test_logging.py 文件源码

def test_error_handling(self):
        h = TestStreamHandler(BadStream())
        r = logging.makeLogRecord({})
        old_raise = logging.raiseExceptions
        old_stderr = sys.stderr
        try:
            h.handle(r)
            self.assertIs(h.error_record, r)
            h = logging.StreamHandler(BadStream())
            sys.stderr = sio = io.StringIO()
            h.handle(r)
            self.assertIn('\nRuntimeError: deliberate mistake\n',
                          sio.getvalue())
            logging.raiseExceptions = False
            sys.stderr = sio = io.StringIO()
            h.handle(r)
            self.assertEqual('', sio.getvalue())
        finally:
            logging.raiseExceptions = old_raise
            sys.stderr = old_stderr

# -- The following section could be moved into a server_helper.py module
# -- if it proves to be of wider utility than just test_logging