def test_heartbeat_to_end(self):
testTask = Task()
# test heartbeat after start
testTask.start()
testTask.heartbeat(None)
testTask.heartbeat(None)
testTask.heartbeat(None)
testTask.end(None)
def test__transition_ValueError(self):
'''Test that the _transition method throws a ValueError when state is
an unknown value.
'''
task = Task()
task.state = None
with self.assertRaises(ValueError):
task._transition(None, None)
def test__transition_IllegalTransitionException(self):
'''Test that the _transition method throws an
IllegalTransitionException when the lifecycle methods are called in the
wrong order.
'''
task = Task()
def func(state, events):
task.state = state
for event in events:
with self.assertRaises(IllegalTransitionException) as cm:
task._transition(event, None) # pragma: no cover
self.assertEqual(state, cm.exception.state)
self.assertEqual(event, cm.exception.event)
events = (TaskEvent.HEARTBEAT, TaskEvent.END, TaskEvent.FAIL,)
func(TaskState.PENDING, events)
events = (TaskEvent.START,)
func(TaskState.RUNNING, events)
events = (
TaskEvent.START, TaskEvent.HEARTBEAT, TaskEvent.END,
TaskEvent.FAIL, TaskEvent.CANCEL,)
func(TaskState.STOPPED, events)
def test_lazy_heartbeat(self):
testTask = Task()
# Test failure to heartbeat before start, Illegal chage out of PENDING
cur_progress = None
# TRICKY: lazy heartbeat won't throw exception, None case ignored
testTask.lazy_heartbeat(cur_progress)
cur_progress = {'task':'thing', 'percent':'0'}
# TRICKY: lazy heartbeat throw exception progres is not None
with self.assertRaises(IllegalTransitionException):
testTask.lazy_heartbeat(cur_progress)
old_progress = cur_progress
# TRICKY: lazy heartbeat won't throw exception, dup progress ignored
testTask.lazy_heartbeat(cur_progress, old_progress)
new_progress = {'task':'thing','percent':'1'}
with self.assertRaises(IllegalTransitionException):
testTask.lazy_heartbeat(new_progress, cur_progress)
def test_events(self):
'''Test event delivery.'''
eventqueue = conveyor.event.geteventqueue()
task = Task()
startcallback = conveyor.event.Callback()
task.startevent.attach(startcallback)
heartbeatcallback = conveyor.event.Callback()
task.heartbeatevent.attach(heartbeatcallback)
endcallback = conveyor.event.Callback()
task.endevent.attach(endcallback)
failcallback = conveyor.event.Callback()
task.failevent.attach(failcallback)
cancelcallback = conveyor.event.Callback()
task.cancelevent.attach(cancelcallback)
runningcallback = conveyor.event.Callback()
task.runningevent.attach(runningcallback)
stoppedcallback = conveyor.event.Callback()
task.stoppedevent.attach(stoppedcallback)
callbacks = (
startcallback, heartbeatcallback, endcallback, failcallback,
cancelcallback, runningcallback, stoppedcallback)
self.assertFalse(startcallback.delivered)
self.assertFalse(heartbeatcallback.delivered)
self.assertFalse(endcallback.delivered)
self.assertFalse(failcallback.delivered)
self.assertFalse(cancelcallback.delivered)
self.assertFalse(runningcallback.delivered)
self.assertFalse(stoppedcallback.delivered)
task.start()
self._runeventqueue(eventqueue)
self.assertEqual(TaskState.RUNNING, task.state)
self.assertTrue(startcallback.delivered)
self.assertFalse(heartbeatcallback.delivered)
self.assertFalse(endcallback.delivered)
self.assertFalse(failcallback.delivered)
self.assertFalse(cancelcallback.delivered)
self.assertTrue(runningcallback.delivered)
self.assertFalse(stoppedcallback.delivered)
self._reset(callbacks)
task.progress = None
task.result = None
task.failure = None
task.heartbeat('progress')
self._runeventqueue(eventqueue)
self.assertEqual(TaskState.RUNNING, task.state)
self.assertEqual('progress', task.progress)
self.assertIsNone(task.result)
self.assertIsNone(task.failure)
self.assertFalse(startcallback.delivered)
self.assertTrue(heartbeatcallback.delivered)
self.assertFalse(endcallback.delivered)
self.assertFalse(failcallback.delivered)
self.assertFalse(cancelcallback.delivered)
self.assertFalse(runningcallback.delivered)
self.assertFalse(stoppedcallback.delivered)
self._reset(callbacks)
task.progress = None
task.result = None
task.failure = None
task.end('result')
self._runeventqueue(eventqueue)
self.assertEqual(TaskState.STOPPED, task.state)
self.assertIsNone(task.progress)
self.assertEqual('result', task.result)
self.assertIsNone(task.failure)
self.assertFalse(startcallback.delivered)
self.assertFalse(heartbeatcallback.delivered)
self.assertTrue(endcallback.delivered)
self.assertFalse(failcallback.delivered)
self.assertFalse(cancelcallback.delivered)
self.assertFalse(runningcallback.delivered)
self.assertTrue(stoppedcallback.delivered)
self._reset(callbacks)
task.progress = None
task.result = None
task.failure = None
task.state = TaskState.RUNNING
task.fail('failure')
self._runeventqueue(eventqueue)
self.assertEqual(TaskState.STOPPED, task.state)
self.assertIsNone(task.progress)
self.assertIsNone(task.result)
self.assertEqual('failure', task.failure)
self.assertFalse(startcallback.delivered)
self.assertFalse(heartbeatcallback.delivered)
self.assertFalse(endcallback.delivered)
self.assertTrue(failcallback.delivered)
self.assertFalse(cancelcallback.delivered)
self.assertFalse(runningcallback.delivered)
self.assertTrue(stoppedcallback.delivered)
self._reset(callbacks)
task.progress = None
task.result = None
task.failure = None
task.state = TaskState.PENDING
task.cancel()
self._runeventqueue(eventqueue)
self.assertEqual(TaskState.STOPPED, task.state)
self.assertIsNone(task.progress)
self.assertIsNone(task.result)
self.assertIsNone(task.failure)
self.assertFalse(startcallback.delivered)
self.assertFalse(heartbeatcallback.delivered)
self.assertFalse(endcallback.delivered)
self.assertFalse(failcallback.delivered)
self.assertTrue(cancelcallback.delivered)
self.assertFalse(runningcallback.delivered)
self.assertTrue(stoppedcallback.delivered)
self._reset(callbacks)
task.progress = None
task.result = None
task.failure = None
task.state = TaskState.RUNNING
task.cancel()
self._runeventqueue(eventqueue)
self.assertEqual(TaskState.STOPPED, task.state)
self.assertIsNone(task.progress)
self.assertIsNone(task.result)
self.assertIsNone(task.failure)
self.assertFalse(startcallback.delivered)
self.assertFalse(heartbeatcallback.delivered)
self.assertFalse(endcallback.delivered)
self.assertFalse(failcallback.delivered)
self.assertTrue(cancelcallback.delivered)
self.assertFalse(runningcallback.delivered)
self.assertTrue(stoppedcallback.delivered)
def test_heartbeat(self):
testTask = Task()
# Test failure to heartbeat before start, Illegal chage out of PENDING
cur_progress = None
with self.assertRaises(IllegalTransitionException):
testTask.heartbeat(cur_progress)
# test heartbeat after start
testTask.start()
testTask.heartbeat(cur_progress)
testTask.end(None)
with self.assertRaises(IllegalTransitionException):
testTask.heartbeat(cur_progress)
