
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "coldpotato") => 0;
-#    lfs_rename(&lfs, "hotpotato/baked", "coldpotato/baked") => 0;
-#    lfs_rename(&lfs, "coldpotato", "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_rename(&lfs, "hotpotato/fried", "coldpotato/fried") => 0;
-#    lfs_rename(&lfs, "coldpotato", "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_rename(&lfs, "hotpotato/sweet", "coldpotato/sweet") => 0;
-#    lfs_rename(&lfs, "coldpotato", "hotpotato") => 0;
-#    lfs_remove(&lfs, "coldpotato") => LFS_ERR_NOENT;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "hotpotato") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "baked") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "fried") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "sweet") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    
-#    // final remove
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "hotpotato/baked") => 0;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "hotpotato/fried") => 0;
-#    lfs_remove(&lfs, "hotpotato") => LFS_ERR_NOTEMPTY;
-#    lfs_remove(&lfs, "hotpotato/sweet") => 0;
-#    lfs_remove(&lfs, "hotpotato") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    info.type => LFS_TYPE_DIR;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "burito") == 0);
-#    info.type => LFS_TYPE_REG;
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_recursive_remove]
-#defines.N = [10, 100]
-#if = 'N < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "prickly-pear") => 0;
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "prickly-pear/cactus%03d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "prickly-pear") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "cactus%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs);
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_remove(&lfs, "prickly-pear") => LFS_ERR_NOTEMPTY;
-#
-#    lfs_dir_open(&lfs, &dir, "prickly-pear") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    for (int i = 0; i < N; i++) {
-#        char path[1024];
-#        sprintf(path, "cactus%03d", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(info.type == LFS_TYPE_DIR);
-#        assert(strcmp(info.name, path) == 0);
-#        sprintf(path, "prickly-pear/%s", info.name);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_remove(&lfs, "prickly-pear") => 0;
-#    lfs_remove(&lfs, "prickly-pear") => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_remove(&lfs, "prickly-pear") => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_other_errors]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "potato") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "burito",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    lfs_mkdir(&lfs, "potato") => LFS_ERR_EXIST;
-#    lfs_mkdir(&lfs, "burito") => LFS_ERR_EXIST;
-#    lfs_file_open(&lfs, &file, "burito",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
-#    lfs_file_open(&lfs, &file, "potato",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "tomato") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "burito") => LFS_ERR_NOTDIR;
-#    lfs_file_open(&lfs, &file, "tomato", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "potato", LFS_O_RDONLY) => LFS_ERR_ISDIR;
-#    lfs_file_open(&lfs, &file, "tomato", LFS_O_WRONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "potato", LFS_O_WRONLY) => LFS_ERR_ISDIR;
-#    lfs_file_open(&lfs, &file, "potato",
-#            LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_ISDIR;
-#
-#    lfs_mkdir(&lfs, "/") => LFS_ERR_EXIST;
-#    lfs_file_open(&lfs, &file, "/",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => LFS_ERR_EXIST;
-#    lfs_file_open(&lfs, &file, "/", LFS_O_RDONLY) => LFS_ERR_ISDIR;
-#    lfs_file_open(&lfs, &file, "/", LFS_O_WRONLY) => LFS_ERR_ISDIR;
-#    lfs_file_open(&lfs, &file, "/",
-#            LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_ISDIR;
-#
-#    // check that errors did not corrupt directory
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(strcmp(info.name, "burito") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "potato") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#
-#    // or on disk
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, ".") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "..") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(strcmp(info.name, "burito") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(info.type == LFS_TYPE_DIR);
-#    assert(strcmp(info.name, "potato") == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_dirs_seek]
-#defines.COUNT = [4, 128, 132]
-#if = 'COUNT < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "hello") => 0;
-#    for (int i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "hello/kitty%03d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    for (int j = 2; j < COUNT; j++) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "hello") => 0;
-#        struct lfs_info info;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, ".") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, "..") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_soff_t pos;
-#        for (int i = 0; i < j; i++) {
-#            char path[1024];
-#            sprintf(path, "kitty%03d", i);
-#            lfs_dir_read(&lfs, &dir, &info) => 1;
-#            assert(strcmp(info.name, path) == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#            pos = lfs_dir_tell(&lfs, &dir);
-#            assert(pos >= 0);
-#        }
-#
-#        lfs_dir_seek(&lfs, &dir, pos) => 0;
-#        char path[1024];
-#        sprintf(path, "kitty%03d", j);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_dir_rewind(&lfs, &dir) => 0;
-#        sprintf(path, "kitty%03u", 0);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, ".") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, "..") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_dir_seek(&lfs, &dir, pos) => 0;
-#        sprintf(path, "kitty%03d", j);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_dir_close(&lfs, &dir) => 0;
-#        lfs_unmount(&lfs) => 0;
-#    }
-#'''
-#
-#[cases.test_dirs_toot_seek]
-#defines.COUNT = [4, 128, 132]
-#if = 'COUNT < BLOCK_COUNT/2'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "hi%03d", i);
-#        lfs_mkdir(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    for (int j = 2; j < COUNT; j++) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "/") => 0;
-#        struct lfs_info info;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, ".") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, "..") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_soff_t pos;
-#        for (int i = 0; i < j; i++) {
-#            char path[1024];
-#            sprintf(path, "hi%03d", i);
-#            lfs_dir_read(&lfs, &dir, &info) => 1;
-#            assert(strcmp(info.name, path) == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#            pos = lfs_dir_tell(&lfs, &dir);
-#            assert(pos >= 0);
-#        }
-#
-#        lfs_dir_seek(&lfs, &dir, pos) => 0;
-#        char path[1024];
-#        sprintf(path, "hi%03d", j);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_dir_rewind(&lfs, &dir) => 0;
-#        sprintf(path, "hi%03u", 0);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, ".") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, "..") == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_dir_seek(&lfs, &dir, pos) => 0;
-#        sprintf(path, "hi%03d", j);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_DIR);
-#
-#        lfs_dir_close(&lfs, &dir) => 0;
-#        lfs_unmount(&lfs) => 0;
-#    }
-#'''
-#
diff --git a/tests/test_entries.toml b/tests/test_entries.toml
deleted file mode 100644
index 8febc1b9..00000000
--- a/tests/test_entries.toml
+++ /dev/null
@@ -1,642 +0,0 @@
-## These tests are for some specific corner cases with neighboring inline files.
-## Note that these tests are intended for 512 byte inline sizes. They should
-## still pass with other inline sizes but wouldn't be testing anything.
-#
-#defines.CACHE_SIZE = 512
-#if = 'CACHE_SIZE % PROG_SIZE == 0 && CACHE_SIZE == 512'
-#
-#[cases.test_entries_grow]
-#code = '''
-#    uint8_t wbuffer[1024];
-#    uint8_t rbuffer[1024];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // write hi0 20
-#    char path[1024];
-#    lfs_size_t size;
-#    sprintf(path, "hi0"); size = 20;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi2 20
-#    sprintf(path, "hi2"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi3 20
-#    sprintf(path, "hi3"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi0 20
-#    sprintf(path, "hi0"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi2 20
-#    sprintf(path, "hi2"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 20
-#    sprintf(path, "hi3"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_shrink]
-#code = '''
-#    uint8_t wbuffer[1024];
-#    uint8_t rbuffer[1024];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // write hi0 20
-#    char path[1024];
-#    lfs_size_t size;
-#    sprintf(path, "hi0"); size = 20;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi2 20
-#    sprintf(path, "hi2"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi3 20
-#    sprintf(path, "hi3"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi0 20
-#    sprintf(path, "hi0"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi2 20
-#    sprintf(path, "hi2"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 20
-#    sprintf(path, "hi3"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_spill]
-#code = '''
-#    uint8_t wbuffer[1024];
-#    uint8_t rbuffer[1024];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // write hi0 200
-#    char path[1024];
-#    lfs_size_t size;
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi0 200
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_push_spill]
-#code = '''
-#    uint8_t wbuffer[1024];
-#    uint8_t rbuffer[1024];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // write hi0 200
-#    char path[1024];
-#    lfs_size_t size;
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi0 200
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_push_spill_two]
-#code = '''
-#    uint8_t wbuffer[1024];
-#    uint8_t rbuffer[1024];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // write hi0 200
-#    char path[1024];
-#    lfs_size_t size;
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi4 200
-#    sprintf(path, "hi4"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi1 20
-#    sprintf(path, "hi1"); size = 20;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // read hi0 200
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi4 200
-#    sprintf(path, "hi4"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_drop]
-#code = '''
-#    uint8_t wbuffer[1024];
-#    uint8_t rbuffer[1024];
-#
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // write hi0 200
-#    char path[1024];
-#    lfs_size_t size;
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi1 200
-#    sprintf(path, "hi1"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // write hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_remove(&lfs, "hi1") => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "hi1", &info) => LFS_ERR_NOENT;
-#    // read hi0 200
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi2 200
-#    sprintf(path, "hi2"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_remove(&lfs, "hi2") => 0;
-#    lfs_stat(&lfs, "hi2", &info) => LFS_ERR_NOENT;
-#    // read hi0 200
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    // read hi3 200
-#    sprintf(path, "hi3"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_remove(&lfs, "hi3") => 0;
-#    lfs_stat(&lfs, "hi3", &info) => LFS_ERR_NOENT;
-#    // read hi0 200
-#    sprintf(path, "hi0"); size = 200;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_remove(&lfs, "hi0") => 0;
-#    lfs_stat(&lfs, "hi0", &info) => LFS_ERR_NOENT;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_create_too_big]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    char path[1024];
-#    memset(path, 'm', 200);
-#    path[200] = '\0';
-#
-#    lfs_size_t size = 400;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    uint8_t wbuffer[1024];
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    size = 400;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    uint8_t rbuffer[1024];
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_entries_resize_too_big]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    char path[1024];
-#    memset(path, 'm', 200);
-#    path[200] = '\0';
-#
-#    lfs_size_t size = 40;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    uint8_t wbuffer[1024];
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    size = 40;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    uint8_t rbuffer[1024];
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    size = 400;
-#    lfs_file_open(&lfs, &file, path,
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    memset(wbuffer, 'c', size);
-#    lfs_file_write(&lfs, &file, wbuffer, size) => size;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    size = 400;
-#    lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#    memcmp(rbuffer, wbuffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_evil.toml b/tests/test_evil.toml
deleted file mode 100644
index d7aebc32..00000000
--- a/tests/test_evil.toml
+++ /dev/null
@@ -1,306 +0,0 @@
-## Tests for recovering from conditions which shouldn't normally
-## happen during normal operation of littlefs
-#
-## invalid pointer tests (outside of block_count)
-#
-#[cases.test_evil_invalid_tail_pointer]
-#defines.TAIL_TYPE = ['LFS_TYPE_HARDTAIL', 'LFS_TYPE_SOFTTAIL']
-#defines.INVALSET = [0x3, 0x1, 0x2]
-#in = "lfs.c"
-#code = '''
-#    // create littlefs
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    // change tail-pointer to invalid pointers
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
-#            {LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8),
-#                (lfs_block_t[2]){
-#                    (INVALSET & 0x1) ? 0xcccccccc : 0,
-#                    (INVALSET & 0x2) ? 0xcccccccc : 0}})) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that mount fails gracefully
-#    lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-#'''
-#
-#[cases.test_evil_invalid_dir_pointer]
-#defines.INVALSET = [0x3, 0x1, 0x2]
-#in = "lfs.c"
-#code = '''
-#    // create littlefs
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    // make a dir
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "dir_here") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // change the dir pointer to be invalid
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    // make sure id 1 == our directory
-#    uint8_t buffer[1024];
-#    lfs_dir_get(&lfs, &mdir,
-#            LFS_MKTAG(0x700, 0x3ff, 0),
-#            LFS_MKTAG(LFS_TYPE_NAME, 1, strlen("dir_here")), buffer)
-#                => LFS_MKTAG(LFS_TYPE_DIR, 1, strlen("dir_here"));
-#    assert(memcmp((char*)buffer, "dir_here", strlen("dir_here")) == 0);
-#    // change dir pointer
-#    lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
-#            {LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, 8),
-#                (lfs_block_t[2]){
-#                    (INVALSET & 0x1) ? 0xcccccccc : 0,
-#                    (INVALSET & 0x2) ? 0xcccccccc : 0}})) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that accessing our bad dir fails, note there's a number
-#    // of ways to access the dir, some can fail, but some don't
-#    lfs_mount(&lfs, cfg) => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "dir_here", &info) => 0;
-#    assert(strcmp(info.name, "dir_here") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "dir_here") => LFS_ERR_CORRUPT;
-#    lfs_stat(&lfs, "dir_here/file_here", &info) => LFS_ERR_CORRUPT;
-#    lfs_dir_open(&lfs, &dir, "dir_here/dir_here") => LFS_ERR_CORRUPT;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "dir_here/file_here",
-#            LFS_O_RDONLY) => LFS_ERR_CORRUPT;
-#    lfs_file_open(&lfs, &file, "dir_here/file_here",
-#            LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_CORRUPT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_evil_invalid_file_pointer]
-#in = "lfs.c"
-#defines.SIZE = [10, 1000, 100000] # faked file size
-#code = '''
-#    // create littlefs
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    // make a file
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "file_here",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // change the file pointer to be invalid
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    // make sure id 1 == our file
-#    uint8_t buffer[1024];
-#    lfs_dir_get(&lfs, &mdir,
-#            LFS_MKTAG(0x700, 0x3ff, 0),
-#            LFS_MKTAG(LFS_TYPE_NAME, 1, strlen("file_here")), buffer)
-#                => LFS_MKTAG(LFS_TYPE_REG, 1, strlen("file_here"));
-#    assert(memcmp((char*)buffer, "file_here", strlen("file_here")) == 0);
-#    // change file pointer
-#    lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
-#            {LFS_MKTAG(LFS_TYPE_CTZSTRUCT, 1, sizeof(struct lfs_ctz)),
-#                &(struct lfs_ctz){0xcccccccc, lfs_tole32(SIZE)}})) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that accessing our bad file fails, note there's a number
-#    // of ways to access the dir, some can fail, but some don't
-#    lfs_mount(&lfs, cfg) => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "file_here", &info) => 0;
-#    assert(strcmp(info.name, "file_here") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == SIZE);
-#
-#    lfs_file_open(&lfs, &file, "file_here", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, SIZE) => LFS_ERR_CORRUPT;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // any allocs that traverse CTZ must unfortunately must fail
-#    if (SIZE > 2*BLOCK_SIZE) {
-#        lfs_mkdir(&lfs, "dir_here") => LFS_ERR_CORRUPT;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_evil_invalid_ctz_pointer] # invalid pointer in CTZ skip-list test
-#defines.SIZE = ['2*BLOCK_SIZE', '3*BLOCK_SIZE', '4*BLOCK_SIZE']
-#in = "lfs.c"
-#code = '''
-#    // create littlefs
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    // make a file
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "file_here",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    for (int i = 0; i < SIZE; i++) {
-#        char c = 'c';
-#        lfs_file_write(&lfs, &file, &c, 1) => 1;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    // change pointer in CTZ skip-list to be invalid
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    // make sure id 1 == our file and get our CTZ structure
-#    uint8_t buffer[4*BLOCK_SIZE];
-#    lfs_dir_get(&lfs, &mdir,
-#            LFS_MKTAG(0x700, 0x3ff, 0),
-#            LFS_MKTAG(LFS_TYPE_NAME, 1, strlen("file_here")), buffer)
-#                => LFS_MKTAG(LFS_TYPE_REG, 1, strlen("file_here"));
-#    assert(memcmp((char*)buffer, "file_here", strlen("file_here")) == 0);
-#    struct lfs_ctz ctz;
-#    lfs_dir_get(&lfs, &mdir,
-#            LFS_MKTAG(0x700, 0x3ff, 0),
-#            LFS_MKTAG(LFS_TYPE_STRUCT, 1, sizeof(struct lfs_ctz)), &ctz)
-#                => LFS_MKTAG(LFS_TYPE_CTZSTRUCT, 1, sizeof(struct lfs_ctz));
-#    lfs_ctz_fromle32(&ctz);
-#    // rewrite block to contain bad pointer
-#    uint8_t bbuffer[BLOCK_SIZE];
-#    cfg->read(cfg, ctz.head, 0, bbuffer, BLOCK_SIZE) => 0;
-#    uint32_t bad = lfs_tole32(0xcccccccc);
-#    memcpy(&bbuffer[0], &bad, sizeof(bad));
-#    memcpy(&bbuffer[4], &bad, sizeof(bad));
-#    cfg->erase(cfg, ctz.head) => 0;
-#    cfg->prog(cfg, ctz.head, 0, bbuffer, BLOCK_SIZE) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that accessing our bad file fails, note there's a number
-#    // of ways to access the dir, some can fail, but some don't
-#    lfs_mount(&lfs, cfg) => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "file_here", &info) => 0;
-#    assert(strcmp(info.name, "file_here") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == SIZE);
-#
-#    lfs_file_open(&lfs, &file, "file_here", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, SIZE) => LFS_ERR_CORRUPT;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // any allocs that traverse CTZ must unfortunately must fail
-#    if (SIZE > 2*BLOCK_SIZE) {
-#        lfs_mkdir(&lfs, "dir_here") => LFS_ERR_CORRUPT;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#
-#[cases.test_evil_invalid_gstate_pointer]
-#defines.INVALSET = [0x3, 0x1, 0x2]
-#in = "lfs.c"
-#code = '''
-#    // create littlefs
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    // create an invalid gstate
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    lfs_fs_prepmove(&lfs, 1, (lfs_block_t [2]){
-#            (INVALSET & 0x1) ? 0xcccccccc : 0,
-#            (INVALSET & 0x2) ? 0xcccccccc : 0});
-#    lfs_dir_commit(&lfs, &mdir, NULL, 0) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that mount fails gracefully
-#    // mount may not fail, but our first alloc should fail when
-#    // we try to fix the gstate
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "should_fail") => LFS_ERR_CORRUPT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## cycle detection/recovery tests
-#
-#[cases.test_evil_mdir_loop] # metadata-pair threaded-list loop test
-#in = "lfs.c"
-#code = '''
-#    // create littlefs
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    // change tail-pointer to point to ourself
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
-#            {LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8),
-#                (lfs_block_t[2]){0, 1}})) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that mount fails gracefully
-#    lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-#'''
-#
-#[cases.test_evil_mdir_loop2] # metadata-pair threaded-list 2-length loop test
-#in = "lfs.c"
-#code = '''
-#    // create littlefs with child dir
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "child") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // find child
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_block_t pair[2];
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    lfs_dir_get(&lfs, &mdir,
-#            LFS_MKTAG(0x7ff, 0x3ff, 0),
-#            LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair)), pair)
-#                => LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair));
-#    lfs_pair_fromle32(pair);
-#    // change tail-pointer to point to root
-#    lfs_dir_fetch(&lfs, &mdir, pair) => 0;
-#    lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
-#            {LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8),
-#                (lfs_block_t[2]){0, 1}})) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that mount fails gracefully
-#    lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-#'''
-#
-#[cases.test_evil_mdir_loop_child] # metadata-pair threaded-list 1-length child loop test
-#in = "lfs.c"
-#code = '''
-#    // create littlefs with child dir
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "child") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // find child
-#    lfs_init(&lfs, cfg) => 0;
-#    lfs_mdir_t mdir;
-#    lfs_block_t pair[2];
-#    lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
-#    lfs_dir_get(&lfs, &mdir,
-#            LFS_MKTAG(0x7ff, 0x3ff, 0),
-#            LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair)), pair)
-#                => LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair));
-#    lfs_pair_fromle32(pair);
-#    // change tail-pointer to point to ourself
-#    lfs_dir_fetch(&lfs, &mdir, pair) => 0;
-#    lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
-#            {LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8), pair})) => 0;
-#    lfs_deinit(&lfs) => 0;
-#
-#    // test that mount fails gracefully
-#    lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-#'''
diff --git a/tests/test_exhaustion.toml b/tests/test_exhaustion.toml
index f0354d09..ff8fb2c9 100644
--- a/tests/test_exhaustion.toml
+++ b/tests/test_exhaustion.toml
@@ -1804,511 +1804,3 @@ code = '''
     assert(run_ops[1]*110/100 > 2*run_ops[0]);
 '''
 
-
-
-
-## test running a filesystem to exhaustion
-#[cases.test_exhaustion_normal]
-#defines.ERASE_CYCLES = 10
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.BLOCK_CYCLES = 'ERASE_CYCLES / 2'
-#defines.BADBLOCK_BEHAVIOR = [
-#    'LFS_EMUBD_BADBLOCK_PROGERROR',
-#    'LFS_EMUBD_BADBLOCK_ERASEERROR',
-#    'LFS_EMUBD_BADBLOCK_READERROR',
-#    'LFS_EMUBD_BADBLOCK_PROGNOOP',
-#    'LFS_EMUBD_BADBLOCK_ERASENOOP',
-#]
-#defines.FILES = 10
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "roadrunner") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    uint32_t cycle = 0;
-#    while (true) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // chose name, roughly random seed, and random 2^n size
-#            char path[1024];
-#            sprintf(path, "roadrunner/test%d", i);
-#            uint32_t prng = cycle * i;
-#            lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path,
-#                    LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#            for (lfs_size_t j = 0; j < size; j++) {
-#                char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
-#                assert(res == 1 || res == LFS_ERR_NOSPC);
-#                if (res == LFS_ERR_NOSPC) {
-#                    int err = lfs_file_close(&lfs, &file);
-#                    assert(err == 0 || err == LFS_ERR_NOSPC);
-#                    lfs_unmount(&lfs) => 0;
-#                    goto exhausted;
-#                }
-#            }
-#
-#            int err = lfs_file_close(&lfs, &file);
-#            assert(err == 0 || err == LFS_ERR_NOSPC);
-#            if (err == LFS_ERR_NOSPC) {
-#                lfs_unmount(&lfs) => 0;
-#                goto exhausted;
-#            }
-#        }
-#
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // check for errors
-#            char path[1024];
-#            sprintf(path, "roadrunner/test%d", i);
-#            uint32_t prng = cycle * i;
-#            lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#            for (lfs_size_t j = 0; j < size; j++) {
-#                char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                char r;
-#                lfs_file_read(&lfs, &file, &r, 1) => 1;
-#                assert(r == c);
-#            }
-#
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        cycle += 1;
-#    }
-#
-#exhausted:
-#    // should still be readable
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (uint32_t i = 0; i < FILES; i++) {
-#        // check for errors
-#        char path[1024];
-#        sprintf(path, "roadrunner/test%d", i);
-#        struct lfs_info info;
-#        lfs_stat(&lfs, path, &info) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    LFS_WARN("completed %d cycles", cycle);
-#'''
-#
-## test running a filesystem to exhaustion
-## which also requires expanding superblocks
-#[cases.test_exhaustion_superblocks]
-#defines.ERASE_CYCLES = 10
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.BLOCK_CYCLES = 'ERASE_CYCLES / 2'
-#defines.BADBLOCK_BEHAVIOR = [
-#    'LFS_EMUBD_BADBLOCK_PROGERROR',
-#    'LFS_EMUBD_BADBLOCK_ERASEERROR',
-#    'LFS_EMUBD_BADBLOCK_READERROR',
-#    'LFS_EMUBD_BADBLOCK_PROGNOOP',
-#    'LFS_EMUBD_BADBLOCK_ERASENOOP',
-#]
-#defines.FILES = 10
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    uint32_t cycle = 0;
-#    while (true) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // chose name, roughly random seed, and random 2^n size
-#            char path[1024];
-#            sprintf(path, "test%d", i);
-#            uint32_t prng = cycle * i;
-#            lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path,
-#                    LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#            for (lfs_size_t j = 0; j < size; j++) {
-#                char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
-#                assert(res == 1 || res == LFS_ERR_NOSPC);
-#                if (res == LFS_ERR_NOSPC) {
-#                    int err = lfs_file_close(&lfs, &file);
-#                    assert(err == 0 || err == LFS_ERR_NOSPC);
-#                    lfs_unmount(&lfs) => 0;
-#                    goto exhausted;
-#                }
-#            }
-#
-#            int err = lfs_file_close(&lfs, &file);
-#            assert(err == 0 || err == LFS_ERR_NOSPC);
-#            if (err == LFS_ERR_NOSPC) {
-#                lfs_unmount(&lfs) => 0;
-#                goto exhausted;
-#            }
-#        }
-#
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // check for errors
-#            char path[1024];
-#            sprintf(path, "test%d", i);
-#            uint32_t prng = cycle * i;
-#            lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#            for (lfs_size_t j = 0; j < size; j++) {
-#                char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                char r;
-#                lfs_file_read(&lfs, &file, &r, 1) => 1;
-#                assert(r == c);
-#            }
-#
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        cycle += 1;
-#    }
-#
-#exhausted:
-#    // should still be readable
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (uint32_t i = 0; i < FILES; i++) {
-#        // check for errors
-#        char path[1024];
-#        struct lfs_info info;
-#        sprintf(path, "test%d", i);
-#        lfs_stat(&lfs, path, &info) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    LFS_WARN("completed %d cycles", cycle);
-#'''
-#
-## These are a sort of high-level litmus test for wear-leveling. One definition
-## of wear-leveling is that increasing a block device's space translates directly
-## into increasing the block devices lifetime. This is something we can actually
-## check for.
-#
-## wear-level test running a filesystem to exhaustion
-#[cases.test_exhuastion_wear_leveling]
-#defines.ERASE_CYCLES = 20
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.BLOCK_CYCLES = 'ERASE_CYCLES / 2'
-#defines.FILES = 10
-#code = '''
-#    uint32_t run_cycles[2];
-#    const uint32_t run_block_count[2] = {BLOCK_COUNT/2, BLOCK_COUNT};
-#
-#    for (int run = 0; run < 2; run++) {
-#        for (lfs_block_t b = 0; b < BLOCK_COUNT; b++) {
-#            lfs_emubd_setwear(cfg, b,
-#                    (b < run_block_count[run]) ? 0 : ERASE_CYCLES) => 0;
-#        }
-#
-#        lfs_t lfs;
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#        lfs_mkdir(&lfs, "roadrunner") => 0;
-#        lfs_unmount(&lfs) => 0;
-#
-#        uint32_t cycle = 0;
-#        while (true) {
-#            lfs_mount(&lfs, cfg) => 0;
-#            for (uint32_t i = 0; i < FILES; i++) {
-#                // chose name, roughly random seed, and random 2^n size
-#                char path[1024];
-#                sprintf(path, "roadrunner/test%d", i);
-#                uint32_t prng = cycle * i;
-#                lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#                lfs_file_t file;
-#                lfs_file_open(&lfs, &file, path,
-#                        LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#                for (lfs_size_t j = 0; j < size; j++) {
-#                    char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                    lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
-#                    assert(res == 1 || res == LFS_ERR_NOSPC);
-#                    if (res == LFS_ERR_NOSPC) {
-#                        int err = lfs_file_close(&lfs, &file);
-#                        assert(err == 0 || err == LFS_ERR_NOSPC);
-#                        lfs_unmount(&lfs) => 0;
-#                        goto exhausted;
-#                    }
-#                }
-#
-#                int err = lfs_file_close(&lfs, &file);
-#                assert(err == 0 || err == LFS_ERR_NOSPC);
-#                if (err == LFS_ERR_NOSPC) {
-#                    lfs_unmount(&lfs) => 0;
-#                    goto exhausted;
-#                }
-#            }
-#
-#            for (uint32_t i = 0; i < FILES; i++) {
-#                // check for errors
-#                char path[1024];
-#                sprintf(path, "roadrunner/test%d", i);
-#                uint32_t prng = cycle * i;
-#                lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#                lfs_file_t file;
-#                lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#                for (lfs_size_t j = 0; j < size; j++) {
-#                    char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                    char r;
-#                    lfs_file_read(&lfs, &file, &r, 1) => 1;
-#                    assert(r == c);
-#                }
-#
-#                lfs_file_close(&lfs, &file) => 0;
-#            }
-#            lfs_unmount(&lfs) => 0;
-#
-#            cycle += 1;
-#        }
-#
-#exhausted:
-#        // should still be readable
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // check for errors
-#            char path[1024];
-#            struct lfs_info info;
-#            sprintf(path, "roadrunner/test%d", i);
-#            lfs_stat(&lfs, path, &info) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        run_cycles[run] = cycle;
-#        LFS_WARN("completed %d blocks %d cycles",
-#                run_block_count[run], run_cycles[run]);
-#    }
-#
-#    // check we increased the lifetime by 2x with ~10% error
-#    LFS_ASSERT(run_cycles[1]*110/100 > 2*run_cycles[0]);
-#'''
-#
-## wear-level test + expanding superblock
-#[cases.test_exhaustion_wear_leveling_superblocks]
-#defines.ERASE_CYCLES = 20
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.BLOCK_CYCLES = 'ERASE_CYCLES / 2'
-#defines.FILES = 10
-#code = '''
-#    uint32_t run_cycles[2];
-#    const uint32_t run_block_count[2] = {BLOCK_COUNT/2, BLOCK_COUNT};
-#
-#    for (int run = 0; run < 2; run++) {
-#        for (lfs_block_t b = 0; b < BLOCK_COUNT; b++) {
-#            lfs_emubd_setwear(cfg, b,
-#                    (b < run_block_count[run]) ? 0 : ERASE_CYCLES) => 0;
-#        }
-#
-#        lfs_t lfs;
-#        lfs_format(&lfs, cfg) => 0;
-#
-#        uint32_t cycle = 0;
-#        while (true) {
-#            lfs_mount(&lfs, cfg) => 0;
-#            for (uint32_t i = 0; i < FILES; i++) {
-#                // chose name, roughly random seed, and random 2^n size
-#                char path[1024];
-#                sprintf(path, "test%d", i);
-#                uint32_t prng = cycle * i;
-#                lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#                lfs_file_t file;
-#                lfs_file_open(&lfs, &file, path,
-#                        LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#                for (lfs_size_t j = 0; j < size; j++) {
-#                    char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                    lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
-#                    assert(res == 1 || res == LFS_ERR_NOSPC);
-#                    if (res == LFS_ERR_NOSPC) {
-#                        int err = lfs_file_close(&lfs, &file);
-#                        assert(err == 0 || err == LFS_ERR_NOSPC);
-#                        lfs_unmount(&lfs) => 0;
-#                        goto exhausted;
-#                    }
-#                }
-#
-#                int err = lfs_file_close(&lfs, &file);
-#                assert(err == 0 || err == LFS_ERR_NOSPC);
-#                if (err == LFS_ERR_NOSPC) {
-#                    lfs_unmount(&lfs) => 0;
-#                    goto exhausted;
-#                }
-#            }
-#
-#            for (uint32_t i = 0; i < FILES; i++) {
-#                // check for errors
-#                char path[1024];
-#                sprintf(path, "test%d", i);
-#                uint32_t prng = cycle * i;
-#                lfs_size_t size = 1 << ((TEST_PRNG(&prng) % 10)+2);
-#
-#                lfs_file_t file;
-#                lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#                for (lfs_size_t j = 0; j < size; j++) {
-#                    char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                    char r;
-#                    lfs_file_read(&lfs, &file, &r, 1) => 1;
-#                    assert(r == c);
-#                }
-#
-#                lfs_file_close(&lfs, &file) => 0;
-#            }
-#            lfs_unmount(&lfs) => 0;
-#
-#            cycle += 1;
-#        }
-#
-#exhausted:
-#        // should still be readable
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // check for errors
-#            char path[1024];
-#            struct lfs_info info;
-#            sprintf(path, "test%d", i);
-#            lfs_stat(&lfs, path, &info) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        run_cycles[run] = cycle;
-#        LFS_WARN("completed %d blocks %d cycles",
-#                run_block_count[run], run_cycles[run]);
-#    }
-#
-#    // check we increased the lifetime by 2x with ~10% error
-#    LFS_ASSERT(run_cycles[1]*110/100 > 2*run_cycles[0]);
-#'''
-#
-## test that we wear blocks roughly evenly
-#[cases.test_exhaustion_wear_distribution]
-#defines.ERASE_CYCLES = 0xffffffff
-#defines.BLOCK_COUNT = 256 # small bd so test runs faster
-#defines.BLOCK_CYCLES = [5, 4, 3, 2, 1]
-#defines.CYCLES = 100
-#defines.FILES = 10
-#if = 'BLOCK_CYCLES < CYCLES/10'
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "roadrunner") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    uint32_t cycle = 0;
-#    while (cycle < CYCLES) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // chose name, roughly random seed, and random 2^n size
-#            char path[1024];
-#            sprintf(path, "roadrunner/test%d", i);
-#            uint32_t prng = cycle * i;
-#            lfs_size_t size = 1 << 4; //((TEST_PRNG(&prng) % 10)+2);
-#
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path,
-#                    LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#            for (lfs_size_t j = 0; j < size; j++) {
-#                char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
-#                assert(res == 1 || res == LFS_ERR_NOSPC);
-#                if (res == LFS_ERR_NOSPC) {
-#                    int err = lfs_file_close(&lfs, &file);
-#                    assert(err == 0 || err == LFS_ERR_NOSPC);
-#                    lfs_unmount(&lfs) => 0;
-#                    goto exhausted;
-#                }
-#            }
-#
-#            int err = lfs_file_close(&lfs, &file);
-#            assert(err == 0 || err == LFS_ERR_NOSPC);
-#            if (err == LFS_ERR_NOSPC) {
-#                lfs_unmount(&lfs) => 0;
-#                goto exhausted;
-#            }
-#        }
-#
-#        for (uint32_t i = 0; i < FILES; i++) {
-#            // check for errors
-#            char path[1024];
-#            sprintf(path, "roadrunner/test%d", i);
-#            uint32_t prng = cycle * i;
-#            lfs_size_t size = 1 << 4; //((TEST_PRNG(&prng) % 10)+2);
-#
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#            for (lfs_size_t j = 0; j < size; j++) {
-#                char c = 'a' + (TEST_PRNG(&prng) % 26);
-#                char r;
-#                lfs_file_read(&lfs, &file, &r, 1) => 1;
-#                assert(r == c);
-#            }
-#
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#
-#        cycle += 1;
-#    }
-#
-#exhausted:
-#    // should still be readable
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (uint32_t i = 0; i < FILES; i++) {
-#        // check for errors
-#        char path[1024];
-#        struct lfs_info info;
-#        sprintf(path, "roadrunner/test%d", i);
-#        lfs_stat(&lfs, path, &info) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    LFS_WARN("completed %d cycles", cycle);
-#
-#    // check the wear on our block device
-#    lfs_emubd_wear_t minwear = -1;
-#    lfs_emubd_wear_t totalwear = 0;
-#    lfs_emubd_wear_t maxwear = 0;
-#    // skip 0 and 1 as superblock movement is intentionally avoided
-#    for (lfs_block_t b = 2; b < BLOCK_COUNT; b++) {
-#        lfs_emubd_wear_t wear = lfs_emubd_wear(cfg, b);
-#        printf("%08x: wear %d\n", b, wear);
-#        assert(wear >= 0);
-#        if (wear < minwear) {
-#            minwear = wear;
-#        }
-#        if (wear > maxwear) {
-#            maxwear = wear;
-#        }
-#        totalwear += wear;
-#    }
-#    lfs_emubd_wear_t avgwear = totalwear / BLOCK_COUNT;
-#    LFS_WARN("max wear: %d cycles", maxwear);
-#    LFS_WARN("avg wear: %d cycles", totalwear / (int)BLOCK_COUNT);
-#    LFS_WARN("min wear: %d cycles", minwear);
-#
-#    // find standard deviation^2
-#    lfs_emubd_wear_t dev2 = 0;
-#    for (lfs_block_t b = 2; b < BLOCK_COUNT; b++) {
-#        lfs_emubd_wear_t wear = lfs_emubd_wear(cfg, b);
-#        assert(wear >= 0);
-#        lfs_emubd_swear_t diff = wear - avgwear;
-#        dev2 += diff*diff;
-#    }
-#    dev2 /= totalwear;
-#    LFS_WARN("std dev^2: %d", dev2);
-#    assert(dev2 < 8);
-#'''
-#
diff --git a/tests/test_files.toml b/tests/test_files.toml
index b6a8d8b7..d079fc75 100644
--- a/tests/test_files.toml
+++ b/tests/test_files.toml
@@ -3310,17 +3310,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-# TODO
-# [cases.test_files_multi_readers]
-# [cases.test_files_multi_readers_one_writer]
-# [cases.test_files_multi_writers]
-# [cases.test_files_multi_readers_multi_writers]
-
-# [cases.test_files_interleaved]
-# [cases.test_files_interleaved_fuzz]
-# [cases.test_files_interleaved_fuzz_fuzz]
-# [cases.test_files_dtree_fuzz]
-# [cases.test_files_dtree_fuzz_fuzz]
-
-
diff --git a/tests/test_interspersed.toml b/tests/test_interspersed.toml
deleted file mode 100644
index d30d1738..00000000
--- a/tests/test_interspersed.toml
+++ /dev/null
@@ -1,270 +0,0 @@
-#
-#[cases.test_interspersed_files]
-#defines.SIZE = [10, 100]
-#defines.FILES = [4, 10, 26] 
-#code = '''
-#    lfs_t lfs;
-#    lfs_file_t files[FILES];
-#    const char alphas[] = "abcdefghijklmnopqrstuvwxyz";
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_file_open(&lfs, &files[j], path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#    }
-#
-#    for (int i = 0; i < SIZE; i++) {
-#        for (int j = 0; j < FILES; j++) {
-#            lfs_file_write(&lfs, &files[j], &alphas[j], 1) => 1;
-#        }
-#    }
-#
-#    for (int j = 0; j < FILES; j++) {
-#        lfs_file_close(&lfs, &files[j]);
-#    }
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(info.size == SIZE);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_file_open(&lfs, &files[j], path, LFS_O_RDONLY) => 0;
-#    }
-#
-#    for (int i = 0; i < 10; i++) {
-#        for (int j = 0; j < FILES; j++) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &files[j], buffer, 1) => 1;
-#            assert(buffer[0] == alphas[j]);
-#        }
-#    }
-#
-#    for (int j = 0; j < FILES; j++) {
-#        lfs_file_close(&lfs, &files[j]);
-#    }
-#    
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_interspersed_remove_files]
-#defines.SIZE = [10, 100]
-#defines.FILES = [4, 10, 26]
-#code = '''
-#    lfs_t lfs;
-#    const char alphas[] = "abcdefghijklmnopqrstuvwxyz";
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-#        for (int i = 0; i < SIZE; i++) {
-#            lfs_file_write(&lfs, &file, &alphas[j], 1) => 1;
-#        }
-#        lfs_file_close(&lfs, &file);
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "zzz", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    for (int j = 0; j < FILES; j++) {
-#        lfs_file_write(&lfs, &file, (const void*)"~", 1) => 1;
-#        lfs_file_sync(&lfs, &file) => 0;
-#
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#    lfs_file_close(&lfs, &file);
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "zzz") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == FILES);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "zzz", LFS_O_RDONLY) => 0;
-#    for (int i = 0; i < FILES; i++) {
-#        uint8_t buffer[1024];
-#        lfs_file_read(&lfs, &file, buffer, 1) => 1;
-#        assert(buffer[0] == '~');
-#    }
-#    lfs_file_close(&lfs, &file);
-#    
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_interspersed_remove_inconveniently]
-#defines.SIZE = [10, 100]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t files[3];
-#    lfs_file_open(&lfs, &files[0], "e", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_open(&lfs, &files[1], "f", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_open(&lfs, &files[2], "g", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#
-#    for (int i = 0; i < SIZE/2; i++) {
-#        lfs_file_write(&lfs, &files[0], (const void*)"e", 1) => 1;
-#        lfs_file_write(&lfs, &files[1], (const void*)"f", 1) => 1;
-#        lfs_file_write(&lfs, &files[2], (const void*)"g", 1) => 1;
-#    }
-#
-#    lfs_remove(&lfs, "f") => 0;
-#
-#    for (int i = 0; i < SIZE/2; i++) {
-#        lfs_file_write(&lfs, &files[0], (const void*)"e", 1) => 1;
-#        lfs_file_write(&lfs, &files[1], (const void*)"f", 1) => 1;
-#        lfs_file_write(&lfs, &files[2], (const void*)"g", 1) => 1;
-#    }
-#
-#    lfs_file_close(&lfs, &files[0]);
-#    lfs_file_close(&lfs, &files[1]);
-#    lfs_file_close(&lfs, &files[2]);
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "e") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == SIZE);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "g") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == SIZE);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &files[0], "e", LFS_O_RDONLY) => 0;
-#    lfs_file_open(&lfs, &files[1], "g", LFS_O_RDONLY) => 0;
-#    for (int i = 0; i < SIZE; i++) {
-#        uint8_t buffer[1024];
-#        lfs_file_read(&lfs, &files[0], buffer, 1) => 1;
-#        assert(buffer[0] == 'e');
-#        lfs_file_read(&lfs, &files[1], buffer, 1) => 1;
-#        assert(buffer[0] == 'g');
-#    }
-#    lfs_file_close(&lfs, &files[0]);
-#    lfs_file_close(&lfs, &files[1]);
-#    
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_interspersed_reentrant_files]
-#defines.SIZE = [10, 100]
-#defines.FILES = [4, 10, 26] 
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    lfs_file_t files[FILES];
-#    const char alphas[] = "abcdefghijklmnopqrstuvwxyz";
-#
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_file_open(&lfs, &files[j], path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    }
-#
-#    for (int i = 0; i < SIZE; i++) {
-#        for (int j = 0; j < FILES; j++) {
-#            lfs_ssize_t size = lfs_file_size(&lfs, &files[j]);
-#            assert(size >= 0);
-#            if ((int)size <= i) {
-#                lfs_file_write(&lfs, &files[j], &alphas[j], 1) => 1;
-#                lfs_file_sync(&lfs, &files[j]) => 0;
-#            }
-#        }
-#    }
-#
-#    for (int j = 0; j < FILES; j++) {
-#        lfs_file_close(&lfs, &files[j]);
-#    }
-#
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    struct lfs_info info;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        assert(strcmp(info.name, path) == 0);
-#        assert(info.type == LFS_TYPE_REG);
-#        assert(info.size == SIZE);
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    for (int j = 0; j < FILES; j++) {
-#        char path[1024];
-#        sprintf(path, "%c", alphas[j]);
-#        lfs_file_open(&lfs, &files[j], path, LFS_O_RDONLY) => 0;
-#    }
-#
-#    for (int i = 0; i < 10; i++) {
-#        for (int j = 0; j < FILES; j++) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &files[j], buffer, 1) => 1;
-#            assert(buffer[0] == alphas[j]);
-#        }
-#    }
-#
-#    for (int j = 0; j < FILES; j++) {
-#        lfs_file_close(&lfs, &files[j]);
-#    }
-#    
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_move.toml b/tests/test_move.toml
deleted file mode 100644
index ea913b90..00000000
--- a/tests/test_move.toml
+++ /dev/null
@@ -1,1897 +0,0 @@
-#[cases.test_move_file]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
-#    lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
-#    lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hello", "c/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hello") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 5+8+6);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_nop] # yes this is legal
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "hi") => 0;
-#    lfs_rename(&lfs, "hi", "hi") => 0;
-#    lfs_mkdir(&lfs, "hi/hi") => 0;
-#    lfs_rename(&lfs, "hi/hi", "hi/hi") => 0;
-#    lfs_mkdir(&lfs, "hi/hi/hi") => 0;
-#    lfs_rename(&lfs, "hi/hi/hi", "hi/hi/hi") => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "hi/hi/hi", &info) => 0;
-#    assert(strcmp(info.name, "hi") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_file_corrupt_source]
-#in = "lfs.c"
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
-#    lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
-#    lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hello", "c/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the source
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hello") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 5+8+6);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## move file corrupt source and dest
-#[cases.test_move_file_corrupt_source_dest]
-#in = "lfs.c"
-#if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
-#    lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
-#    lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hello", "c/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the source
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    // corrupt the destination
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hello") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 5+8+6);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_file_after_corrupt]
-#in = "lfs.c"
-#if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
-#    lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
-#    lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hello", "c/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the source
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    // corrupt the destination
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    // continue move
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hello", "c/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hello") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 5+8+6);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_reentrant_file]
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#    err = lfs_mkdir(&lfs, "a");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    err = lfs_mkdir(&lfs, "b");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    err = lfs_mkdir(&lfs, "c");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    err = lfs_mkdir(&lfs, "d");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    lfs_unmount(&lfs) => 0;
-#
-#    while (true) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        // there should never exist _2_ hello files
-#        int count = 0;
-#        struct lfs_info info;
-#        if (lfs_stat(&lfs, "a/hello", &info) == 0) {
-#            assert(strcmp(info.name, "hello") == 0);
-#            assert(info.type == LFS_TYPE_REG);
-#            assert(info.size == 5+8+6 || info.size == 0);
-#            count += 1;
-#        }
-#        if (lfs_stat(&lfs, "b/hello", &info) == 0) {
-#            assert(strcmp(info.name, "hello") == 0);
-#            assert(info.type == LFS_TYPE_REG);
-#            assert(info.size == 5+8+6);
-#            count += 1;
-#        }
-#        if (lfs_stat(&lfs, "c/hello", &info) == 0) {
-#            assert(strcmp(info.name, "hello") == 0);
-#            assert(info.type == LFS_TYPE_REG);
-#            assert(info.size == 5+8+6);
-#            count += 1;
-#        }
-#        if (lfs_stat(&lfs, "d/hello", &info) == 0) {
-#            assert(strcmp(info.name, "hello") == 0);
-#            assert(info.type == LFS_TYPE_REG);
-#            assert(info.size == 5+8+6);
-#            count += 1;
-#        }
-#        assert(count <= 1);
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        if (lfs_stat(&lfs, "a/hello", &info) == 0 && info.size > 0) {
-#            lfs_rename(&lfs, "a/hello", "b/hello") => 0;
-#        } else if (lfs_stat(&lfs, "b/hello", &info) == 0) {
-#            lfs_rename(&lfs, "b/hello", "c/hello") => 0;
-#        } else if (lfs_stat(&lfs, "c/hello", &info) == 0) {
-#            lfs_rename(&lfs, "c/hello", "d/hello") => 0;
-#        } else if (lfs_stat(&lfs, "d/hello", &info) == 0) {
-#            // success
-#            lfs_unmount(&lfs) => 0;
-#            break;
-#        } else {
-#            // create file
-#            lfs_file_t file;
-#            lfs_file_open(&lfs, &file, "a/hello",
-#                    LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#            lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
-#            lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
-#            lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#    }
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "d") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hello") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 5+8+6);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_dir]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_mkdir(&lfs, "a/hi") => 0;
-#    lfs_mkdir(&lfs, "a/hi/hola") => 0;
-#    lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
-#    lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hi", "c/hi") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hi") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "c/hi") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "bonjour") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hola") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "ohayo") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_dir_corrupt_source]
-#in = "lfs.c"
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_mkdir(&lfs, "a/hi") => 0;
-#    lfs_mkdir(&lfs, "a/hi/hola") => 0;
-#    lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
-#    lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hi", "c/hi") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the source
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hi") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "c/hi") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "bonjour") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hola") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "ohayo") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_dir_corrupt_source_dest]
-#in = "lfs.c"
-#if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_mkdir(&lfs, "a/hi") => 0;
-#    lfs_mkdir(&lfs, "a/hi/hola") => 0;
-#    lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
-#    lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hi", "c/hi") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the source
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    // corrupt the destination
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hi") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "a/hi") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "bonjour") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hola") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "ohayo") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "c/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_dir_after_corrupt]
-#in = "lfs.c"
-#if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_mkdir(&lfs, "a/hi") => 0;
-#    lfs_mkdir(&lfs, "a/hi/hola") => 0;
-#    lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
-#    lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hi", "c/hi") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the source
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    // corrupt the destination
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    // continue move
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hi", "c/hi") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "c") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hi") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "c/hi") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "bonjour") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hola") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "ohayo") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_reentrant_dir]
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#    err = lfs_mkdir(&lfs, "a");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    err = lfs_mkdir(&lfs, "b");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    err = lfs_mkdir(&lfs, "c");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    err = lfs_mkdir(&lfs, "d");
-#    assert(!err || err == LFS_ERR_EXIST);
-#    lfs_unmount(&lfs) => 0;
-#
-#    while (true) {
-#        lfs_mount(&lfs, cfg) => 0;
-#        // there should never exist _2_ hi directories
-#        int count = 0;
-#        struct lfs_info info;
-#        if (lfs_stat(&lfs, "a/hi", &info) == 0) {
-#            assert(strcmp(info.name, "hi") == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#            count += 1;
-#        }
-#        if (lfs_stat(&lfs, "b/hi", &info) == 0) {
-#            assert(strcmp(info.name, "hi") == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#            count += 1;
-#        }
-#        if (lfs_stat(&lfs, "c/hi", &info) == 0) {
-#            assert(strcmp(info.name, "hi") == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#            count += 1;
-#        }
-#        if (lfs_stat(&lfs, "d/hi", &info) == 0) {
-#            assert(strcmp(info.name, "hi") == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#            count += 1;
-#        }
-#        assert(count <= 1);
-#        lfs_unmount(&lfs) => 0;
-#
-#        lfs_mount(&lfs, cfg) => 0;
-#        if (lfs_stat(&lfs, "a/hi", &info) == 0) {
-#            lfs_rename(&lfs, "a/hi", "b/hi") => 0;
-#        } else if (lfs_stat(&lfs, "b/hi", &info) == 0) {
-#            lfs_rename(&lfs, "b/hi", "c/hi") => 0;
-#        } else if (lfs_stat(&lfs, "c/hi", &info) == 0) {
-#            lfs_rename(&lfs, "c/hi", "d/hi") => 0;
-#        } else if (lfs_stat(&lfs, "d/hi", &info) == 0) {
-#            lfs_unmount(&lfs) => 0;
-#            break; // success
-#        } else {
-#            // create dir and rename for atomicity
-#            err = lfs_mkdir(&lfs, "temp");
-#            assert(!err || err == LFS_ERR_EXIST);
-#            err = lfs_mkdir(&lfs, "temp/hola");
-#            assert(!err || err == LFS_ERR_EXIST);
-#            err = lfs_mkdir(&lfs, "temp/bonjour");
-#            assert(!err || err == LFS_ERR_EXIST);
-#            err = lfs_mkdir(&lfs, "temp/ohayo");
-#            assert(!err || err == LFS_ERR_EXIST);
-#            lfs_rename(&lfs, "temp", "a/hi") => 0;
-#        }
-#        lfs_unmount(&lfs) => 0;
-#    }
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "a") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_dir_open(&lfs, &dir, "d") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hi") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "c/hi") => LFS_ERR_NOENT;
-#    lfs_dir_open(&lfs, &dir, "d/hi") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "bonjour") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "hola") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "ohayo") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_move_state_stealing]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "a") => 0;
-#    lfs_mkdir(&lfs, "b") => 0;
-#    lfs_mkdir(&lfs, "c") => 0;
-#    lfs_mkdir(&lfs, "d") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
-#    lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
-#    lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "a/hello", "b/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "b/hello", "c/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_rename(&lfs, "c/hello", "d/hello") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_remove(&lfs, "b") => 0;
-#    lfs_remove(&lfs, "c") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "a", &info) => 0;
-#    lfs_stat(&lfs, "b", &info) => LFS_ERR_NOENT;
-#    lfs_stat(&lfs, "c", &info) => LFS_ERR_NOENT;
-#    lfs_stat(&lfs, "d", &info) => 0;
-#    lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
-#    lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 5) => 5;
-#    memcmp(buffer, "hola\n", 5) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 8) => 8;
-#    memcmp(buffer, "bonjour\n", 8) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 6) => 6;
-#    memcmp(buffer, "ohayo\n", 6) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## Other specific corner cases
-#
-## create + delete in same commit with neighbors
-#[cases.test_move_create_delete_same]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // littlefs keeps files sorted, so we know the order these will be in
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.1", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/2.in_between",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.2", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/4.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.3", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_t files[3];
-#    lfs_file_open(&lfs, &files[0], "0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "2.in_between",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "4.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.4", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.5", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.6", 7) => 7;
-#
-#    // rename file while everything is open, this triggers both
-#    // a create and delete simultaneously
-#    lfs_rename(&lfs, "/1.move_me", "/3.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#
-#    // check that nothing was corrupted
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.in_between") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "3.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "4.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.4") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.5") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.6") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // now move back
-#    lfs_file_open(&lfs, &files[0], "0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "2.in_between",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "4.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.7", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.8", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.9", 7) => 7;
-#
-#    // rename file while everything is open, this triggers both
-#    // a create and delete simultaneously
-#    lfs_rename(&lfs, "/3.move_me", "/1.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#
-#    // and check that nothing was corrupted again
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "1.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.in_between") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "4.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.7") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.8") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.9") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## create + delete + delete in same commit with neighbors
-#[cases.test_move_create_delete_delete_same]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // littlefs keeps files sorted, so we know the order these will be in
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/3.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "remove me",
-#            sizeof("remove me")) => sizeof("remove me");
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.1", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/2.in_between",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.2", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/4.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.3", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_t files[3];
-#    lfs_file_open(&lfs, &files[0], "0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "2.in_between",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "4.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.4", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.5", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.6", 7) => 7;
-#
-#    // rename file while everything is open, this triggers both
-#    // a create and delete simultaneously
-#    lfs_rename(&lfs, "/1.move_me", "/3.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#
-#    // check that nothing was corrupted
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.in_between") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "3.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "4.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.4") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.5") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.6") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // now move back
-#    lfs_file_open(&lfs, &file, "/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "remove me",
-#            sizeof("remove me")) => sizeof("remove me");
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &files[0], "0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "2.in_between",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "4.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.7", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.8", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.9", 7) => 7;
-#
-#    // rename file while everything is open, this triggers both
-#    // a create and delete simultaneously
-#    lfs_rename(&lfs, "/3.move_me", "/1.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#
-#    // and check that nothing was corrupted again
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "1.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.in_between") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "4.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.7") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.8") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.9") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## create + delete in different dirs with neighbors
-#[cases.test_move_create_delete_different]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // littlefs keeps files sorted, so we know the order these will be in
-#    lfs_mkdir(&lfs, "/dir.1") => 0;
-#    lfs_mkdir(&lfs, "/dir.2") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "/dir.1/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.2/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "remove me",
-#            sizeof("remove me")) => sizeof("remove me");
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/dir.1/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.1", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.1/2.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.2", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/dir.2/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.3", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.2/2.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.4", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_t files[4];
-#    lfs_file_open(&lfs, &files[0], "/dir.1/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "/dir.1/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "/dir.2/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[3], "/dir.2/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.5", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.6", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.7", 7) => 7;
-#    lfs_file_write(&lfs, &files[3], "test.8", 7) => 7;
-#
-#    // rename file while everything is open, this triggers both
-#    // a create and delete as it overwrites the destination file
-#    lfs_rename(&lfs, "/dir.1/1.move_me", "/dir.2/1.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#    lfs_file_close(&lfs, &files[3]) => 0;
-#
-#    // check that nothing was corrupted
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "dir.1") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "dir.2") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/dir.1") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/dir.2") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "1.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/dir.1/0.before", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.5") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.1/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.6") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.2/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.7") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.2/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.8") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // now move back
-#    lfs_file_open(&lfs, &file, "/dir.1/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "remove me",
-#            sizeof("remove me")) => sizeof("remove me");
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &files[0], "/dir.1/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "/dir.1/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "/dir.2/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[3], "/dir.2/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.9", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.a", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.b", 7) => 7;
-#    lfs_file_write(&lfs, &files[3], "test.c", 7) => 7;
-#
-#    // rename file while everything is open, this triggers both
-#    // a create and delete simultaneously
-#    lfs_rename(&lfs, "/dir.2/1.move_me", "/dir.1/1.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#    lfs_file_close(&lfs, &files[3]) => 0;
-#
-#    // and check that nothing was corrupted again
-#    lfs_dir_open(&lfs, &dir, "/") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "dir.1") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "dir.2") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/dir.1") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "1.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 0);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/dir.2") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/dir.1/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.9") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.1/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.a") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.2/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.b") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/dir.2/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.c") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## move fix in relocation
-#[cases.test_move_fix_relocation]
-#in = "lfs.c"
-#defines.RELOCATIONS = 'range(4)'
-#defines.ERASE_CYCLES = 0xffffffff
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    lfs_mkdir(&lfs, "/parent") => 0;
-#    lfs_mkdir(&lfs, "/parent/child") => 0;
-#
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "/parent/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "move me",
-#            sizeof("move me")) => sizeof("move me");
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/parent/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.1", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/2.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.2", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.3", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/2.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.4", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_t files[4];
-#    lfs_file_open(&lfs, &files[0], "/parent/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "/parent/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "/parent/child/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[3], "/parent/child/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.5", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.6", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.7", 7) => 7;
-#    lfs_file_write(&lfs, &files[3], "test.8", 7) => 7;
-#
-#    // force specific directories to relocate
-#    if (RELOCATIONS & 0x1) {
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "/parent");
-#        lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
-#        lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#    }
-#    if (RELOCATIONS & 0x2) {
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "/parent/child");
-#        lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
-#        lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#    }
-#
-#    // ok, now we move the file, this creates a move that needs to be
-#    // fixed, possibly in a metadata-pair that needs to be relocated
-#    //
-#    // the worst case is if we need to relocate and we need to implicit
-#    // fix the move in our parent before it falls out of date
-#    lfs_rename(&lfs, "/parent/1.move_me", "/parent/child/1.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#    lfs_file_close(&lfs, &files[3]) => 0;
-#
-#    // check that nothing was corrupted
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "/parent") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "child") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/parent/child") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "1.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == sizeof("move me"));
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/parent/0.before", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.5") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.6") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.7") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.8") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## move fix in relocation with predecessor
-#[cases.test_move_fix_relocation_predecessor]
-#in = "lfs.c"
-#defines.RELOCATIONS = 'range(8)'
-#defines.ERASE_CYCLES = 0xffffffff
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    lfs_mkdir(&lfs, "/parent") => 0;
-#    lfs_mkdir(&lfs, "/parent/child") => 0;
-#    lfs_mkdir(&lfs, "/parent/sibling") => 0;
-#
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "/parent/sibling/1.move_me",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "move me",
-#            sizeof("move me")) => sizeof("move me");
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/parent/sibling/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.1", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/sibling/2.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.2", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/0.before",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.3", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/2.after",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    lfs_file_write(&lfs, &file, "test.4", 7) => 7;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_t files[4];
-#    lfs_file_open(&lfs, &files[0], "/parent/sibling/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[1], "/parent/sibling/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[2], "/parent/child/0.before",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_open(&lfs, &files[3], "/parent/child/2.after",
-#            LFS_O_WRONLY | LFS_O_TRUNC) => 0;
-#    lfs_file_write(&lfs, &files[0], "test.5", 7) => 7;
-#    lfs_file_write(&lfs, &files[1], "test.6", 7) => 7;
-#    lfs_file_write(&lfs, &files[2], "test.7", 7) => 7;
-#    lfs_file_write(&lfs, &files[3], "test.8", 7) => 7;
-#
-#    // force specific directories to relocate
-#    if (RELOCATIONS & 0x1) {
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "/parent");
-#        lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
-#        lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#    }
-#    if (RELOCATIONS & 0x2) {
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "/parent/sibling");
-#        lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
-#        lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#    }
-#    if (RELOCATIONS & 0x4) {
-#        lfs_dir_t dir;
-#        lfs_dir_open(&lfs, &dir, "/parent/child");
-#        lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
-#        lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#    }
-#
-#    // ok, now we move the file, this creates a move that needs to be
-#    // fixed, possibly in a metadata-pair that needs to be relocated
-#    //
-#    // and now relocations can force us to need to fix our move in either
-#    // the parent or child before things break
-#    lfs_rename(&lfs,
-#            "/parent/sibling/1.move_me",
-#            "/parent/child/1.move_me") => 0;
-#
-#    lfs_file_close(&lfs, &files[0]) => 0;
-#    lfs_file_close(&lfs, &files[1]) => 0;
-#    lfs_file_close(&lfs, &files[2]) => 0;
-#    lfs_file_close(&lfs, &files[3]) => 0;
-#
-#    // check that nothing was corrupted
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "/parent") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "child") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "sibling") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/parent/sibling") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_dir_open(&lfs, &dir, "/parent/child") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, ".") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "..") == 0);
-#    assert(info.type == LFS_TYPE_DIR);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "0.before") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "1.move_me") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == sizeof("move me"));
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    assert(strcmp(info.name, "2.after") == 0);
-#    assert(info.type == LFS_TYPE_REG);
-#    assert(info.size == 7);
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#
-#    lfs_file_open(&lfs, &file, "/parent/sibling/0.before", LFS_O_RDONLY) => 0;
-#    uint8_t buffer[1024];
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.5") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/sibling/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.6") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/0.before", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.7") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_file_open(&lfs, &file, "/parent/child/2.after", LFS_O_RDONLY) => 0;
-#    lfs_file_read(&lfs, &file, buffer, 7) => 7;
-#    assert(strcmp((char*)buffer, "test.8") == 0);
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_orphans.toml b/tests/test_orphans.toml
deleted file mode 100644
index 4691f5b2..00000000
--- a/tests/test_orphans.toml
+++ /dev/null
@@ -1,129 +0,0 @@
-#[cases.test_orphans_normal]
-#in = "lfs.c"
-#if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "parent") => 0;
-#    lfs_mkdir(&lfs, "parent/orphan") => 0;
-#    lfs_mkdir(&lfs, "parent/child") => 0;
-#    lfs_remove(&lfs, "parent/orphan") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // corrupt the child's most recent commit, this should be the update
-#    // to the linked-list entry, which should orphan the orphan. Note this
-#    // makes a lot of assumptions about the remove operation.
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "parent/child") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    uint8_t buffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    int off = BLOCK_SIZE-1;
-#    while (off >= 0 && buffer[off] == ERASE_VALUE) {
-#        off -= 1;
-#    }
-#    memset(&buffer[off-3], BLOCK_SIZE, 3);
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
-#    cfg->sync(cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    struct lfs_info info;
-#    lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
-#    lfs_stat(&lfs, "parent/child", &info) => 0;
-#    lfs_fs_size(&lfs) => 8;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
-#    lfs_stat(&lfs, "parent/child", &info) => 0;
-#    lfs_fs_size(&lfs) => 8;
-#    // this mkdir should both create a dir and deorphan, so size
-#    // should be unchanged
-#    lfs_mkdir(&lfs, "parent/otherchild") => 0;
-#    lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
-#    lfs_stat(&lfs, "parent/child", &info) => 0;
-#    lfs_stat(&lfs, "parent/otherchild", &info) => 0;
-#    lfs_fs_size(&lfs) => 8;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
-#    lfs_stat(&lfs, "parent/child", &info) => 0;
-#    lfs_stat(&lfs, "parent/otherchild", &info) => 0;
-#    lfs_fs_size(&lfs) => 8;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## reentrant testing for orphans, basically just spam mkdir/remove
-#[cases.test_orphans_reentrant]
-#reentrant = true
-## TODO fix this case, caused by non-DAG trees
-#if = '!(DEPTH == 3 && CACHE_SIZE != 64)'
-#defines = [
-#    {FILES=6,  DEPTH=1, CYCLES=20},
-#    {FILES=26, DEPTH=1, CYCLES=20},
-#    {FILES=3,  DEPTH=3, CYCLES=20},
-#]
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#
-#    uint32_t prng = 1;
-#    const char alpha[] = "abcdefghijklmnopqrstuvwxyz";
-#    for (unsigned i = 0; i < CYCLES; i++) {
-#        // create random path
-#        char full_path[256];
-#        for (unsigned d = 0; d < DEPTH; d++) {
-#            sprintf(&full_path[2*d], "/%c", alpha[TEST_PRNG(&prng) % FILES]);
-#        }
-#
-#        // if it does not exist, we create it, else we destroy
-#        struct lfs_info info;
-#        int res = lfs_stat(&lfs, full_path, &info);
-#        if (res == LFS_ERR_NOENT) {
-#            // create each directory in turn, ignore if dir already exists
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                err = lfs_mkdir(&lfs, path);
-#                assert(!err || err == LFS_ERR_EXIST);
-#            }
-#
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                lfs_stat(&lfs, path, &info) => 0;
-#                assert(strcmp(info.name, &path[2*d+1]) == 0);
-#                assert(info.type == LFS_TYPE_DIR);
-#            }
-#        } else {
-#            // is valid dir?
-#            assert(strcmp(info.name, &full_path[2*(DEPTH-1)+1]) == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#
-#            // try to delete path in reverse order, ignore if dir is not empty
-#            for (int d = DEPTH-1; d >= 0; d--) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                err = lfs_remove(&lfs, path);
-#                assert(!err || err == LFS_ERR_NOTEMPTY);
-#            }
-#
-#            lfs_stat(&lfs, full_path, &info) => LFS_ERR_NOENT;
-#        }
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
diff --git a/tests/test_powerloss.toml b/tests/test_powerloss.toml
index 4f4fbd99..dc37bc81 100644
--- a/tests/test_powerloss.toml
+++ b/tests/test_powerloss.toml
@@ -816,190 +816,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-
-
-
-
-## There are already a number of tests that test general operations under
-## power-loss (see the reentrant attribute). These tests are for explicitly
-## testing specific corner cases.
-#
-## only a revision count
-#[cases.test_powerloss_only_rev]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "notebook") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "notebook/paper",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    char buffer[256];
-#    strcpy(buffer, "hello");
-#    lfs_size_t size = strlen("hello");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#        lfs_file_sync(&lfs, &file) => 0;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    char rbuffer[256];
-#    lfs_file_open(&lfs, &file, "notebook/paper", LFS_O_RDONLY) => 0;
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // get pair/rev count
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "notebook") => 0;
-#    lfs_block_t pair[2] = {dir.m.pair[0], dir.m.pair[1]};
-#    uint32_t rev = dir.m.rev;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // write just the revision count
-#    uint8_t bbuffer[BLOCK_SIZE];
-#    cfg->read(cfg, pair[1], 0, bbuffer, BLOCK_SIZE) => 0;
-#
-#    memcpy(bbuffer, &(uint32_t){lfs_tole32(rev+1)}, sizeof(uint32_t));
-#
-#    cfg->erase(cfg, pair[1]) => 0;
-#    cfg->prog(cfg, pair[1], 0, bbuffer, BLOCK_SIZE) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // can read?
-#    lfs_file_open(&lfs, &file, "notebook/paper", LFS_O_RDONLY) => 0;
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // can write?
-#    lfs_file_open(&lfs, &file, "notebook/paper",
-#            LFS_O_WRONLY | LFS_O_APPEND) => 0;
-#    strcpy(buffer, "goodbye");
-#    size = strlen("goodbye");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#        lfs_file_sync(&lfs, &file) => 0;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "notebook/paper", LFS_O_RDONLY) => 0;
-#    strcpy(buffer, "hello");
-#    size = strlen("hello");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    strcpy(buffer, "goodbye");
-#    size = strlen("goodbye");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## partial prog, may not be byte in order!
-#[cases.test_powerloss_partial_prog]
-#if = "PROG_SIZE < BLOCK_SIZE"
-#defines.BYTE_OFF = ["0", "PROG_SIZE-1", "PROG_SIZE/2"]
-#defines.BYTE_VALUE = [0x33, 0xcc]
-#in = "lfs.c"
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_mkdir(&lfs, "notebook") => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "notebook/paper",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    char buffer[256];
-#    strcpy(buffer, "hello");
-#    lfs_size_t size = strlen("hello");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#        lfs_file_sync(&lfs, &file) => 0;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    char rbuffer[256];
-#    lfs_file_open(&lfs, &file, "notebook/paper", LFS_O_RDONLY) => 0;
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // imitate a partial prog, value should not matter, if littlefs
-#    // doesn't notice the partial prog testbd will assert
-#
-#    // get offset to next prog
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    lfs_dir_open(&lfs, &dir, "notebook") => 0;
-#    lfs_block_t block = dir.m.pair[0];
-#    lfs_off_t off = dir.m.off;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // tweak byte
-#    uint8_t bbuffer[BLOCK_SIZE];
-#    cfg->read(cfg, block, 0, bbuffer, BLOCK_SIZE) => 0;
-#
-#    bbuffer[off + BYTE_OFF] = BYTE_VALUE;
-#
-#    cfg->erase(cfg, block) => 0;
-#    cfg->prog(cfg, block, 0, bbuffer, BLOCK_SIZE) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    // can read?
-#    lfs_file_open(&lfs, &file, "notebook/paper", LFS_O_RDONLY) => 0;
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    // can write?
-#    lfs_file_open(&lfs, &file, "notebook/paper",
-#            LFS_O_WRONLY | LFS_O_APPEND) => 0;
-#    strcpy(buffer, "goodbye");
-#    size = strlen("goodbye");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#        lfs_file_sync(&lfs, &file) => 0;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "notebook/paper", LFS_O_RDONLY) => 0;
-#    strcpy(buffer, "hello");
-#    size = strlen("hello");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    strcpy(buffer, "goodbye");
-#    size = strlen("goodbye");
-#    for (int i = 0; i < 5; i++) {
-#        lfs_file_read(&lfs, &file, rbuffer, size) => size;
-#        assert(memcmp(rbuffer, buffer, size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_rbyd.toml b/tests/test_rbyd.toml
index ecc1f1bf..682197bb 100644
--- a/tests/test_rbyd.toml
+++ b/tests/test_rbyd.toml
@@ -122,11 +122,6 @@ code = '''
     lfsr_rbyd_fetch(&lfs, &rbyd, rbyd.blocks[0], 0) => 0;
 '''
 
-# [cases.test_rbyd_atomic_fetchmatch]
-# [cases.test_rbyd_fetchmatch]
-
-# TODO we really need to test dense keys...
-
 [cases.test_rbyd_atomic_lookup]
 in = 'lfs.c'
 code = '''
diff --git a/tests/test_relocations.toml b/tests/test_relocations.toml
index cdaf1dc9..2c015bed 100644
--- a/tests/test_relocations.toml
+++ b/tests/test_relocations.toml
@@ -2051,348 +2051,3 @@ code = '''
     lfsr_unmount(&lfs) => 0;
 '''
 
-
-
-## specific corner cases worth explicitly testing for
-#[cases.test_relocations_dangling_split_dir]
-#defines.ITERATIONS = 20
-#defines.COUNT = 10
-#defines.BLOCK_CYCLES = [8, 1]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    // fill up filesystem so only ~16 blocks are left
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "padding", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    uint8_t buffer[512];
-#    memset(buffer, 0, 512);
-#    while (BLOCK_COUNT - lfs_fs_size(&lfs) > 16) {
-#        lfs_file_write(&lfs, &file, buffer, 512) => 512;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    // make a child dir to use in bounded space
-#    lfs_mkdir(&lfs, "child") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (unsigned j = 0; j < ITERATIONS; j++) {
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#            lfs_file_open(&lfs, &file, path, LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#
-#        lfs_dir_t dir;
-#        struct lfs_info info;
-#        lfs_dir_open(&lfs, &dir, "child") => 0;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "test%03d_loooooooooooooooooong_name", i);
-#            lfs_dir_read(&lfs, &dir, &info) => 1;
-#            strcmp(info.name, path) => 0;
-#        }
-#        lfs_dir_read(&lfs, &dir, &info) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#
-#        if (j == (unsigned)ITERATIONS-1) {
-#            break;
-#        }
-#
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#            lfs_remove(&lfs, path) => 0;
-#        }
-#    }
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_dir_t dir;
-#    struct lfs_info info;
-#    lfs_dir_open(&lfs, &dir, "child") => 0;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    lfs_dir_read(&lfs, &dir, &info) => 1;
-#    for (unsigned i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "test%03d_loooooooooooooooooong_name", i);
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        strcmp(info.name, path) => 0;
-#    }
-#    lfs_dir_read(&lfs, &dir, &info) => 0;
-#    lfs_dir_close(&lfs, &dir) => 0;
-#    for (unsigned i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#        lfs_remove(&lfs, path) => 0;
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-#[cases.test_relocations_outdated_head]
-#defines.ITERATIONS = 20
-#defines.COUNT = 10
-#defines.BLOCK_CYCLES = [8, 1]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    // fill up filesystem so only ~16 blocks are left
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "padding", LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#    uint8_t buffer[512];
-#    memset(buffer, 0, 512);
-#    while (BLOCK_COUNT - lfs_fs_size(&lfs) > 16) {
-#        lfs_file_write(&lfs, &file, buffer, 512) => 512;
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    // make a child dir to use in bounded space
-#    lfs_mkdir(&lfs, "child") => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    for (unsigned j = 0; j < ITERATIONS; j++) {
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#            lfs_file_open(&lfs, &file, path, LFS_O_CREAT | LFS_O_WRONLY) => 0;
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#
-#        lfs_dir_t dir;
-#        struct lfs_info info;
-#        lfs_dir_open(&lfs, &dir, "child") => 0;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "test%03d_loooooooooooooooooong_name", i);
-#            lfs_dir_read(&lfs, &dir, &info) => 1;
-#            strcmp(info.name, path) => 0;
-#            info.size => 0;
-#
-#            sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#            lfs_file_open(&lfs, &file, path, LFS_O_WRONLY) => 0;
-#            lfs_file_write(&lfs, &file, "hi", 2) => 2;
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_dir_read(&lfs, &dir, &info) => 0;
-#
-#        lfs_dir_rewind(&lfs, &dir) => 0;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "test%03d_loooooooooooooooooong_name", i);
-#            lfs_dir_read(&lfs, &dir, &info) => 1;
-#            strcmp(info.name, path) => 0;
-#            info.size => 2;
-#
-#            sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#            lfs_file_open(&lfs, &file, path, LFS_O_WRONLY) => 0;
-#            lfs_file_write(&lfs, &file, "hi", 2) => 2;
-#            lfs_file_close(&lfs, &file) => 0;
-#        }
-#        lfs_dir_read(&lfs, &dir, &info) => 0;
-#
-#        lfs_dir_rewind(&lfs, &dir) => 0;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        lfs_dir_read(&lfs, &dir, &info) => 1;
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "test%03d_loooooooooooooooooong_name", i);
-#            lfs_dir_read(&lfs, &dir, &info) => 1;
-#            strcmp(info.name, path) => 0;
-#            info.size => 2;
-#        }
-#        lfs_dir_read(&lfs, &dir, &info) => 0;
-#        lfs_dir_close(&lfs, &dir) => 0;
-#
-#        for (unsigned i = 0; i < COUNT; i++) {
-#            char path[1024];
-#            sprintf(path, "child/test%03d_loooooooooooooooooong_name", i);
-#            lfs_remove(&lfs, path) => 0;
-#        }
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## reentrant testing for relocations, this is the same as the
-## orphan testing, except here we also set block_cycles so that
-## almost every tree operation needs a relocation
-#[cases.test_relocations_reentrant]
-#reentrant = true
-## TODO fix this case, caused by non-DAG trees
-## NOTE the second condition is required
-#if = '!(DEPTH == 3 && CACHE_SIZE != 64) && 2*FILES < BLOCK_COUNT'
-#defines = [
-#    {FILES=6,  DEPTH=1, CYCLES=20, BLOCK_CYCLES=1},
-#    {FILES=26, DEPTH=1, CYCLES=20, BLOCK_CYCLES=1},
-#    {FILES=3,  DEPTH=3, CYCLES=20, BLOCK_CYCLES=1},
-#]
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#
-#    uint32_t prng = 1;
-#    const char alpha[] = "abcdefghijklmnopqrstuvwxyz";
-#    for (unsigned i = 0; i < CYCLES; i++) {
-#        // create random path
-#        char full_path[256];
-#        for (unsigned d = 0; d < DEPTH; d++) {
-#            sprintf(&full_path[2*d], "/%c", alpha[TEST_PRNG(&prng) % FILES]);
-#        }
-#
-#        // if it does not exist, we create it, else we destroy
-#        struct lfs_info info;
-#        int res = lfs_stat(&lfs, full_path, &info);
-#        if (res == LFS_ERR_NOENT) {
-#            // create each directory in turn, ignore if dir already exists
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                err = lfs_mkdir(&lfs, path);
-#                assert(!err || err == LFS_ERR_EXIST);
-#            }
-#
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                lfs_stat(&lfs, path, &info) => 0;
-#                assert(strcmp(info.name, &path[2*d+1]) == 0);
-#                assert(info.type == LFS_TYPE_DIR);
-#            }
-#        } else {
-#            // is valid dir?
-#            assert(strcmp(info.name, &full_path[2*(DEPTH-1)+1]) == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#
-#            // try to delete path in reverse order, ignore if dir is not empty
-#            for (unsigned d = DEPTH-1; d+1 > 0; d--) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                err = lfs_remove(&lfs, path);
-#                assert(!err || err == LFS_ERR_NOTEMPTY);
-#            }
-#
-#            lfs_stat(&lfs, full_path, &info) => LFS_ERR_NOENT;
-#        }
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## reentrant testing for relocations, but now with random renames!
-#[cases.test_relocations_reentrant_renames]
-#reentrant = true
-## TODO fix this case, caused by non-DAG trees
-## NOTE the second condition is required
-#if = '!(DEPTH == 3 && CACHE_SIZE != 64) && 2*FILES < BLOCK_COUNT'
-#defines = [
-#    {FILES=6,  DEPTH=1, CYCLES=20, BLOCK_CYCLES=1},
-#    {FILES=26, DEPTH=1, CYCLES=20, BLOCK_CYCLES=1},
-#    {FILES=3,  DEPTH=3, CYCLES=20, BLOCK_CYCLES=1},
-#]
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#
-#    uint32_t prng = 1;
-#    const char alpha[] = "abcdefghijklmnopqrstuvwxyz";
-#    for (unsigned i = 0; i < CYCLES; i++) {
-#        // create random path
-#        char full_path[256];
-#        for (unsigned d = 0; d < DEPTH; d++) {
-#            sprintf(&full_path[2*d], "/%c", alpha[TEST_PRNG(&prng) % FILES]);
-#        }
-#
-#        // if it does not exist, we create it, else we destroy
-#        struct lfs_info info;
-#        int res = lfs_stat(&lfs, full_path, &info);
-#        assert(!res || res == LFS_ERR_NOENT);
-#        if (res == LFS_ERR_NOENT) {
-#            // create each directory in turn, ignore if dir already exists
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                err = lfs_mkdir(&lfs, path);
-#                assert(!err || err == LFS_ERR_EXIST);
-#            }
-#
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                char path[1024];
-#                strcpy(path, full_path);
-#                path[2*d+2] = '\0';
-#                lfs_stat(&lfs, path, &info) => 0;
-#                assert(strcmp(info.name, &path[2*d+1]) == 0);
-#                assert(info.type == LFS_TYPE_DIR);
-#            }
-#        } else {
-#            assert(strcmp(info.name, &full_path[2*(DEPTH-1)+1]) == 0);
-#            assert(info.type == LFS_TYPE_DIR);
-#
-#            // create new random path
-#            char new_path[256];
-#            for (unsigned d = 0; d < DEPTH; d++) {
-#                sprintf(&new_path[2*d], "/%c", alpha[TEST_PRNG(&prng) % FILES]);
-#            }
-#
-#            // if new path does not exist, rename, otherwise destroy
-#            res = lfs_stat(&lfs, new_path, &info);
-#            assert(!res || res == LFS_ERR_NOENT);
-#            if (res == LFS_ERR_NOENT) {
-#                // stop once some dir is renamed
-#                for (unsigned d = 0; d < DEPTH; d++) {
-#                    char path[1024];
-#                    strcpy(&path[2*d], &full_path[2*d]);
-#                    path[2*d+2] = '\0';
-#                    strcpy(&path[128+2*d], &new_path[2*d]);
-#                    path[128+2*d+2] = '\0';
-#                    err = lfs_rename(&lfs, path, path+128);
-#                    assert(!err || err == LFS_ERR_NOTEMPTY);
-#                    if (!err) {
-#                        strcpy(path, path+128);
-#                    }
-#                }
-#
-#                for (unsigned d = 0; d < DEPTH; d++) {
-#                    char path[1024];
-#                    strcpy(path, new_path);
-#                    path[2*d+2] = '\0';
-#                    lfs_stat(&lfs, path, &info) => 0;
-#                    assert(strcmp(info.name, &path[2*d+1]) == 0);
-#                    assert(info.type == LFS_TYPE_DIR);
-#                }
-#                
-#                lfs_stat(&lfs, full_path, &info) => LFS_ERR_NOENT;
-#            } else {
-#                // try to delete path in reverse order,
-#                // ignore if dir is not empty
-#                for (unsigned d = DEPTH-1; d+1 > 0; d--) {
-#                    char path[1024];
-#                    strcpy(path, full_path);
-#                    path[2*d+2] = '\0';
-#                    err = lfs_remove(&lfs, path);
-#                    assert(!err || err == LFS_ERR_NOTEMPTY);
-#                }
-#
-#                lfs_stat(&lfs, full_path, &info) => LFS_ERR_NOENT;
-#            }
-#        }
-#    }
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_seek.toml b/tests/test_seek.toml
deleted file mode 100644
index 98f6c14d..00000000
--- a/tests/test_seek.toml
+++ /dev/null
@@ -1,403 +0,0 @@
-#
-## simple file seek
-#[cases.test_seek_read]
-#defines = [
-#    {COUNT=132, SKIP=4},
-#    {COUNT=132, SKIP=128},
-#    {COUNT=200, SKIP=10},
-#    {COUNT=200, SKIP=100},
-#    {COUNT=4,   SKIP=1},
-#    {COUNT=4,   SKIP=2},
-#]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "kitty",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    size_t size = strlen("kittycatcat");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "kittycatcat", size);
-#    for (int j = 0; j < COUNT; j++) {
-#        lfs_file_write(&lfs, &file, buffer, size);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_RDONLY) => 0;
-#
-#    lfs_soff_t pos = -1;
-#    size = strlen("kittycatcat");
-#    for (int i = 0; i < SKIP; i++) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "kittycatcat", size) => 0;
-#        pos = lfs_file_tell(&lfs, &file);
-#    }
-#    assert(pos >= 0);
-#
-#    lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_rewind(&lfs, &file) => 0;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, size, LFS_SEEK_CUR) => 3*size;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, -size, LFS_SEEK_CUR) => pos;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, -size, LFS_SEEK_END) >= 0 => 1;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    size = lfs_file_size(&lfs, &file);
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## simple file seek and write
-#[cases.test_seek_write]
-#defines = [
-#    {COUNT=132, SKIP=4},
-#    {COUNT=132, SKIP=128},
-#    {COUNT=200, SKIP=10},
-#    {COUNT=200, SKIP=100},
-#    {COUNT=4,   SKIP=1},
-#    {COUNT=4,   SKIP=2},
-#]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "kitty",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    size_t size = strlen("kittycatcat");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "kittycatcat", size);
-#    for (int j = 0; j < COUNT; j++) {
-#        lfs_file_write(&lfs, &file, buffer, size);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_RDWR) => 0;
-#
-#    lfs_soff_t pos = -1;
-#    size = strlen("kittycatcat");
-#    for (int i = 0; i < SKIP; i++) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "kittycatcat", size) => 0;
-#        pos = lfs_file_tell(&lfs, &file);
-#    }
-#    assert(pos >= 0);
-#
-#    memcpy(buffer, "doggodogdog", size);
-#    lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
-#    lfs_file_write(&lfs, &file, buffer, size) => size;
-#
-#    lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "doggodogdog", size) => 0;
-#
-#    lfs_file_rewind(&lfs, &file) => 0;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, pos, LFS_SEEK_SET) => pos;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "doggodogdog", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, -size, LFS_SEEK_END) >= 0 => 1;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "kittycatcat", size) => 0;
-#
-#    size = lfs_file_size(&lfs, &file);
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_CUR) => size;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## boundary seek and writes
-#[cases.test_seek_boundary_write]
-#defines.COUNT = 132
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "kitty",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    size_t size = strlen("kittycatcat");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "kittycatcat", size);
-#    for (int j = 0; j < COUNT; j++) {
-#        lfs_file_write(&lfs, &file, buffer, size);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_RDWR) => 0;
-#
-#    size = strlen("hedgehoghog");
-#    const lfs_soff_t offsets[] = {512, 1020, 513, 1021, 511, 1019, 1441};
-#
-#    for (unsigned i = 0; i < sizeof(offsets) / sizeof(offsets[0]); i++) {
-#        lfs_soff_t off = offsets[i];
-#        memcpy(buffer, "hedgehoghog", size);
-#        lfs_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#        lfs_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hedgehoghog", size) => 0;
-#
-#        lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "kittycatcat", size) => 0;
-#
-#        lfs_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hedgehoghog", size) => 0;
-#
-#        lfs_file_sync(&lfs, &file) => 0;
-#
-#        lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "kittycatcat", size) => 0;
-#
-#        lfs_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hedgehoghog", size) => 0;
-#    }
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## out of bounds seek
-#[cases.test_seek_out_of_bounds]
-#defines = [
-#    {COUNT=132, SKIP=4},
-#    {COUNT=132, SKIP=128},
-#    {COUNT=200, SKIP=10},
-#    {COUNT=200, SKIP=100},
-#    {COUNT=4,   SKIP=2},
-#    {COUNT=4,   SKIP=3},
-#]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "kitty",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
-#    size_t size = strlen("kittycatcat");
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "kittycatcat", size);
-#    for (int j = 0; j < COUNT; j++) {
-#        lfs_file_write(&lfs, &file, buffer, size);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_RDWR) => 0;
-#
-#    size = strlen("kittycatcat");
-#    lfs_file_size(&lfs, &file) => COUNT*size;
-#    lfs_file_seek(&lfs, &file, (COUNT+SKIP)*size,
-#            LFS_SEEK_SET) => (COUNT+SKIP)*size;
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#
-#    memcpy(buffer, "porcupineee", size);
-#    lfs_file_write(&lfs, &file, buffer, size) => size;
-#
-#    lfs_file_seek(&lfs, &file, (COUNT+SKIP)*size,
-#            LFS_SEEK_SET) => (COUNT+SKIP)*size;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "porcupineee", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, COUNT*size,
-#            LFS_SEEK_SET) => COUNT*size;
-#    lfs_file_read(&lfs, &file, buffer, size) => size;
-#    memcmp(buffer, "\0\0\0\0\0\0\0\0\0\0\0", size) => 0;
-#
-#    lfs_file_seek(&lfs, &file, -((COUNT+SKIP)*size),
-#            LFS_SEEK_CUR) => LFS_ERR_INVAL;
-#    lfs_file_tell(&lfs, &file) => (COUNT+1)*size;
-#
-#    lfs_file_seek(&lfs, &file, -((COUNT+2*SKIP)*size),
-#            LFS_SEEK_END) => LFS_ERR_INVAL;
-#    lfs_file_tell(&lfs, &file) => (COUNT+1)*size;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## inline write and seek
-#[cases.test_seek_inline_write]
-#defines.SIZE = [2, 4, 128, 132]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "tinykitty",
-#            LFS_O_RDWR | LFS_O_CREAT) => 0;
-#    int j = 0;
-#    int k = 0;
-#
-#    uint8_t buffer[1024];
-#    memcpy(buffer, "abcdefghijklmnopqrstuvwxyz", 26);
-#    for (unsigned i = 0; i < SIZE; i++) {
-#        lfs_file_write(&lfs, &file, &buffer[j++ % 26], 1) => 1;
-#        lfs_file_tell(&lfs, &file) => i+1;
-#        lfs_file_size(&lfs, &file) => i+1;
-#    }
-#
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#    lfs_file_tell(&lfs, &file) => 0;
-#    lfs_file_size(&lfs, &file) => SIZE;
-#    for (unsigned i = 0; i < SIZE; i++) {
-#        uint8_t c;
-#        lfs_file_read(&lfs, &file, &c, 1) => 1;
-#        c => buffer[k++ % 26];
-#    }
-#
-#    lfs_file_sync(&lfs, &file) => 0;
-#    lfs_file_tell(&lfs, &file) => SIZE;
-#    lfs_file_size(&lfs, &file) => SIZE;
-#
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#    for (unsigned i = 0; i < SIZE; i++) {
-#        lfs_file_write(&lfs, &file, &buffer[j++ % 26], 1) => 1;
-#        lfs_file_tell(&lfs, &file) => i+1;
-#        lfs_file_size(&lfs, &file) => SIZE;
-#        lfs_file_sync(&lfs, &file) => 0;
-#        lfs_file_tell(&lfs, &file) => i+1;
-#        lfs_file_size(&lfs, &file) => SIZE;
-#        if (i < SIZE-2) {
-#            uint8_t c[3];
-#            lfs_file_seek(&lfs, &file, -1, LFS_SEEK_CUR) => i;
-#            lfs_file_read(&lfs, &file, &c, 3) => 3;
-#            lfs_file_tell(&lfs, &file) => i+3;
-#            lfs_file_size(&lfs, &file) => SIZE;
-#            lfs_file_seek(&lfs, &file, i+1, LFS_SEEK_SET) => i+1;
-#            lfs_file_tell(&lfs, &file) => i+1;
-#            lfs_file_size(&lfs, &file) => SIZE;
-#        }
-#    }
-#
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#    lfs_file_tell(&lfs, &file) => 0;
-#    lfs_file_size(&lfs, &file) => SIZE;
-#    for (unsigned i = 0; i < SIZE; i++) {
-#        uint8_t c;
-#        lfs_file_read(&lfs, &file, &c, 1) => 1;
-#        c => buffer[k++ % 26];
-#    }
-#
-#    lfs_file_sync(&lfs, &file) => 0;
-#    lfs_file_tell(&lfs, &file) => SIZE;
-#    lfs_file_size(&lfs, &file) => SIZE;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## file seek and write with power-loss
-#[cases.test_seek_reentrant_write]
-## must be power-of-2 for quadratic probing to be exhaustive
-#defines.COUNT = [4, 64, 128]
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#    lfs_file_t file;
-#    uint8_t buffer[1024];
-#    err = lfs_file_open(&lfs, &file, "kitty", LFS_O_RDONLY);
-#    assert(!err || err == LFS_ERR_NOENT);
-#    if (!err) {
-#        if (lfs_file_size(&lfs, &file) != 0) {
-#            lfs_file_size(&lfs, &file) => 11*COUNT;
-#            for (int j = 0; j < COUNT; j++) {
-#                memset(buffer, 0, 11+1);
-#                lfs_file_read(&lfs, &file, buffer, 11) => 11;
-#                assert(memcmp(buffer, "kittycatcat", 11) == 0 ||
-#                       memcmp(buffer, "doggodogdog", 11) == 0);
-#            }
-#        }
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#    if (lfs_file_size(&lfs, &file) == 0) {
-#        for (int j = 0; j < COUNT; j++) {
-#            strcpy((char*)buffer, "kittycatcat");
-#            size_t size = strlen((char*)buffer);
-#            lfs_file_write(&lfs, &file, buffer, size) => size;
-#        }
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    strcpy((char*)buffer, "doggodogdog");
-#    size_t size = strlen((char*)buffer);
-#
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => COUNT*size;
-#    // seek and write using quadratic probing to touch all
-#    // 11-byte words in the file
-#    lfs_off_t off = 0;
-#    for (int j = 0; j < COUNT; j++) {
-#        off = (5*off + 1) % COUNT;
-#        lfs_file_seek(&lfs, &file, off*size, LFS_SEEK_SET) => off*size;
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        assert(memcmp(buffer, "kittycatcat", size) == 0 ||
-#               memcmp(buffer, "doggodogdog", size) == 0);
-#        if (memcmp(buffer, "doggodogdog", size) != 0) {
-#            lfs_file_seek(&lfs, &file, off*size, LFS_SEEK_SET) => off*size;
-#            strcpy((char*)buffer, "doggodogdog");
-#            lfs_file_write(&lfs, &file, buffer, size) => size;
-#            lfs_file_seek(&lfs, &file, off*size, LFS_SEEK_SET) => off*size;
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            assert(memcmp(buffer, "doggodogdog", size) == 0);
-#            lfs_file_sync(&lfs, &file) => 0;
-#            lfs_file_seek(&lfs, &file, off*size, LFS_SEEK_SET) => off*size;
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            assert(memcmp(buffer, "doggodogdog", size) == 0);
-#        }
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "kitty", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => COUNT*size;
-#    for (int j = 0; j < COUNT; j++) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        assert(memcmp(buffer, "doggodogdog", size) == 0);
-#    }
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
diff --git a/tests/test_superblocks.toml b/tests/test_superblocks.toml
deleted file mode 100644
index 95da01b9..00000000
--- a/tests/test_superblocks.toml
+++ /dev/null
@@ -1,211 +0,0 @@
-## simple format test
-#[cases.test_superblocks_format]
-#code = '''
-#    lfs_t lfs;
-#    lfsr_format(&lfs, cfg) => 0;
-#'''
-#
-## simple mount/unmount test
-#[cases.test_superblocks_mount]
-#code = '''
-#    lfs_t lfs;
-#    lfsr_format(&lfs, cfg) => 0;
-#    lfsr_mount(&lfs, cfg) => 0;
-#    lfsr_unmount(&lfs) => 0;
-#'''
-#
-## reentrant format
-#[cases.test_superblocks_reentrant_format]
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfsr_mount(&lfs, cfg);
-#    if (err) {
-#        lfsr_format(&lfs, cfg) => 0;
-#        lfsr_mount(&lfs, cfg) => 0;
-#    }
-#    lfsr_unmount(&lfs) => 0;
-#'''
-#
-## invalid mount
-#[cases.test_superblocks_invalid]
-#code = '''
-#    lfs_t lfs;
-#    lfsr_mount(&lfs, cfg) => LFS_ERR_INVAL;
-#'''
-#
-## superblock cycle detection
-#[cases.test_superblocks_cycle]
-#in = 'lfs.c'
-#code = '''
-#    // create a cycle
-#    lfs_t lfs;
-#    lfsr_format(&lfs, cfg) => 0;
-#    lfsr_mount(&lfs, cfg) => 0;
-#    uint8_t buf[LFSR_MPAIR_DSIZE];
-#    lfs_ssize_t d = lfsr_mpair_todisk(&lfs,
-#            lfsr_mdir_mpair(&lfs.mroot), buf);
-#    assert(d >= 0);
-#    lfsr_mdir_commit(&lfs, &lfs.mroot, &(lfs_ssize_t){-1}, LFSR_ATTRS(
-#            LFSR_ATTR(-1, MROOT, 0, buf, d))) => 0;
-#    lfsr_unmount(&lfs) => 0;
-#
-#    // now detect the cycle
-#    lfsr_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-#'''
-#
-#
-#
-#
-#
-### simple formatting test
-##[cases.test_superblocks_format]
-##code = '''
-##    lfs_t lfs;
-##    lfs_format(&lfs, cfg) => 0;
-##'''
-##
-### mount/unmount
-##[cases.test_superblocks_mount]
-##code = '''
-##    lfs_t lfs;
-##    lfs_format(&lfs, cfg) => 0;
-##    lfs_mount(&lfs, cfg) => 0;
-##    lfs_unmount(&lfs) => 0;
-##'''
-##
-### reentrant format
-##[cases.test_superblocks_reentrant_format]
-##reentrant = true
-##code = '''
-##    lfs_t lfs;
-##    int err = lfs_mount(&lfs, cfg);
-##    if (err) {
-##        lfs_format(&lfs, cfg) => 0;
-##        lfs_mount(&lfs, cfg) => 0;
-##    }
-##    lfs_unmount(&lfs) => 0;
-##'''
-##
-### invalid mount
-##[cases.test_superblocks_invalid_mount]
-##code = '''
-##    lfs_t lfs;
-##    lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
-##'''
-##
-### expanding superblock
-##[cases.test_superblocks_expand]
-##defines.BLOCK_CYCLES = [32, 33, 1]
-##defines.N = [10, 100, 1000]
-##code = '''
-##    lfs_t lfs;
-##    lfs_format(&lfs, cfg) => 0;
-##    lfs_mount(&lfs, cfg) => 0;
-##    for (int i = 0; i < N; i++) {
-##        lfs_file_t file;
-##        lfs_file_open(&lfs, &file, "dummy",
-##                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-##        lfs_file_close(&lfs, &file) => 0;
-##        struct lfs_info info;
-##        lfs_stat(&lfs, "dummy", &info) => 0;
-##        assert(strcmp(info.name, "dummy") == 0);
-##        assert(info.type == LFS_TYPE_REG);
-##        lfs_remove(&lfs, "dummy") => 0;
-##    }
-##    lfs_unmount(&lfs) => 0;
-##
-##    // one last check after power-cycle
-##    lfs_mount(&lfs, cfg) => 0;
-##    lfs_file_t file;
-##    lfs_file_open(&lfs, &file, "dummy",
-##            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-##    lfs_file_close(&lfs, &file) => 0;
-##    struct lfs_info info;
-##    lfs_stat(&lfs, "dummy", &info) => 0;
-##    assert(strcmp(info.name, "dummy") == 0);
-##    assert(info.type == LFS_TYPE_REG);
-##    lfs_unmount(&lfs) => 0;
-##'''
-##
-### expanding superblock with power cycle
-##[cases.test_superblocks_expand_power_cycle]
-##defines.BLOCK_CYCLES = [32, 33, 1]
-##defines.N = [10, 100, 1000]
-##code = '''
-##    lfs_t lfs;
-##    lfs_format(&lfs, cfg) => 0;
-##    for (int i = 0; i < N; i++) {
-##        lfs_mount(&lfs, cfg) => 0;
-##        // remove lingering dummy?
-##        struct lfs_info info;
-##        int err = lfs_stat(&lfs, "dummy", &info);
-##        assert(err == 0 || (err == LFS_ERR_NOENT && i == 0));
-##        if (!err) {
-##            assert(strcmp(info.name, "dummy") == 0);
-##            assert(info.type == LFS_TYPE_REG);
-##            lfs_remove(&lfs, "dummy") => 0;
-##        }
-##
-##        lfs_file_t file;
-##        lfs_file_open(&lfs, &file, "dummy",
-##                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-##        lfs_file_close(&lfs, &file) => 0;
-##        lfs_stat(&lfs, "dummy", &info) => 0;
-##        assert(strcmp(info.name, "dummy") == 0);
-##        assert(info.type == LFS_TYPE_REG);
-##        lfs_unmount(&lfs) => 0;
-##    }
-##
-##    // one last check after power-cycle
-##    lfs_mount(&lfs, cfg) => 0;
-##    struct lfs_info info;
-##    lfs_stat(&lfs, "dummy", &info) => 0;
-##    assert(strcmp(info.name, "dummy") == 0);
-##    assert(info.type == LFS_TYPE_REG);
-##    lfs_unmount(&lfs) => 0;
-##'''
-##
-### reentrant expanding superblock
-##[cases.test_superblocks_reentrant_expand]
-##defines.BLOCK_CYCLES = [2, 1]
-##defines.N = 24
-##reentrant = true
-##code = '''
-##    lfs_t lfs;
-##    int err = lfs_mount(&lfs, cfg);
-##    if (err) {
-##        lfs_format(&lfs, cfg) => 0;
-##        lfs_mount(&lfs, cfg) => 0;
-##    }
-##
-##    for (int i = 0; i < N; i++) {
-##        // remove lingering dummy?
-##        struct lfs_info info;
-##        err = lfs_stat(&lfs, "dummy", &info);
-##        assert(err == 0 || (err == LFS_ERR_NOENT && i == 0));
-##        if (!err) {
-##            assert(strcmp(info.name, "dummy") == 0);
-##            assert(info.type == LFS_TYPE_REG);
-##            lfs_remove(&lfs, "dummy") => 0;
-##        }
-##
-##        lfs_file_t file;
-##        lfs_file_open(&lfs, &file, "dummy",
-##                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
-##        lfs_file_close(&lfs, &file) => 0;
-##        lfs_stat(&lfs, "dummy", &info) => 0;
-##        assert(strcmp(info.name, "dummy") == 0);
-##        assert(info.type == LFS_TYPE_REG);
-##    }
-##
-##    lfs_unmount(&lfs) => 0;
-##
-##    // one last check after power-cycle
-##    lfs_mount(&lfs, cfg) => 0;
-##    struct lfs_info info;
-##    lfs_stat(&lfs, "dummy", &info) => 0;
-##    assert(strcmp(info.name, "dummy") == 0);
-##    assert(info.type == LFS_TYPE_REG);
-##    lfs_unmount(&lfs) => 0;
-##'''
diff --git a/tests/test_truncate.toml b/tests/test_truncate.toml
deleted file mode 100644
index 7644a216..00000000
--- a/tests/test_truncate.toml
+++ /dev/null
@@ -1,477 +0,0 @@
-## simple truncate
-#[cases.test_truncate_simple]
-#defines.MEDIUMSIZE = [32, 2048]
-#defines.LARGESIZE = 8192
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "baldynoop",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#
-#    uint8_t buffer[1024];
-#    strcpy((char*)buffer, "hair");
-#    size_t size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < LARGESIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#    
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldynoop", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#
-#    lfs_file_truncate(&lfs, &file, MEDIUMSIZE) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldynoop", LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    size = strlen("hair");
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hair", size) => 0;
-#    }
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## truncate and read
-#[cases.test_truncate_read]
-#defines.MEDIUMSIZE = [32, 2048]
-#defines.LARGESIZE = 8192
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "baldyread",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#
-#    uint8_t buffer[1024];
-#    strcpy((char*)buffer, "hair");
-#    size_t size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < LARGESIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldyread", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#
-#    lfs_file_truncate(&lfs, &file, MEDIUMSIZE) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    size = strlen("hair");
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hair", size) => 0;
-#    }
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldyread", LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    size = strlen("hair");
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hair", size) => 0;
-#    }
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## write, truncate, and read
-#[cases.test_truncate_write_read]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "sequence",
-#            LFS_O_RDWR | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#    uint8_t buffer[1024];
-#    size_t size = lfs_min(lfs.cfg->cache_size, sizeof(buffer)/2);
-#    lfs_size_t qsize = size / 4;
-#    uint8_t *wb = buffer;
-#    uint8_t *rb = buffer + size;
-#    for (lfs_off_t j = 0; j < size; ++j) {
-#        wb[j] = j;
-#    }
-#
-#    /* Spread sequence over size */
-#    lfs_file_write(&lfs, &file, wb, size) => size;
-#    lfs_file_size(&lfs, &file) => size;
-#    lfs_file_tell(&lfs, &file) => size;
-#
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#    lfs_file_tell(&lfs, &file) => 0;
-#
-#    /* Chop off the last quarter */
-#    lfs_size_t trunc = size - qsize;
-#    lfs_file_truncate(&lfs, &file, trunc) => 0;
-#    lfs_file_tell(&lfs, &file) => 0;
-#    lfs_file_size(&lfs, &file) => trunc;
-#
-#    /* Read should produce first 3/4 */
-#    lfs_file_read(&lfs, &file, rb, size) => trunc;
-#    memcmp(rb, wb, trunc) => 0;
-#
-#    /* Move to 1/4 */
-#    lfs_file_size(&lfs, &file) => trunc;
-#    lfs_file_seek(&lfs, &file, qsize, LFS_SEEK_SET) => qsize;
-#    lfs_file_tell(&lfs, &file) => qsize;
-#
-#    /* Chop to 1/2 */
-#    trunc -= qsize;
-#    lfs_file_truncate(&lfs, &file, trunc) => 0;
-#    lfs_file_tell(&lfs, &file) => qsize;
-#    lfs_file_size(&lfs, &file) => trunc;
-#    
-#    /* Read should produce second quarter */
-#    lfs_file_read(&lfs, &file, rb, size) => trunc - qsize;
-#    memcmp(rb, wb + qsize, trunc - qsize) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## truncate and write
-#[cases.test_truncate_write]
-#defines.MEDIUMSIZE = [32, 2048]
-#defines.LARGESIZE = 8192
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "baldywrite",
-#            LFS_O_WRONLY | LFS_O_CREAT) => 0;
-#
-#    uint8_t buffer[1024];
-#    strcpy((char*)buffer, "hair");
-#    size_t size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < LARGESIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldywrite", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#
-#    lfs_file_truncate(&lfs, &file, MEDIUMSIZE) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    strcpy((char*)buffer, "bald");
-#    size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldywrite", LFS_O_RDONLY) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    size = strlen("bald");
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "bald", size) => 0;
-#    }
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## truncate write under powerloss
-#[cases.test_truncate_reentrant_write]
-#defines.SMALLSIZE = [4, 512]
-#defines.MEDIUMSIZE = [32, 1024]
-#defines.LARGESIZE = 2048
-#reentrant = true
-#code = '''
-#    lfs_t lfs;
-#    int err = lfs_mount(&lfs, cfg);
-#    if (err) {
-#        lfs_format(&lfs, cfg) => 0;
-#        lfs_mount(&lfs, cfg) => 0;
-#    }
-#    lfs_file_t file;
-#    err = lfs_file_open(&lfs, &file, "baldy", LFS_O_RDONLY);
-#    assert(!err || err == LFS_ERR_NOENT);
-#    if (!err) {
-#        size_t size = lfs_file_size(&lfs, &file);
-#        assert(size == 0 ||
-#                size == (size_t)LARGESIZE ||
-#                size == (size_t)MEDIUMSIZE ||
-#                size == (size_t)SMALLSIZE);
-#        for (lfs_off_t j = 0; j < size; j += 4) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, 4) => 4;
-#            assert(memcmp(buffer, "hair", 4) == 0 ||
-#                   memcmp(buffer, "bald", 4) == 0 ||
-#                   memcmp(buffer, "comb", 4) == 0);
-#        }
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#
-#    lfs_file_open(&lfs, &file, "baldy",
-#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#    lfs_file_size(&lfs, &file) => 0;
-#    uint8_t buffer[1024];
-#    strcpy((char*)buffer, "hair");
-#    size_t size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < LARGESIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "baldy", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => LARGESIZE;
-#    lfs_file_truncate(&lfs, &file, MEDIUMSIZE) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#    strcpy((char*)buffer, "bald");
-#    size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_file_open(&lfs, &file, "baldy", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#    lfs_file_truncate(&lfs, &file, SMALLSIZE) => 0;
-#    lfs_file_size(&lfs, &file) => SMALLSIZE;
-#    strcpy((char*)buffer, "comb");
-#    size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < SMALLSIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#    }
-#    lfs_file_size(&lfs, &file) => SMALLSIZE;
-#    lfs_file_close(&lfs, &file) => 0;
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## more aggressive general truncation tests
-#[cases.test_truncate_aggressive]
-#defines.CONFIG = 'range(6)'
-#defines.SMALLSIZE = 32
-#defines.MEDIUMSIZE = 2048
-#defines.LARGESIZE = 8192
-#code = '''
-#    lfs_t lfs;
-#    #define COUNT 5
-#    const struct {
-#        lfs_off_t startsizes[COUNT];
-#        lfs_off_t startseeks[COUNT];
-#        lfs_off_t hotsizes[COUNT];
-#        lfs_off_t coldsizes[COUNT];
-#    } configs[] = {
-#        // cold shrinking
-#        {{2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {          0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE, 2*LARGESIZE}},
-#        // cold expanding
-#        {{2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {          0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE, 2*LARGESIZE}},
-#        // warm shrinking truncate
-#        {{2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {          0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE, 2*LARGESIZE},
-#         {          0,           0,           0,           0,           0}},
-#        // warm expanding truncate
-#        {{          0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE, 2*LARGESIZE},
-#         {          0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE}},
-#        // mid-file shrinking truncate
-#        {{2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {  LARGESIZE,   LARGESIZE,   LARGESIZE,   LARGESIZE,   LARGESIZE},
-#         {          0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE, 2*LARGESIZE},
-#         {          0,           0,           0,           0,           0}},
-#        // mid-file expanding truncate
-#        {{          0,   SMALLSIZE,   MEDIUMSIZE,  LARGESIZE, 2*LARGESIZE},
-#         {          0,           0,   SMALLSIZE,  MEDIUMSIZE,   LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE},
-#         {2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE, 2*LARGESIZE}},
-#    };
-#
-#    const lfs_off_t *startsizes = configs[CONFIG].startsizes;
-#    const lfs_off_t *startseeks = configs[CONFIG].startseeks;
-#    const lfs_off_t *hotsizes   = configs[CONFIG].hotsizes;
-#    const lfs_off_t *coldsizes  = configs[CONFIG].coldsizes;
-#
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    for (unsigned i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "hairyhead%d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path,
-#                LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
-#
-#        uint8_t buffer[1024];
-#        strcpy((char*)buffer, "hair");
-#        size_t size = strlen((char*)buffer);
-#        for (lfs_off_t j = 0; j < startsizes[i]; j += size) {
-#            lfs_file_write(&lfs, &file, buffer, size) => size;
-#        }
-#        lfs_file_size(&lfs, &file) => startsizes[i];
-#
-#        if (startseeks[i] != startsizes[i]) {
-#            lfs_file_seek(&lfs, &file,
-#                    startseeks[i], LFS_SEEK_SET) => startseeks[i];
-#        }
-#
-#        lfs_file_truncate(&lfs, &file, hotsizes[i]) => 0;
-#        lfs_file_size(&lfs, &file) => hotsizes[i];
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    for (unsigned i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "hairyhead%d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path, LFS_O_RDWR) => 0;
-#        lfs_file_size(&lfs, &file) => hotsizes[i];
-#
-#        size_t size = strlen("hair");
-#        lfs_off_t j = 0;
-#        for (; j < startsizes[i] && j < hotsizes[i]; j += size) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            memcmp(buffer, "hair", size) => 0;
-#        }
-#
-#        for (; j < hotsizes[i]; j += size) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            memcmp(buffer, "\0\0\0\0", size) => 0;
-#        }
-#
-#        lfs_file_truncate(&lfs, &file, coldsizes[i]) => 0;
-#        lfs_file_size(&lfs, &file) => coldsizes[i];
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#
-#    lfs_unmount(&lfs) => 0;
-#
-#    lfs_mount(&lfs, cfg) => 0;
-#
-#    for (unsigned i = 0; i < COUNT; i++) {
-#        char path[1024];
-#        sprintf(path, "hairyhead%d", i);
-#        lfs_file_t file;
-#        lfs_file_open(&lfs, &file, path, LFS_O_RDONLY) => 0;
-#        lfs_file_size(&lfs, &file) => coldsizes[i];
-#
-#        size_t size = strlen("hair");
-#        lfs_off_t j = 0;
-#        for (; j < startsizes[i] && j < hotsizes[i] && j < coldsizes[i];
-#                j += size) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            memcmp(buffer, "hair", size) => 0;
-#        }
-#
-#        for (; j < coldsizes[i]; j += size) {
-#            uint8_t buffer[1024];
-#            lfs_file_read(&lfs, &file, buffer, size) => size;
-#            memcmp(buffer, "\0\0\0\0", size) => 0;
-#        }
-#
-#        lfs_file_close(&lfs, &file) => 0;
-#    }
-#
-#    lfs_unmount(&lfs) => 0;
-#'''
-#
-## noop truncate
-#[cases.test_truncate_nop]
-#defines.MEDIUMSIZE = [32, 2048]
-#code = '''
-#    lfs_t lfs;
-#    lfs_format(&lfs, cfg) => 0;
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_t file;
-#    lfs_file_open(&lfs, &file, "baldynoop",
-#            LFS_O_RDWR | LFS_O_CREAT) => 0;
-#
-#    uint8_t buffer[1024];
-#    strcpy((char*)buffer, "hair");
-#    size_t size = strlen((char*)buffer);
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_write(&lfs, &file, buffer, size) => size;
-#
-#        // this truncate should do nothing
-#        lfs_file_truncate(&lfs, &file, j+size) => 0;
-#    }
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET) => 0;
-#    // should do nothing again
-#    lfs_file_truncate(&lfs, &file, MEDIUMSIZE) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hair", size) => 0;
-#    }
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#
-#    // still there after reboot?
-#    lfs_mount(&lfs, cfg) => 0;
-#    lfs_file_open(&lfs, &file, "baldynoop", LFS_O_RDWR) => 0;
-#    lfs_file_size(&lfs, &file) => MEDIUMSIZE;
-#    for (lfs_off_t j = 0; j < MEDIUMSIZE; j += size) {
-#        lfs_file_read(&lfs, &file, buffer, size) => size;
-#        memcmp(buffer, "hair", size) => 0;
-#    }
-#    lfs_file_read(&lfs, &file, buffer, size) => 0;
-#    lfs_file_close(&lfs, &file) => 0;
-#    lfs_unmount(&lfs) => 0;
-#'''