When adding multiple plugins to pytester.plugins only the first one is added as a -p <plugin> to the command line invocation in pytester.runpytest_subprocess().
Minimal example:
# Content of test_minimal.py:
def test_pytester_minimal(pytester):
pytester.plugins.extend(["no:plug_1", "no:plug_2"])
pytester.runpytest_subprocess()
$ pytest --version
pytest 8.3.5
$ pytest -p pytester -rP test_minimal.py
...
__________ test_pytester_minimal __________
---------- Captured stdout call ----------
running: /Users/Faboor/Projects/pytester/venv/bin/python3.12 -mpytest -p no:plug_1 --basetemp=/private/var/folders/q0/x7bql_wd1f9gw5y8rb15tg240000gq/T/pytest-of-Faboor/pytest-5/test_pytester_minimal0/runpytest-0
...
Notice that only -p no:plug_1 is added.
When adding multiple plugins to
pytester.pluginsonly the first one is added as a-p <plugin>to the command line invocation inpytester.runpytest_subprocess().Minimal example:
Notice that only
-p no:plug_1is added.