suppress warnings when pytest-run-parallel isn't available

ngoldbaum · jonathanunderwood · commit ebb04a3525e7 · 2026-04-09T13:11:39.000+01:00
diff --git a/tests/conftest.py b/tests/conftest.py
@@ -0,0 +1,13 @@
+try:
+    import pytest_run_parallel  # noqa: F401
+    PARALLEL_RUN_AVALIABLE = True
+except ModuleNotFoundError:
+    PARALLEL_RUN_AVALIABLE = False
+
+
+def pytest_configure(config):
+    if not PARALLEL_RUN_AVALIABLE:
+        config.addinivalue_line(
+            "markers",
+            "thread_unsafe: mark the test function as single-threaded",
+        )
