A question about the naming of e2fsprogs/tests

Hi All,

Now I am trying to create some regression tests for e2fsprogs to test inline data feature. I have a question about the naming of e2fsprogs/tests. I notice that in tests dir there are a lot of directories, which have different prefixes, such as d_loaddump, e_brel_bma, f_baddir, m_dasd_bs, r_move_itable, t_mmp_1on, and u_mke2fs. As far as I can understand, d_ is for debugfs, f_ means test for filesystem, m_ is for mke2fs, r_ is for resize2fs, t_ is for tune2fs, and u_ is for e2undo. Could anyone tell me what e_ stands for? If I misunderstand something, please point it out. Thanks.

Regards,
Zheng

The e_ calls were for unit tests for the "extent" functions --- where extents are not the ext4 extents, but some utility functions which were are used by resize2fs. These days we generally don't use the tests directory for unit tests, because it's a lot more work to do things that way. Instead there are tst_* files in lib/ext2fs that are built and run with "make check".

I *do* ask that people who create new functions in libext2fs strongly consider adding unit tests. We are pretty good with integration tests in the tests directory, but we are a bit light on unit tests coverage in lib/ext2fs.

And of course, if someone is inspired to write some new unit tests for existing functions, that would just great.

Thanks!!

- Ted