The pytest migration patch introduced a couple of regression in
tools/unit_tests.sh:
* We no longer cannot run a specific test explicitly
(per python file, per test class, per specific test).
Per module like openstack_dashboard, openstack_auth and horizon
is the only possible way after the pytest migration.
* openstack_dashboard tests outside of openstack_dashboard/test/
are not looked up when a subset is specified.
This commit restores the orginal behavior.
pytest uses a different way to specify tests.
We cannot use the style of python modules like
"openstack_auth.tests.unit.test_policy.PolicyLoaderTestCase.test_policy_file_load"
and we need to specify tests like file paths [1].
[1] https://docs.pytest.org/en/latest/usage.html#specifying-tests-selecting-tests
Closes-Bug: #1875123
Change-Id: Ic4b6c69d8a2ed774cce16521c4c4336f55ff737e
ccaaf8cbb9