def test_add_songbooks(self):
"""
Test that adding songbooks to a song works correctly
"""
# GIVEN: A mocked song and songbook
song = Song()
song.songbook_entries = []
songbook = Book()
songbook.name = "Thy Word"
# WHEN: We add two songbooks to a Song
song.add_songbook_entry(songbook, "120")
song.add_songbook_entry(songbook, "550A")
# THEN: The song should have two songbook entries
self.assertEqual(len(song.songbook_entries), 2, 'There should be two Songbook entries.')
