When running tests, @pytest.mark.trio is not recognized

[PureTryOut]

I'm running the tests as I described here (PYTHONPATH="." pytest --pyargs pytest_trio), but it seems it doesn't recognize the marker correctly:

====================================================== ERRORS =======================================================
_____________________________ ERROR collecting pytest_trio/_tests/test_clock_fixture.py _____________________________
pytest_trio/_tests/test_clock_fixture.py:5: in <module>
    @pytest.mark.trio
/usr/lib/python3.8/site-packages/_pytest/mark/structures.py:513: in __getattr__
    warnings.warn(
E   pytest.PytestUnknownMarkWarning: Unknown pytest.mark.trio - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
______________________________ ERROR collecting pytest_trio/_tests/test_contextvars.py ______________________________
pytest_trio/_tests/test_contextvars.py:35: in <module>
    ???
/usr/lib/python3.8/site-packages/_pytest/mark/structures.py:513: in __getattr__
    warnings.warn(
E   pytest.PytestUnknownMarkWarning: Unknown pytest.mark.trio - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
_____________________________ ERROR collecting pytest_trio/_tests/test_fixture_names.py _____________________________
pytest_trio/_tests/test_fixture_names.py:11: in <module>
    ???
/usr/lib/python3.8/site-packages/_pytest/mark/structures.py:513: in __getattr__
    warnings.warn(
E   pytest.PytestUnknownMarkWarning: Unknown pytest.mark.trio - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
____________________________ ERROR collecting pytest_trio/_tests/test_fixture_nursery.py ____________________________
pytest_trio/_tests/test_fixture_nursery.py:17: in <module>
    ???
/usr/lib/python3.8/site-packages/_pytest/mark/structures.py:513: in __getattr__
    warnings.warn(
E   pytest.PytestUnknownMarkWarning: Unknown pytest.mark.trio - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
________________________ ERROR collecting pytest_trio/_tests/test_hypothesis_interaction.py _________________________
pytest_trio/_tests/test_hypothesis_interaction.py:19: in <module>
    @pytest.mark.trio
/usr/lib/python3.8/site-packages/_pytest/mark/structures.py:513: in __getattr__
    warnings.warn(
E   pytest.PytestUnknownMarkWarning: Unknown pytest.mark.trio - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
_____________________________ ERROR collecting pytest_trio/_tests/test_sync_fixture.py ______________________________
pytest_trio/_tests/test_sync_fixture.py:9: in <module>
    ???
/usr/lib/python3.8/site-packages/_pytest/mark/structures.py:513: in __getattr__
    warnings.warn(
E   pytest.PytestUnknownMarkWarning: Unknown pytest.mark.trio - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html

This is the latest git master in an attempt to get the Alpine Linux package working again now pytest has been updated to 6.0.x

[altendky]

This is certainly not all locked down as I'm no Docker expert... but there's a Dockerfile and output below that seem to work.

tl;dr: PYTHONPATH="." PYTEST_PLUGINS="pytest_trio.plugin" pytest --pyargs pytest_trio

Wall of text

```Dockerfile FROM alpine:edge RUN apk update --update-cache RUN apk add git py3-pytest py3-pytest-cov py3-trio py3-hypothesis RUN git clone https://github.com/python-trio/pytest-trio WORKDIR pytest-trio RUN git checkout 57f458dc59468b9cf88deb6c21791c1ee0a15673 RUN PYTHONPATH="." PYTEST_PLUGINS="pytest_trio.plugin" pytest --pyargs pytest_trio ``` ```bash $ sudo docker build --no-cache --tag hmm . Sending build context to Docker daemon 22.64MB Step 1/7 : FROM alpine:edge ---> 3c791e92a856 Step 2/7 : RUN apk update --update-cache ---> Running in 3bde62a5bbfb fetch https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz fetch https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz v20200626-4194-gb70c911952 [https://dl-cdn.alpinelinux.org/alpine/edge/main] v20200626-4193-g859945b9f9 [https://dl-cdn.alpinelinux.org/alpine/edge/community] OK: 13134 distinct packages available Removing intermediate container 3bde62a5bbfb ---> 89c11dd0902c Step 3/7 : RUN apk add git py3-pytest py3-pytest-cov py3-trio py3-hypothesis ---> Running in 9d12026a0096 (1/46) Installing ca-certificates (20191127-r4) (2/46) Installing brotli-libs (1.0.9-r0) (3/46) Installing nghttp2-libs (1.41.0-r0) (4/46) Installing libcurl (7.72.0-r0) (5/46) Installing expat (2.2.9-r1) (6/46) Installing pcre2 (10.35-r0) (7/46) Installing git (2.28.0-r1) (8/46) Installing libbz2 (1.0.8-r1) (9/46) Installing libffi (3.3-r2) (10/46) Installing gdbm (1.13-r1) (11/46) Installing xz-libs (5.2.5-r0) (12/46) Installing ncurses-terminfo-base (6.2_p20200906-r1) (13/46) Installing ncurses-libs (6.2_p20200906-r1) (14/46) Installing readline (8.0.4-r0) (15/46) Installing sqlite-libs (3.33.0-r0) (16/46) Installing python3 (3.8.5-r0) (17/46) Installing py3-attrs (20.2.0-r0) (18/46) Installing py3-sortedcontainers (2.2.2-r0) (19/46) Installing py3-hypothesis (5.33.2-r0) (20/46) Installing py3-atomicwrites (1.4.0-r0) (21/46) Installing py3-more-itertools (8.4.0-r0) (22/46) Installing py3-iniconfig (1.0.1-r0) (23/46) Installing py3-pluggy (0.13.1-r0) (24/46) Installing py3-py (1.9.0-r0) (25/46) Installing py3-six (1.15.0-r0) (26/46) Installing py3-wcwidth (0.2.5-r0) (27/46) Installing py3-ordered-set (4.0.2-r0) (28/46) Installing py3-appdirs (1.4.4-r1) (29/46) Installing py3-parsing (2.4.7-r1) (30/46) Installing py3-packaging (20.4-r0) (31/46) Installing py3-setuptools (50.3.0-r0) (32/46) Installing py3-toml (0.10.1-r0) (33/46) Installing py3-pytest (6.0.1-r1) (34/46) Installing py3-coverage (5.2.1-r0) (35/46) Installing py3-pytest-cov (2.10.1-r0) (36/46) Installing py3-curio (1.4-r0) (37/46) Installing py3-sniffio (1.1.0-r0) (38/46) Installing py3-async_generator (1.10-r1) (39/46) Installing py3-outcome (1.0.1-r0) (40/46) Installing py3-idna (2.10-r0) (41/46) Installing py3-cparser (2.20-r0) (42/46) Installing py3-cffi (1.14.2-r0) (43/46) Installing py3-asn1crypto (1.4.0-r0) (44/46) Installing py3-cryptography (2.9.2-r0) (45/46) Installing py3-openssl (19.1.0-r0) (46/46) Installing py3-trio (0.16.0-r0) Executing busybox-1.31.1-r21.trigger Executing ca-certificates-20191127-r4.trigger OK: 93 MiB in 60 packages Removing intermediate container 9d12026a0096 ---> 85559c8bc339 Step 4/7 : RUN git clone https://github.com/python-trio/pytest-trio ---> Running in 7d25546e620c Cloning into 'pytest-trio'... Removing intermediate container 7d25546e620c ---> aa977755f8fe Step 5/7 : WORKDIR pytest-trio ---> Running in 511a661a18e5 Removing intermediate container 511a661a18e5 ---> b0fc2a7b4f66 Step 6/7 : RUN git checkout 57f458dc59468b9cf88deb6c21791c1ee0a15673 ---> Running in 3c3d5dc640cf Note: switching to '57f458dc59468b9cf88deb6c21791c1ee0a15673'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make in this state without impacting any branches by switching back to a branch. If you want to create a new branch to retain commits you create, you may do so (now or later) by using -c with the switch command. Example: git switch -c Or undo this operation with: git switch - Turn off this advice by setting config variable advice.detachedHead to false HEAD is now at 57f458d Merge pull request #106 from altendky/correct_example_assertion Removing intermediate container 3c3d5dc640cf ---> 6304af436d8b Step 7/7 : RUN PYTHONPATH="." PYTEST_PLUGINS="pytest_trio.plugin" pytest --pyargs pytest_trio ---> Running in 1e5b1193849d ============================= test session starts ============================== platform linux -- Python 3.8.5, pytest-6.0.1, py-1.9.0, pluggy-0.13.1 -- /usr/bin/python3 cachedir: .pytest_cache hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/pytest-trio/.hypothesis/examples') rootdir: /pytest-trio, configfile: pytest.ini plugins: hypothesis-5.33.2, cov-2.10.1 collecting ... collected 53 items pytest_trio/_tests/test_async_fixture.py::test_single_async_fixture PASSED [ 1%] pytest_trio/_tests/test_async_fixture.py::test_async_fixture_recomputed_for_each_test PASSED [ 3%] pytest_trio/_tests/test_async_fixture.py::test_nested_async_fixture PASSED [ 5%] pytest_trio/_tests/test_async_fixture.py::test_async_within_sync_fixture PASSED [ 7%] pytest_trio/_tests/test_async_fixture.py::test_raise_in_async_fixture_cause_pytest_error XFAIL [ 9%] pytest_trio/_tests/test_async_yield_fixture.py::test_single_async_yield_fixture[Python>=36] PASSED [ 11%] pytest_trio/_tests/test_async_yield_fixture.py::test_single_async_yield_fixture[async_generator] PASSED [ 13%] pytest_trio/_tests/test_async_yield_fixture.py::test_nested_async_yield_fixture[Python>=36] PASSED [ 15%] pytest_trio/_tests/test_async_yield_fixture.py::test_nested_async_yield_fixture[async_generator] PASSED [ 16%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_within_sync_fixture[Python>=36] PASSED [ 18%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_within_sync_fixture[async_generator] PASSED [ 20%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_within_sync_yield_fixture[Python>=36] PASSED [ 22%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_within_sync_yield_fixture[async_generator] PASSED [ 24%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_with_multiple_yields[Python>=36] PASSED [ 26%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_with_multiple_yields[async_generator] PASSED [ 28%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_with_nursery[Python>=36] PASSED [ 30%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_with_nursery[async_generator] PASSED [ 32%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_crashed_teardown_allow_other_teardowns[Python>=36] PASSED [ 33%] pytest_trio/_tests/test_async_yield_fixture.py::test_async_yield_fixture_crashed_teardown_allow_other_teardowns[async_generator] PASSED [ 35%] pytest_trio/_tests/test_basic.py::test_async_test_is_executed PASSED [ 37%] pytest_trio/_tests/test_basic.py::test_async_test_as_class_method PASSED [ 39%] pytest_trio/_tests/test_basic.py::test_sync_function_with_trio_mark XFAIL [ 41%] pytest_trio/_tests/test_clock_fixture.py::test_sleep_with_autojump_clock PASSED [ 43%] pytest_trio/_tests/test_contextvars.py::test_contextvars PASSED [ 45%] pytest_trio/_tests/test_fixture_mistakes.py::test_trio_fixture_with_non_trio_test PASSED [ 47%] pytest_trio/_tests/test_fixture_mistakes.py::test_trio_fixture_with_wrong_scope_without_trio_mode PASSED [ 49%] pytest_trio/_tests/test_fixture_mistakes.py::test_trio_fixture_with_wrong_scope_in_trio_mode[enable_trio_mode_via_pytest_ini] PASSED [ 50%] pytest_trio/_tests/test_fixture_mistakes.py::test_trio_fixture_with_wrong_scope_in_trio_mode[enable_trio_mode_via_conftest_py] PASSED [ 52%] pytest_trio/_tests/test_fixture_mistakes.py::test_async_fixture_with_sync_test_in_trio_mode[enable_trio_mode_via_pytest_ini] PASSED [ 54%] pytest_trio/_tests/test_fixture_mistakes.py::test_async_fixture_with_sync_test_in_trio_mode[enable_trio_mode_via_conftest_py] PASSED [ 56%] pytest_trio/_tests/test_fixture_mistakes.py::test_fixture_cancels_test_but_doesnt_raise[enable_trio_mode_via_pytest_ini] PASSED [ 58%] pytest_trio/_tests/test_fixture_mistakes.py::test_fixture_cancels_test_but_doesnt_raise[enable_trio_mode_via_conftest_py] PASSED [ 60%] pytest_trio/_tests/test_fixture_names.py::test_fixture_names PASSED [ 62%] pytest_trio/_tests/test_fixture_nursery.py::test_try PASSED [ 64%] pytest_trio/_tests/test_fixture_ordering.py::test_fixture_basic_ordering PASSED [ 66%] pytest_trio/_tests/test_fixture_ordering.py::test_nursery_fixture_teardown_ordering PASSED [ 67%] pytest_trio/_tests/test_fixture_ordering.py::test_error_collection PASSED [ 69%] pytest_trio/_tests/test_fixture_ordering.py::test_background_crash_cancellation_propagation[nursery fixture] PASSED [ 71%] pytest_trio/_tests/test_fixture_ordering.py::test_background_crash_cancellation_propagation[manual nursery] PASSED [ 73%] pytest_trio/_tests/test_fixture_ordering.py::test_complex_cancel_interaction_regression PASSED [ 75%] pytest_trio/_tests/test_hypothesis_interaction.py::test_mark_inner PASSED [ 77%] pytest_trio/_tests/test_hypothesis_interaction.py::test_mark_outer PASSED [ 79%] pytest_trio/_tests/test_hypothesis_interaction.py::test_mark_and_parametrize[1] PASSED [ 81%] pytest_trio/_tests/test_hypothesis_interaction.py::test_mark_and_parametrize[2] PASSED [ 83%] pytest_trio/_tests/test_hypothesis_interaction.py::test_the_trio_scheduler_is_deterministic_under_hypothesis PASSED [ 84%] pytest_trio/_tests/test_hypothesis_interaction.py::test_the_trio_scheduler_is_not_deterministic <- ../usr/lib/python3.8/site-packages/trio/tests/test_scheduler_determinism.py PASSED [ 86%] pytest_trio/_tests/test_hypothesis_interaction.py::test_the_trio_scheduler_is_deterministic_if_seeded <- ../usr/lib/python3.8/site-packages/trio/tests/test_scheduler_determinism.py PASSED [ 88%] pytest_trio/_tests/test_sync_fixture.py::test_single_sync_fixture PASSED [ 90%] pytest_trio/_tests/test_sync_fixture.py::test_single_yield_fixture PASSED [ 92%] pytest_trio/_tests/test_sync_fixture.py::test_single_yield_fixture_with_async_deps PASSED [ 94%] pytest_trio/_tests/test_sync_fixture.py::test_sync_yield_fixture_crashed_teardown_allow_other_teardowns PASSED [ 96%] pytest_trio/_tests/test_trio_mode.py::test_trio_mode[enable_trio_mode_via_pytest_ini] PASSED [ 98%] pytest_trio/_tests/test_trio_mode.py::test_trio_mode[enable_trio_mode_via_conftest_py] PASSED [100%] ----------- coverage: platform linux, python 3.8.5-final-0 ----------- Name Stmts Miss Branch BrPart Cover --------------------------------------------------------------------------------------- pytest_trio/__init__.py 3 3 0 0 0.0% pytest_trio/_tests/__init__.py 0 0 0 0 100.0% pytest_trio/_tests/conftest.py 1 0 0 0 100.0% pytest_trio/_tests/helpers.py 6 0 0 0 100.0% pytest_trio/_tests/test_async_fixture.py 22 0 0 0 100.0% pytest_trio/_tests/test_async_yield_fixture.py 41 0 4 0 100.0% pytest_trio/_tests/test_basic.py 14 0 0 0 100.0% pytest_trio/_tests/test_clock_fixture.py 10 0 2 0 100.0% pytest_trio/_tests/test_contextvars.py 26 0 0 0 100.0% pytest_trio/_tests/test_fixture_mistakes.py 34 0 0 0 100.0% pytest_trio/_tests/test_fixture_names.py 12 0 2 0 100.0% pytest_trio/_tests/test_fixture_nursery.py 15 0 0 0 100.0% pytest_trio/_tests/test_fixture_ordering.py 29 0 2 0 100.0% pytest_trio/_tests/test_hypothesis_interaction.py 34 0 0 0 100.0% pytest_trio/_tests/test_sync_fixture.py 20 0 0 0 100.0% pytest_trio/_tests/test_trio_mode.py 9 0 0 0 100.0% pytest_trio/_version.py 1 1 0 0 0.0% pytest_trio/enable_trio_mode.py 6 0 0 0 100.0% pytest_trio/plugin.py 206 47 73 0 83.2% --------------------------------------------------------------------------------------- TOTAL 489 51 83 0 91.1% =========================== short test summary info ============================ XFAIL pytest_trio/_tests/test_async_fixture.py::test_raise_in_async_fixture_cause_pytest_error Not implemented yet XFAIL pytest_trio/_tests/test_basic.py::test_sync_function_with_trio_mark Raises pytest internal error so far... ======================== 51 passed, 2 xfailed in 5.13s ========================= Removing intermediate container 1e5b1193849d ---> 9c3ffc03ec8a Successfully built 9c3ffc03ec8a Successfully tagged hmm:latest ```

[PureTryOut]

Well this has nothing to do with Docker really, Alpine is used for more things :wink:

I gave your command a shot and it failed, although differently:

ValueError: Plugin already registered: pytest_trio.plugin=<module 'pytest_trio.plugin' from '/home/bart/Documents/Git/alpine/aports/community/py3-pytest-trio/src/pytest-trio-0.6.0/pytest_trio/plugin.py'>

Strange that it works on the Dockerfile, I don't really do anything different...

[altendky]

Sorry for piling on with the ignorance there... and actually I recreated the same issue outside in my Ubuntu install.

Could you share the full command line and output anyways? Also include python -m pip freeze for the Python that the pytest is running from. And type python and head $(which pytest). Adjust all as needed so as to have them using the same Python. I'm looking to make sure pytest-trio isn't somehow installed now since the error sounds like it is and the PYTEST_PLUGINS is now redundant with the entry point plugin specification.

Or... maybe just seeing more stuff will help my light bulb turn on.