ansible/test/lib/ansible_test/_data/pytest.ini

[pytest]
xfail_strict = true
mock_use_standalone_module = true
# It was decided to stick with "legacy" (aka "xunit1") for now.
# Currently used pytest versions all support xunit2 format too.
# Except the one used under Python 2.6 — it doesn't process this option
# at all. Ref:
# https://github.com/ansible/ansible/pull/66445#discussion_r372530176
junit_family = xunit1