def test_save(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Two', 'U2', 'Epimeno', '7:32')
p = Playlist('Ala bala')
p.add_songs([s1, s2])
p.save()
self.assertTrue(os.path.isfile('./Ala-bala.json'))
def test_next_song_returns_next_song(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Two', 'U2', 'Epimeno', '7:32')
p = Playlist('Ala bala')
p.add_songs([s1, s2])
self.assertEqual(p.next_song(), s1)
self.assertEqual(p.next_song(), s2)
def test_playlist_total_length(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Warriors of the World', 'Manowar', 'Manowar album', '3:10')
p = Playlist('random songs')
p.add_songs([s1,s2])
result = p.total_length()
self.assertEqual(result , '7:48')
def test_show_artists_displays_correctly(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Two', 'U2', 'Epimeno', '7:32')
s3 = Song('Three', 'U2', 'Achtung Baby', '3:15')
s4 = Song('Warriors of the World', 'Manowar', 'Manowar album', '3:10')
p = Playlist('Ala bala')
p.add_songs([s1, s2, s3, s4])
expectedHistogram = {'U2': 3, 'Manowar': 1}
self.assertEqual(p.show_artists(), expectedHistogram)
def test_playlist_add_songs(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Warriors of the World', 'Manowar', 'Manowar album', '3:10')
s3 = Song('Chiki chiki ta', 'Kondio', 'Doko doko', '7:32')
songlist = [s1, s2, s3]
p = Playlist('mish mash')
p.add_songs(songlist)
for s in songlist:
self.assertIn(s, p.songslist)
def test_next_song_repeat_works(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Two', 'U2', 'Epimeno', '7:32')
s3 = Song('Three', 'U2', 'Achtung Baby', '3:15')
p = Playlist('Ala bala', repeat=True)
p.add_songs([s1, s2, s3])
self.assertEqual(p.next_song(), s1)
self.assertEqual(p.next_song(), s2)
self.assertEqual(p.next_song(), s3)
self.assertEqual(p.next_song(), s1)
def test_load(self):
s1 = Song('One', 'U2', 'Achtung Baby', '4:38')
s2 = Song('Two', 'U2', 'Epimeno', '7:32')
s3 = Song('Three', 'Kondio', 'Doko doko', '7:32')
p = Playlist('newplaylist')
newsongs = p.load('./Ala-bala.json')
os.remove("./Ala-bala.json")
p.add_songs(newsongs)
self.assertIn(s1, p.songslist)
self.assertIn(s2, p.songslist)
self.assertNotIn(s3, p.songslist)