def testLoadWithAllSelector(self):
"""Both elements are loaded with selector='all'."""
action = LoadMediaAction(selector='all', timeout_in_seconds=5)
action.WillRunAction(self._tab)
action.RunAction(self._tab)
self.assertTrue(self.eventFired('#video_1', 'canplaythrough'))
self.assertTrue(self.eventFired('#audio_1', 'canplaythrough'))
def testLoadWithSelector(self):
"""Only the element matching the selector is loaded."""
action = LoadMediaAction(selector='#audio_1', timeout_in_seconds=5)
action.WillRunAction(self._tab)
action.RunAction(self._tab)
self.assertFalse(self.eventFired('#video_1', 'canplaythrough'))
self.assertTrue(self.eventFired('#audio_1', 'canplaythrough'))
def testLoadWithNoSelector(self):
"""With no selector the first media element is loaded."""
action = LoadMediaAction(timeout_in_seconds=5)
action.WillRunAction(self._tab)
action.RunAction(self._tab)
self.assertTrue(self.eventFired('#video_1', 'canplaythrough'))
self.assertFalse(self.eventFired('#audio_1', 'canplaythrough'))
def testAwaitedEventIsConfigurable(self):
"""It's possible to wait for different events."""
action = LoadMediaAction(selector='#video_1', timeout_in_seconds=0.1,
event_to_await='loadedmetadata')
action.WillRunAction(self._tab)
action.RunAction(self._tab)
self.assertTrue(self.eventFired('#video_1', 'loadedmetadata'))
def testLoadRaisesAnExceptionOnTimeout(self):
"""The load action times out if the event does not fire."""
action = LoadMediaAction(selector='#video_1',
timeout_in_seconds=0.1,
event_to_await='a_nonexistent_event')
action.WillRunAction(self._tab)
self.assertRaises(py_utils.TimeoutException, action.RunAction,
self._tab)
def LoadMedia(self, selector=None, event_timeout_in_seconds=0,
event_to_await='canplaythrough'):
"""Invokes load() on media elements and awaits an event.
Args:
selector: A CSS selector describing the element. If none is
specified, play the first media element on the page. If the
selector matches more than 1 media element, all of them will
be played.
event_timeout_in_seconds: Maximum waiting time for the event to be fired.
0 means do not wait.
event_to_await: Which event to await. For example: 'canplaythrough' or
'loadedmetadata'.
Raises:
TimeoutException: If the maximum waiting time is exceeded.
"""
self._RunAction(LoadMediaAction(
selector=selector, timeout_in_seconds=event_timeout_in_seconds,
event_to_await=event_to_await))
