public void Test1()
{
// arrange
var playList = new string[] {
"Song 1",
"Song 2",
"Song 3",
"Song 4",
};
var player = new AudioPlayer(playList.ToList());
// act
player.ClickPlay();
player.ClickLock();
// assert
Assert.IsType <AudioPlayerLockedState>(player._state);
}
public void ClickPlayButton()
{
_audioPlayer.ClickPlay();
}