def test_blocked_plugin_can_be_used(self,
                                        pytestpm: PytestPluginManager) -> None:
        pytestpm.consider_preparse(["xyz", "-p", "no:abc", "-p", "abc"])

        assert pytestpm.has_plugin("abc")
        assert not pytestpm.is_blocked("abc")
        assert not pytestpm.is_blocked("pytest_abc")