test_recwarn.py 文件源码

def test_invalid_enter_exit(self):
        # wrap this test in WarningsRecorder to ensure warning state gets reset
        with WarningsRecorder():
            with pytest.raises(RuntimeError):
                rec = WarningsRecorder()
                rec.__exit__(None, None, None)  # can't exit before entering

            with pytest.raises(RuntimeError):
                rec = WarningsRecorder()
                with rec:
                    with rec:
                        pass  # can't enter twice

#
# ============ test pytest.deprecated_call() ==============
#