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from playlist import Playlist
class MockPlayer:
def __init__(self):
self.songSetByCallback = None
def setCurrentSong(self, path):
self.songSetByCallback = path
def test_addAndSelectOneSong():
songAddedByUser = "/path/to/song"
mockPlayer = MockPlayer()
uut = Playlist(mockPlayer)
uut.addSong(songAddedByUser)
uut.setCurrentSong(0)
assert songAddedByUser == mockPlayer.songSetByCallback
assert uut.getCurrentSong() == songAddedByUser
assert uut.getSongs() == [songAddedByUser]
def test_addTwoSongsAndSelectBoth():
songAddedByUser = ["/path/to/song", "/path/to/second/song"]
mockPlayer = MockPlayer()
uut = Playlist(mockPlayer)
uut.addSong(songAddedByUser[0])
uut.addSong(songAddedByUser[1])
assert uut.getSongs() == songAddedByUser
uut.setCurrentSong(0)
assert songAddedByUser[0] == mockPlayer.songSetByCallback
assert uut.getCurrentSong() == songAddedByUser[0]
uut.setCurrentSong(1)
assert songAddedByUser[1] == mockPlayer.songSetByCallback
assert uut.getCurrentSong() == songAddedByUser[1]
def test_firstAddedSongIsNotSelected():
songAddedByUser = "/path/to/song"
mockPlayer = MockPlayer()
uut = Playlist(mockPlayer)
uut.addSong(songAddedByUser)
assert mockPlayer.songSetByCallback == None
assert uut.getCurrentSong() == None
assert uut.getSongs() == [songAddedByUser]
def test_invalidSongSelection():
songAddedByUser = "/path/to/song"
mockPlayer = MockPlayer()
uut = Playlist(mockPlayer)
assert mockPlayer.songSetByCallback == None
assert uut.getCurrentSong() == None
uut.setCurrentSong(10)
assert mockPlayer.songSetByCallback == None
assert uut.getCurrentSong() == None
uut.addSong(songAddedByUser)
uut.setCurrentSong(10)
assert mockPlayer.songSetByCallback == None
assert uut.getCurrentSong() == None
assert uut.getSongs() == [songAddedByUser]
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