Smoke test pytest-rerunfailures

tox.ini

@@ -130,6 +130,7 @@ deps =
     pytest-flakes
     pytest-html
     pytest-mock
+    pytest-rerunfailures
     pytest-sugar
     pytest-trio
     pytest-twisted
@@ -143,6 +144,7 @@ commands =
     pytest --cov=. simple_integration.py
     pytest --ds=django_settings simple_integration.py
     pytest --html=simple.html simple_integration.py
+    pytest --reruns 5 simple_integration.py
     pytest pytest_anyio_integration.py
     pytest pytest_asyncio_integration.py
     pytest pytest_mock_integration.py