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Fixed the orphan test to handle logging metadata-pairs

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The main issue here was that the old orphan test relied on deleting the
block that contained the most recent update. In the new design this
doesn't really work since updates get appended to metadata-pairs
incrementally.

This is fixed by instead using the truncate command on the appropriate
block. We're now passing orphan tests.
This commit is contained in:
Christopher Haster
2018-07-30 09:10:04 -05:00
parent 15d156082c
commit 3e246da52c
4 changed files with 57 additions and 47 deletions
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32
tests/test_orphan.sh
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@@ -15,25 +15,29 @@ tests/test.py << TEST
lfs_mkdir(&lfs, "parent/child") => 0;
lfs_remove(&lfs, "parent/orphan") => 0;
TEST
# remove most recent file, this should be the update to the previous
# corrupt most recent commit, this should be the update to the previous
# linked-list entry and should orphan the child
rm -v blocks/8
tests/test.py << TEST
truncate -s-14 blocks/8
tests/test.py << TEST
lfs_mount(&lfs, &cfg) => 0;
lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
unsigned before = 0;
lfs_traverse(&lfs, test_count, &before) => 0;
test_log("before", before);
lfs_deorphan(&lfs) => 0;
lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
unsigned after = 0;
lfs_traverse(&lfs, test_count, &after) => 0;
test_log("after", after);
lfs_ssize_t before = lfs_fs_size(&lfs);
before => 10;
lfs_unmount(&lfs) => 0;
lfs_mount(&lfs, &cfg) => 0;
lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
lfs_ssize_t orphaned = lfs_fs_size(&lfs);
orphaned => 10;
lfs_mkdir(&lfs, "parent/otherchild") => 0;
lfs_stat(&lfs, "parent/orphan", &info) => LFS_ERR_NOENT;
lfs_ssize_t deorphaned = lfs_fs_size(&lfs);
deorphaned => 10;
int diff = before - after;
diff => 2;
lfs_unmount(&lfs) => 0;
TEST