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from playlist import Playlist
def test_addAndSelectOneSong():
songAddedByUser = "/path/to/song"
songSetByCallback = None
def testCallback(song):
nonlocal songSetByCallback
songSetByCallback = song
uut = Playlist(testCallback)
uut.addSong(songAddedByUser)
uut.setCurrentSong(0)
assert songAddedByUser == songSetByCallback
assert uut.getCurrentSong() == songAddedByUser
assert uut.getSongs() == [songAddedByUser]
def test_addTwoSongsAndSelectBoth():
songAddedByUser = ["/path/to/song", "/path/to/second/song"]
songSetByCallback = None
def testCallback(song):
nonlocal songSetByCallback
songSetByCallback = song
uut = Playlist(testCallback)
uut.addSong(songAddedByUser[0])
uut.addSong(songAddedByUser[1])
assert uut.getSongs() == songAddedByUser
uut.setCurrentSong(0)
assert songAddedByUser[0] == songSetByCallback
assert uut.getCurrentSong() == songAddedByUser[0]
uut.setCurrentSong(1)
assert songAddedByUser[1] == songSetByCallback
assert uut.getCurrentSong() == songAddedByUser[1]
def test_firstAddedSongIsNotSelected():
songAddedByUser = "/path/to/song"
songSetByCallback = None
def testCallback(song):
nonlocal songSetByCallback
songSetByCallback = song
uut = Playlist(testCallback)
uut.addSong(songAddedByUser)
assert songSetByCallback == None
assert uut.getCurrentSong() == None
assert uut.getSongs() == [songAddedByUser]
def test_invalidSongSelection():
songAddedByUser = "/path/to/song"
songSetByCallback = None
def testCallback(song):
nonlocal songSetByCallback
songSetByCallback = song
uut = Playlist(testCallback)
assert songSetByCallback == None
assert uut.getCurrentSong() == None
uut.setCurrentSong(10)
assert songSetByCallback == None
assert uut.getCurrentSong() == None
uut.addSong(songAddedByUser)
uut.setCurrentSong(10)
assert songSetByCallback == None
assert uut.getCurrentSong() == None
assert uut.getSongs() == [songAddedByUser]
def test_clearPlaylist():
songAddedByUser = ["/path/to/song", "/path/to/second/song"]
def dummy(index):
pass
uut = Playlist(dummy)
for s in songAddedByUser:
uut.addSong(s)
uut.setCurrentSong(0)
assert uut.getSongs() == songAddedByUser
assert uut.getCurrentSong() == songAddedByUser[0]
uut.clear()
assert uut.getSongs() == []
assert uut.getCurrentSong() == None
def test_nextSong():
songAddedByUser = ["/path/to/song", "/path/to/second/song"]
uut = Playlist(lambda index: None)
for s in songAddedByUser:
uut.addSong(s)
assert uut.getCurrentSong() == None
uut.nextSong()
assert uut.getCurrentSong() == songAddedByUser[0]
uut.nextSong()
assert uut.getCurrentSong() == songAddedByUser[1]
uut.nextSong()
assert uut.getCurrentSong() == songAddedByUser[1]
def test_previousSong():
songAddedByUser = ["/path/to/song", "/path/to/second/song"]
uut = Playlist(lambda index: None)
for s in songAddedByUser:
uut.addSong(s)
assert uut.getCurrentSong() == None
uut.previousSong()
assert uut.getCurrentSong() == songAddedByUser[0]
uut.previousSong()
assert uut.getCurrentSong() == songAddedByUser[0]
uut.setCurrentSong(1)
assert uut.getCurrentSong() == songAddedByUser[1]
uut.previousSong()
assert uut.getCurrentSong() == songAddedByUser[0]
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