Christopher Haster
d63b5e4ea1
These don't really rely on any advanced file operations, and can run in parallel. This was a leftover from when test_incompat+test_compat were merged, and test_compat should probably run after all file operations are thoroughly tested.
420 lines
13 KiB
TOML
420 lines
13 KiB
TOML
# Test (in)compatibility-related things
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#
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# Unlike test_compat, this focuses on specific corner-cases
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#
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after = ['test_mtree', 'test_dirs', 'test_files']
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## incompatiblity tests ##
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# test that we fail to mount after a major version bump
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[cases.test_incompat_major]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// bump the major version
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_VERSION, 0,
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LFSR_DATA_BUF(((const uint8_t[2]){
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LFS_DISK_VERSION_MAJOR+1,
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0}), 2)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that we fail to mount after a minor version bump
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[cases.test_incompat_minor]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// bump the minor version
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_VERSION, 0,
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LFSR_DATA_BUF(((const uint8_t[2]){
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LFS_DISK_VERSION_MAJOR,
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LFS_DISK_VERSION_MINOR+1}), 2)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that we fail to mount incompatible rcompat flags
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[cases.test_incompat_rcompat]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set the nonstandard rcompat flag, this will always be incompatible
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// with standard littlefs
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_RCOMPAT, 0,
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LFSR_DATA_RCOMPAT(
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LFSR_RCOMPAT_COMPAT
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| LFSR_RCOMPAT_NONSTANDARD)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that we fail to mount incompatible wcompat flags
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[cases.test_incompat_wcompat]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set the nonstandard rcompat flag, this will always be incompatible
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// with standard littlefs
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_WCOMPAT, 0,
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LFSR_DATA_WCOMPAT(
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LFSR_WCOMPAT_COMPAT
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| LFSR_WCOMPAT_NONSTANDARD)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that an incompatible ocompat flag is a noop
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[cases.test_incompat_ocompat]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set the nonstandard ocompat flag, this will always be incompatible
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// with standard littlefs
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_OCOMPAT, 0,
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LFSR_DATA_OCOMPAT(
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LFSR_OCOMPAT_COMPAT
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| LFSR_OCOMPAT_NONSTANDARD)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should _not_ fail, ocompat should always be ignored
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# these are just a bit harder to detect
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[cases.test_incompat_rcompat_overflow]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set a really far rcompat flag
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR_CAT(
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LFSR_TAG_RCOMPAT, 0,
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LFSR_DATA_RCOMPAT(LFSR_RCOMPAT_COMPAT),
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LFSR_DATA_BUF("\x00\x00\x00\x00\x80", 5)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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[cases.test_incompat_wcompat_overflow]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set a really far wcompat flag
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR_CAT(
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LFSR_TAG_WCOMPAT, 0,
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LFSR_DATA_WCOMPAT(LFSR_WCOMPAT_COMPAT),
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LFSR_DATA_BUF("\x00\x00\x00\x00\x80", 5)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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[cases.test_incompat_ocompat_overflow]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set a really far ocompat flag
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR_CAT(
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LFSR_TAG_OCOMPAT, 0,
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LFSR_DATA_OCOMPAT(LFSR_OCOMPAT_COMPAT),
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LFSR_DATA_BUF("\x00\x00\x00\x00\x80", 5)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should _not_ fail, ocompat should always be ignored
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_unmount(&lfs) => 0;
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'''
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# test that we fail to mount incompatible block sizes
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[cases.test_incompat_block_size]
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defines.INC_BLOCK_SIZE = ['BLOCK_SIZE/2', 'BLOCK_SIZE*2']
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set an incompatible block size
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_GEOMETRY, 0,
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LFSR_DATA_GEOMETRY((&(lfsr_geometry_t){
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INC_BLOCK_SIZE,
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BLOCK_COUNT}))))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that we fail to mount after incompatible block counts
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[cases.test_incompat_block_count]
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defines.INC_BLOCK_COUNT = ['BLOCK_COUNT*2']
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set an incompatible block count
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_GEOMETRY, 0,
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LFSR_DATA_GEOMETRY((&(lfsr_geometry_t){
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BLOCK_SIZE,
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INC_BLOCK_COUNT}))))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that we fail to mount after incompatible name limit
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[cases.test_incompat_name_limit]
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defines.INC_NAME_LIMIT = ['LFS_NAME_MAX*2']
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set an incompatible block size
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_NAMELIMIT, 0,
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LFSR_DATA_LLEB128(INC_NAME_LIMIT)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test that we fail to mount after incompatible file limit
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[cases.test_incompat_file_limit]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// set an incompatible file limit
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//
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// note we're messing around with internals to do this! this
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// is not a user API
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_commit(&lfs, &lfs.mroot, LFSR_ATTRS(
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LFSR_ATTR_CAT(
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LFSR_TAG_FILELIMIT, 0,
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// it's a bit difficult to test this since file limit
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// is usually our integer limit, but we can force a
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// larger value by inserting an extra byte into our
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// leb128 encoding
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LFSR_DATA_BUF("\xff", 1),
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LFSR_DATA_LEB128(LFS_FILE_MAX)))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount should now fail
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lfsr_mount(&lfs, CFG) => LFS_ERR_INVAL;
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'''
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# test what happens if we find an unknown file type
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[cases.test_incompat_unknown]
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in = 'lfs.c'
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code = '''
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// create a superblock
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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// create some files
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_file_t file;
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lfsr_file_open(&lfs, &file, "a",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfsr_file_write(&lfs, &file, "hi a!", strlen("hi a!")) => strlen("hi a!");
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_file_open(&lfs, &file, "b",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfsr_file_write(&lfs, &file, "hi b!", strlen("hi b!")) => strlen("hi b!");
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_file_open(&lfs, &file, "c",
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LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
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lfsr_file_write(&lfs, &file, "hi c!", strlen("hi c!")) => strlen("hi c!");
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lfsr_file_close(&lfs, &file) => 0;
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lfsr_unmount(&lfs) => 0;
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// change a file's type to something unknown
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lfsr_mount(&lfs, CFG) => 0;
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lfsr_mdir_t mdir;
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lfsr_did_t did;
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const char *name;
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lfs_size_t name_size;
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lfsr_mtree_pathlookup(&lfs, &lfs.mtree, "b",
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&mdir, NULL,
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&did, &name, &name_size) => LFS_ERR_EXIST;
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lfsr_mdir_commit(&lfs, &mdir, LFSR_ATTRS(
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LFSR_ATTR_NAME(
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LFSR_TAG_SUB | (LFSR_TAG_NAME + 0x13), 0,
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did, name, name_size))) => 0;
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lfsr_unmount(&lfs) => 0;
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// mount
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lfsr_mount(&lfs, CFG) => 0;
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// our file should appear as an unknown type
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struct lfs_info info;
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lfsr_stat(&lfs, "b", &info) => 0;
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assert(strcmp(info.name, "b") == 0);
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assert(info.type == 0x13);
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assert(info.size == 0);
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "a") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == strlen("hi a!"));
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "b") == 0);
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assert(info.type == 0x13);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "c") == 0);
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assert(info.type == LFS_TYPE_REG);
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assert(info.size == strlen("hi c!"));
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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// removing/renaming unknown files should return NOTSUP, we could
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// remove the metadata entry, but we would probably leak stuff
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lfsr_remove(&lfs, "b") => LFS_ERR_NOTSUP;
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lfsr_rename(&lfs, "b", "d") => LFS_ERR_NOTSUP;
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lfsr_rename(&lfs, "b", "c") => LFS_ERR_NOTSUP;
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lfsr_rename(&lfs, "a", "b") => LFS_ERR_NOTSUP;
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lfsr_file_open(&lfs, &file, "b",
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LFS_O_RDONLY) => LFS_ERR_NOTSUP;
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lfsr_file_open(&lfs, &file, "b",
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LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_NOTSUP;
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lfsr_mkdir(&lfs, "b") => LFS_ERR_EXIST;
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// we should also not try to use unknown files as dirs, which can
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// be a bit tricky
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lfsr_stat(&lfs, "b/d", &info) => LFS_ERR_NOTDIR;
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lfsr_remove(&lfs, "b/e") => LFS_ERR_NOTDIR;
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lfsr_rename(&lfs, "b/e", "d") => LFS_ERR_NOTDIR;
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lfsr_rename(&lfs, "b/e", "c") => LFS_ERR_NOTDIR;
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lfsr_rename(&lfs, "a", "b/e") => LFS_ERR_NOTDIR;
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lfsr_file_open(&lfs, &file, "b/e",
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LFS_O_RDONLY) => LFS_ERR_NOTDIR;
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lfsr_file_open(&lfs, &file, "b/e",
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LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_NOTDIR;
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lfsr_mkdir(&lfs, "b/e") => LFS_ERR_NOTDIR;
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lfsr_unmount(&lfs) => 0;
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'''
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