Merge pull request #11650 from bluetech/tr-test-isolation

testing: fix isolation issue in `tr` fixture

Author: bluetech

testing/test_terminal.py

@@ -1802,7 +1802,7 @@ def test_failure():
 
 @pytest.fixture(scope="session")
 def tr() -> TerminalReporter:
-    config = _pytest.config._prepareconfig()
+    config = _pytest.config._prepareconfig([])
     return TerminalReporter(config)