Can I mark some tests for serial instead of parallel execution?

[martinvonwittich]

i have a lot of tests in my test suite that run just fine in parallel (e.g. bats -j 10), but also a few that interfere with each other and can cause spurious failures. Can i mark these tests that bats knows they mustn't be run in parallel, so that bats will first run all other tests in parallel, and after wards the marked tests in serial order?

[martin-schulze-vireso]

From the man Page:

If you have files where tests within the file would interfere with each other, you can use
`--no-parallelize-within-files` to disable parallelization within all files.
If you want more fine-grained control, you can `export BATS_NO_PARALLELIZE_WITHIN_FILE=true` in `setup_file()`
or outside any function to disable parallelization only within the containing file.

[martinvonwittich]

Thanks! I hadn't noticed that because the Debian manpage apparently doesn't contain that quote (at least as of Debian bookworm, bats 1.8.2-1), but I can see in bats --help that the option --no-parallelize-within-files is supported. I was able to redesign my problematic tests in the meantime so that they should no longer interfere, but I'll keep the export BATS_NO_PARALLELIZE_WITHIN_FILE=true in mind if I encounter the issue again.