Regression tests for file systems.
I’ve spend some time working on a test suite, that verifies if file system works correctly. It mostly checks POSIX complaisance and works for FreeBSD/UFS, FreeBSD/ZFS, Solaris/UFS and Solaris/ZFS. The list of system calls tested is as follows: chflags, chmod, chown, link, mkdir, mkfifo, open, rename, rmdir, symlink, truncate, unlink. There are 3438 regression tests in 184 files and belive me, this was really boring work, but very educational on the other hand. All those tests are already committed to FreeBSD’s HEAD branch under src/tools/regression/fstest/. During the work I also updated many manual pages. At some point I’m planning to make this test suite to work on Darwin and Linux, but not sure yet when exactly.
The main motivation for this work was that there is no free POSIX complaisance test suite, AFAIK. Shame on you.