A comment in the pytest.ini about running tests in parallel.

Jackson notes:
  I also tried running in parallel and ended up with Julia issues.
  I think --no-julia won't work for us though -
  we would need to individually label each unit test with either a
  pytest marker or fixture to indicate that it requires the Julia
  runtime (see the pyjulia docs).

I add that, for me, the test collection seems to cause Julia compilation
of everything, on every runner, so it takes for ever.
I think it can be a helpful option if you're running a subset of the
tests. But I don't think it's a good default.

Author: rwest

pytest.ini

@@ -14,6 +14,7 @@ filterwarnings =
 # --last-failed to run only the tests which failed on the previous run
 # --show-capture no/stdout/stderr/both
 # -k "test name" will run only the tests that match the pattern in quotes, i.e. "test_arkane or test_rmg" would run those two tests
+# -n auto # will use all available cores, if you first pip install pytest-xdist, but it doesn't work well with julia (so add --no-julia? or give up?)
 addopts = 
     --keep-duplicates
     -p julia.pytestplugin