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playback_test.py
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playback_test.py
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from __future__ import unicode_literals
import mock
import unittest
from mopidy import backend, core
from mopidy.models import Track
class CorePlaybackTest(unittest.TestCase):
def setUp(self):
self.backend1 = mock.Mock()
self.backend1.uri_schemes.get.return_value = ['dummy1']
self.playback1 = mock.Mock(spec=backend.PlaybackProvider)
self.playback1.get_time_position().get.return_value = 1000
self.playback1.reset_mock()
self.backend1.playback = self.playback1
self.backend2 = mock.Mock()
self.backend2.uri_schemes.get.return_value = ['dummy2']
self.playback2 = mock.Mock(spec=backend.PlaybackProvider)
self.playback2.get_time_position().get.return_value = 2000
self.playback2.reset_mock()
self.backend2.playback = self.playback2
# A backend without the optional playback provider
self.backend3 = mock.Mock()
self.backend3.uri_schemes.get.return_value = ['dummy3']
self.backend3.has_playback().get.return_value = False
self.tracks = [
Track(uri='dummy1:a', length=40000),
Track(uri='dummy2:a', length=40000),
Track(uri='dummy3:a', length=40000), # Unplayable
Track(uri='dummy1:b', length=40000),
]
self.core = core.Core(audio=None, backends=[
self.backend1, self.backend2, self.backend3])
self.core.tracklist.add(self.tracks)
self.tl_tracks = self.core.tracklist.tl_tracks
self.unplayable_tl_track = self.tl_tracks[2]
# TODO Test get_current_tl_track
# TODO Test get_current_track
# TODO Test state
def test_play_selects_dummy1_backend(self):
self.core.playback.play(self.tl_tracks[0])
self.playback1.play.assert_called_once_with(self.tracks[0])
self.assertFalse(self.playback2.play.called)
def test_play_selects_dummy2_backend(self):
self.core.playback.play(self.tl_tracks[1])
self.assertFalse(self.playback1.play.called)
self.playback2.play.assert_called_once_with(self.tracks[1])
def test_play_skips_to_next_on_unplayable_track(self):
self.core.playback.play(self.unplayable_tl_track)
self.playback1.play.assert_called_once_with(self.tracks[3])
self.assertFalse(self.playback2.play.called)
self.assertEqual(
self.core.playback.current_tl_track, self.tl_tracks[3])
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_play_when_stopped_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='stopped', new_state='playing'),
mock.call(
'track_playback_started', tl_track=self.tl_tracks[0]),
])
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_play_when_playing_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
listener_mock.reset_mock()
self.core.playback.play(self.tl_tracks[3])
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='playing', new_state='stopped'),
mock.call(
'track_playback_ended',
tl_track=self.tl_tracks[0], time_position=1000),
mock.call(
'playback_state_changed',
old_state='stopped', new_state='playing'),
mock.call(
'track_playback_started', tl_track=self.tl_tracks[3]),
])
def test_pause_selects_dummy1_backend(self):
self.core.playback.play(self.tl_tracks[0])
self.core.playback.pause()
self.playback1.pause.assert_called_once_with()
self.assertFalse(self.playback2.pause.called)
def test_pause_selects_dummy2_backend(self):
self.core.playback.play(self.tl_tracks[1])
self.core.playback.pause()
self.assertFalse(self.playback1.pause.called)
self.playback2.pause.assert_called_once_with()
def test_pause_changes_state_even_if_track_is_unplayable(self):
self.core.playback.current_tl_track = self.unplayable_tl_track
self.core.playback.pause()
self.assertEqual(self.core.playback.state, core.PlaybackState.PAUSED)
self.assertFalse(self.playback1.pause.called)
self.assertFalse(self.playback2.pause.called)
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_pause_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
listener_mock.reset_mock()
self.core.playback.pause()
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='playing', new_state='paused'),
mock.call(
'track_playback_paused',
tl_track=self.tl_tracks[0], time_position=1000),
])
def test_resume_selects_dummy1_backend(self):
self.core.playback.play(self.tl_tracks[0])
self.core.playback.pause()
self.core.playback.resume()
self.playback1.resume.assert_called_once_with()
self.assertFalse(self.playback2.resume.called)
def test_resume_selects_dummy2_backend(self):
self.core.playback.play(self.tl_tracks[1])
self.core.playback.pause()
self.core.playback.resume()
self.assertFalse(self.playback1.resume.called)
self.playback2.resume.assert_called_once_with()
def test_resume_does_nothing_if_track_is_unplayable(self):
self.core.playback.current_tl_track = self.unplayable_tl_track
self.core.playback.state = core.PlaybackState.PAUSED
self.core.playback.resume()
self.assertEqual(self.core.playback.state, core.PlaybackState.PAUSED)
self.assertFalse(self.playback1.resume.called)
self.assertFalse(self.playback2.resume.called)
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_resume_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
self.core.playback.pause()
listener_mock.reset_mock()
self.core.playback.resume()
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='paused', new_state='playing'),
mock.call(
'track_playback_resumed',
tl_track=self.tl_tracks[0], time_position=1000),
])
def test_stop_selects_dummy1_backend(self):
self.core.playback.play(self.tl_tracks[0])
self.core.playback.stop()
self.playback1.stop.assert_called_once_with()
self.assertFalse(self.playback2.stop.called)
def test_stop_selects_dummy2_backend(self):
self.core.playback.play(self.tl_tracks[1])
self.core.playback.stop()
self.assertFalse(self.playback1.stop.called)
self.playback2.stop.assert_called_once_with()
def test_stop_changes_state_even_if_track_is_unplayable(self):
self.core.playback.current_tl_track = self.unplayable_tl_track
self.core.playback.state = core.PlaybackState.PAUSED
self.core.playback.stop()
self.assertEqual(self.core.playback.state, core.PlaybackState.STOPPED)
self.assertFalse(self.playback1.stop.called)
self.assertFalse(self.playback2.stop.called)
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_stop_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
listener_mock.reset_mock()
self.core.playback.stop()
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='playing', new_state='stopped'),
mock.call(
'track_playback_ended',
tl_track=self.tl_tracks[0], time_position=1000),
])
# TODO Test next() more
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_next_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
listener_mock.reset_mock()
self.core.playback.next()
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='playing', new_state='stopped'),
mock.call(
'track_playback_ended',
tl_track=self.tl_tracks[0], time_position=mock.ANY),
mock.call(
'playback_state_changed',
old_state='stopped', new_state='playing'),
mock.call(
'track_playback_started', tl_track=self.tl_tracks[1]),
])
# TODO Test previous() more
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_previous_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[1])
listener_mock.reset_mock()
self.core.playback.previous()
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='playing', new_state='stopped'),
mock.call(
'track_playback_ended',
tl_track=self.tl_tracks[1], time_position=mock.ANY),
mock.call(
'playback_state_changed',
old_state='stopped', new_state='playing'),
mock.call(
'track_playback_started', tl_track=self.tl_tracks[0]),
])
# TODO Test on_end_of_track() more
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_on_end_of_track_emits_events(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
listener_mock.reset_mock()
self.core.playback.on_end_of_track()
self.assertListEqual(
listener_mock.send.mock_calls,
[
mock.call(
'playback_state_changed',
old_state='playing', new_state='stopped'),
mock.call(
'track_playback_ended',
tl_track=self.tl_tracks[0], time_position=mock.ANY),
mock.call(
'playback_state_changed',
old_state='stopped', new_state='playing'),
mock.call(
'track_playback_started', tl_track=self.tl_tracks[1]),
])
def test_seek_selects_dummy1_backend(self):
self.core.playback.play(self.tl_tracks[0])
self.core.playback.seek(10000)
self.playback1.seek.assert_called_once_with(10000)
self.assertFalse(self.playback2.seek.called)
def test_seek_selects_dummy2_backend(self):
self.core.playback.play(self.tl_tracks[1])
self.core.playback.seek(10000)
self.assertFalse(self.playback1.seek.called)
self.playback2.seek.assert_called_once_with(10000)
def test_seek_fails_for_unplayable_track(self):
self.core.playback.current_tl_track = self.unplayable_tl_track
self.core.playback.state = core.PlaybackState.PLAYING
success = self.core.playback.seek(1000)
self.assertFalse(success)
self.assertFalse(self.playback1.seek.called)
self.assertFalse(self.playback2.seek.called)
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_seek_emits_seeked_event(self, listener_mock):
self.core.playback.play(self.tl_tracks[0])
listener_mock.reset_mock()
self.core.playback.seek(1000)
listener_mock.send.assert_called_once_with(
'seeked', time_position=1000)
def test_time_position_selects_dummy1_backend(self):
self.core.playback.play(self.tl_tracks[0])
self.core.playback.seek(10000)
self.core.playback.time_position
self.playback1.get_time_position.assert_called_once_with()
self.assertFalse(self.playback2.get_time_position.called)
def test_time_position_selects_dummy2_backend(self):
self.core.playback.play(self.tl_tracks[1])
self.core.playback.seek(10000)
self.core.playback.time_position
self.assertFalse(self.playback1.get_time_position.called)
self.playback2.get_time_position.assert_called_once_with()
def test_time_position_returns_0_if_track_is_unplayable(self):
self.core.playback.current_tl_track = self.unplayable_tl_track
result = self.core.playback.time_position
self.assertEqual(result, 0)
self.assertFalse(self.playback1.get_time_position.called)
self.assertFalse(self.playback2.get_time_position.called)
# TODO Test on_tracklist_change
# TODO Test volume
@mock.patch(
'mopidy.core.playback.listener.CoreListener', spec=core.CoreListener)
def test_set_volume_emits_volume_changed_event(self, listener_mock):
self.core.playback.set_volume(10)
listener_mock.reset_mock()
self.core.playback.set_volume(20)
listener_mock.send.assert_called_once_with('volume_changed', volume=20)
def test_mute(self):
self.assertEqual(self.core.playback.mute, False)
self.core.playback.mute = True
self.assertEqual(self.core.playback.mute, True)