beforeEach(function() {
this.addMatchers({ toBePlaying: function(expectedSong) { var player = this.actual; return player.currentlyPlayingSong === expectedSong && player.isPlaying; } });
});
beforeEach(function() {
this.addMatchers({ toBePlaying: function(expectedSong) { var player = this.actual; return player.currentlyPlayingSong === expectedSong && player.isPlaying; } });
});