We do not need to check coverage for this project.

--- pytest_mock-3.15.1/tox.ini.orig
+++ pytest_mock-3.15.1/tox.ini
@@ -4,13 +4,12 @@
 
 [testenv]
 deps =
-    coverage
     # Used for standalone mock support.
     mock
     pytest-asyncio
     pytest6: pytest==6.2.5
 commands =
-    coverage run --append --source={envsitepackagesdir}/pytest_mock -m pytest tests
+    python -m pytest tests
 
 [testenv:norewrite]
 commands =