def test_error(self):
        d = self.run_script(FailScript)

        def got_messages(messages):
            assertContainsFields(self, messages[1],
                                 {u"message_type": u"twisted:log",
                                  u"error": True})
            self.assertTrue(messages[1][u"message"].startswith(
                u"Unhandled Error\nTraceback (most recent call last):\n"))
            self.assertTrue(messages[1][u"message"].endswith(
                u"ZeroDivisionError: ono\n"))
        d.addCallback(got_messages)
        return d
A script that raises an exception exits, logging the error as an
dataset/ETHPy150Open ClusterHQ/flocker/flocker/common/functional/test_script.py/FlockerScriptRunnerTests.test_error