def test_startTaskNoLogger(self):
        messages = []
        add_destination(messages.append)
        self.addCleanup(remove_destination, messages.append)
        action = startTask(action_type="sys:do", key="value")
        assertContainsFields(self, messages[0],
                             {"task_uuid": action._identification["task_uuid"],
                              "task_level": [1],
                              "action_type": "sys:do",
                              "action_status": "started",
                              "key": "value"})
When no logger is given L{startTask} logs to the default ``Logger``.
dataset/ETHPy150Open ClusterHQ/eliot/eliot/tests/test_action.py/StartActionAndTaskTests.test_startTaskNoLogger