Register flaky pytest marker.

anntzer · anntzer · commit bce1bad9a3a5 · 2019-05-28T12:32:58.000+02:00
Otherwise, running the test suite without installing pytest-rerunfailures now results in _____________________________ ERROR collecting lib/matplotlib/tests/test_backend_ps.py _____________________________ lib/matplotlib/tests/test_backend_ps.py:29: in <module> @pytest.mark.flaky(reruns=3) ../../../.local/lib/python3.7/site-packages/_pytest/mark/structures.py:324: in __getattr__ PytestUnknownMarkWarning, E _pytest.warning_types.PytestUnknownMarkWarning: Unknown pytest.mark.flaky - is this a typo? You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/latest/mark.html collected 0 items / 1 errors (The alternative is to add a hard requirement on pytest-rerunfailures to run the test suite, but that seems overkill.)
diff --git a/pytest.ini b/pytest.ini
@@ -5,10 +5,11 @@ testpaths = lib
 python_files = test_*.py
 
 markers =
+    flaky: (Provided by pytest-rerunfailures.)
     backend: Set alternate Matplotlib backend temporarily.
     style: Set alternate Matplotlib style temporarily.
-    baseline_images: Compare output against a known reference
-    pytz: Tests that require pytz to be installed
+    baseline_images: Compare output against a known reference.
+    pytz: Tests that require pytz to be installed.
 
 filterwarnings =
     error
