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import pytest
from notifier import Notifier
from player_mock import Player
@pytest.fixture
def mockPlayer():
return Player()
@pytest.fixture
def uut(mockPlayer):
return Notifier(mockPlayer)
def checkEvent(uut, event):
callbacks = 2
calledFlags = [False] * 2
def createCallback(i):
def cb():
nonlocal calledFlags
calledFlags[i] = True
return cb
for i in range(0, callbacks):
uut.registerCallback(event, createCallback(i))
assert not any(calledFlags)
uut.notify(event)
assert all(calledFlags)
def test_allEvents(uut):
checkEvent(uut, Notifier.PLAYING_STATE_EVENT)
def test_eventWithoutRegisteredCallbacks(uut):
uut.notify(Notifier.PLAYING_STATE_EVENT)
# expect no crash
def test_playingStateEventWithMockPlayer(uut, mockPlayer):
called = False
def callback():
nonlocal called
called = True
uut.registerCallback(Notifier.PLAYING_STATE_EVENT, callback)
assert not called
mockPlayer.simulatePlayingStateChanged()
assert called
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