Christopher Haster
c8bc6f96cd
This is necessary for accessing format-specific information stored in the superblock after mounting. As is common in other filesystems this also provides the filesystem usage. However collecting the filesystem usage is more expensive in littlefs than other filesystem (and less accurate because of CoW), so this may need to be cached after mount in the future.
255 lines
7.2 KiB
TOML
255 lines
7.2 KiB
TOML
# simple formatting test
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[cases.test_superblocks_format]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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'''
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# mount/unmount
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[cases.test_superblocks_mount]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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lfs_mount(&lfs, cfg) => 0;
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lfs_unmount(&lfs) => 0;
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'''
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# reentrant format
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[cases.test_superblocks_reentrant_format]
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reentrant = true
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code = '''
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lfs_t lfs;
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int err = lfs_mount(&lfs, cfg);
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if (err) {
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lfs_format(&lfs, cfg) => 0;
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lfs_mount(&lfs, cfg) => 0;
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}
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lfs_unmount(&lfs) => 0;
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'''
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# invalid mount
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[cases.test_superblocks_invalid_mount]
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code = '''
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lfs_t lfs;
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lfs_mount(&lfs, cfg) => LFS_ERR_INVAL;
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'''
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# expanding superblock
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[cases.test_superblocks_expand]
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defines.BLOCK_CYCLES = [32, 33, 1]
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defines.N = [10, 100, 1000]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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lfs_mount(&lfs, cfg) => 0;
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for (int i = 0; i < N; i++) {
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "dummy",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfs_file_close(&lfs, &file) => 0;
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struct lfs_info info;
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lfs_stat(&lfs, "dummy", &info) => 0;
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_remove(&lfs, "dummy") => 0;
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}
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lfs_unmount(&lfs) => 0;
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// one last check after power-cycle
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lfs_mount(&lfs, cfg) => 0;
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "dummy",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfs_file_close(&lfs, &file) => 0;
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struct lfs_info info;
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lfs_stat(&lfs, "dummy", &info) => 0;
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_unmount(&lfs) => 0;
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'''
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# expanding superblock with power cycle
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[cases.test_superblocks_expand_power_cycle]
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defines.BLOCK_CYCLES = [32, 33, 1]
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defines.N = [10, 100, 1000]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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for (int i = 0; i < N; i++) {
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lfs_mount(&lfs, cfg) => 0;
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// remove lingering dummy?
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struct lfs_info info;
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int err = lfs_stat(&lfs, "dummy", &info);
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assert(err == 0 || (err == LFS_ERR_NOENT && i == 0));
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if (!err) {
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_remove(&lfs, "dummy") => 0;
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}
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "dummy",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_stat(&lfs, "dummy", &info) => 0;
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_unmount(&lfs) => 0;
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}
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// one last check after power-cycle
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lfs_mount(&lfs, cfg) => 0;
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struct lfs_info info;
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lfs_stat(&lfs, "dummy", &info) => 0;
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_unmount(&lfs) => 0;
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'''
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# reentrant expanding superblock
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[cases.test_superblocks_reentrant_expand]
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defines.BLOCK_CYCLES = [2, 1]
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defines.N = 24
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reentrant = true
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code = '''
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lfs_t lfs;
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int err = lfs_mount(&lfs, cfg);
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if (err) {
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lfs_format(&lfs, cfg) => 0;
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lfs_mount(&lfs, cfg) => 0;
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}
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for (int i = 0; i < N; i++) {
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// remove lingering dummy?
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struct lfs_info info;
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err = lfs_stat(&lfs, "dummy", &info);
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assert(err == 0 || (err == LFS_ERR_NOENT && i == 0));
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if (!err) {
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_remove(&lfs, "dummy") => 0;
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}
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "dummy",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfs_file_close(&lfs, &file) => 0;
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lfs_stat(&lfs, "dummy", &info) => 0;
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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}
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lfs_unmount(&lfs) => 0;
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// one last check after power-cycle
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lfs_mount(&lfs, cfg) => 0;
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struct lfs_info info;
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lfs_stat(&lfs, "dummy", &info) => 0;
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assert(strcmp(info.name, "dummy") == 0);
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assert(info.type == LFS_TYPE_REG);
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lfs_unmount(&lfs) => 0;
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'''
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# mount with unknown block_size
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[cases.test_superblocks_unknown_block_size]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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cfg->block_size = 0;
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lfs_mount(&lfs, cfg) => 0;
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struct lfs_fsinfo fsinfo;
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lfs_fs_stat(&lfs, &fsinfo) => 0;
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assert(fsinfo.block_size == BLOCK_SIZE);
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assert(fsinfo.block_count == BLOCK_COUNT);
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "test",
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LFS_O_CREAT | LFS_O_EXCL | LFS_O_WRONLY) => 0;
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lfs_file_write(&lfs, &file, "hello!", 6) => 6;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, cfg) => 0;
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lfs_fs_stat(&lfs, &fsinfo) => 0;
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assert(fsinfo.block_size == BLOCK_SIZE);
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assert(fsinfo.block_count == BLOCK_COUNT);
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lfs_file_open(&lfs, &file, "test", LFS_O_RDONLY) => 0;
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uint8_t buffer[256];
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lfs_file_read(&lfs, &file, buffer, sizeof(buffer)) => 6;
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lfs_file_close(&lfs, &file) => 0;
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assert(memcmp(buffer, "hello!", 6) == 0);
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lfs_unmount(&lfs) => 0;
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'''
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# mount with unknown block_count
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[cases.test_superblocks_unknown_block_count]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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cfg->block_count = 0;
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lfs_mount(&lfs, cfg) => 0;
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struct lfs_fsinfo fsinfo;
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lfs_fs_stat(&lfs, &fsinfo) => 0;
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assert(fsinfo.block_size == BLOCK_SIZE);
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assert(fsinfo.block_count == BLOCK_COUNT);
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "test",
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LFS_O_CREAT | LFS_O_EXCL | LFS_O_WRONLY) => 0;
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lfs_file_write(&lfs, &file, "hello!", 6) => 6;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, cfg) => 0;
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lfs_fs_stat(&lfs, &fsinfo) => 0;
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assert(fsinfo.block_size == BLOCK_SIZE);
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assert(fsinfo.block_count == BLOCK_COUNT);
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lfs_file_open(&lfs, &file, "test", LFS_O_RDONLY) => 0;
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uint8_t buffer[256];
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lfs_file_read(&lfs, &file, buffer, sizeof(buffer)) => 6;
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lfs_file_close(&lfs, &file) => 0;
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assert(memcmp(buffer, "hello!", 6) == 0);
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lfs_unmount(&lfs) => 0;
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'''
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# mount with unknown block_size+block_count
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[cases.test_superblocks_unknown_block_size_count]
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code = '''
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lfs_t lfs;
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lfs_format(&lfs, cfg) => 0;
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cfg->block_size = 0;
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cfg->block_count = 0;
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lfs_mount(&lfs, cfg) => 0;
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struct lfs_fsinfo fsinfo;
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lfs_fs_stat(&lfs, &fsinfo) => 0;
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assert(fsinfo.block_size == BLOCK_SIZE);
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assert(fsinfo.block_count == BLOCK_COUNT);
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lfs_file_t file;
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lfs_file_open(&lfs, &file, "test",
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LFS_O_CREAT | LFS_O_EXCL | LFS_O_WRONLY) => 0;
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lfs_file_write(&lfs, &file, "hello!", 6) => 6;
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lfs_file_close(&lfs, &file) => 0;
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, cfg) => 0;
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lfs_fs_stat(&lfs, &fsinfo) => 0;
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assert(fsinfo.block_size == BLOCK_SIZE);
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assert(fsinfo.block_count == BLOCK_COUNT);
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lfs_file_open(&lfs, &file, "test", LFS_O_RDONLY) => 0;
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uint8_t buffer[256];
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lfs_file_read(&lfs, &file, buffer, sizeof(buffer)) => 6;
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lfs_file_close(&lfs, &file) => 0;
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assert(memcmp(buffer, "hello!", 6) == 0);
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lfs_unmount(&lfs) => 0;
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'''
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