public void When_MovePrevious_SongListHasPreviousSongs_ReturnsCorrectSongs()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleNoLoop,
Playlist = _bigPlaylist
};
for (int i = 0; i < _nbSongs; i++)
{
songList.MoveNext();
}
// Act
var previousSongs = new List <SongDto>();
for (int i = 0; i < _nbSongs; i++)
{
var song = songList.MovePrevious().CurrentSong;
previousSongs.Add(song);
}
// Assert
for (int i = 0; i < _nbSongs; i++)
{
Assert.AreEqual($"{_songPrefixBig}{_nbSongs - 1 - i}", previousSongs[i].Title);
}
}
public void When_PlayModeSet_MovePreviousFollowingSongsContainsCorrectSongs()
{
// Arrange
int goBack = 5;
var songList = new SongList
{
PlayMode = _noShuffleLoopPlaylist,
Playlist = _bigPlaylist
};
for (int i = 0; i < _nbSongs; i++) // play some songs
{
songList.MoveNext();
}
for (int i = 0; i < goBack; i++) // go back 5 songs
{
songList.MovePrevious();
}
// Act
songList.PlayMode = _noShuffleNoLoop;
var songs = songList.GetFollowingSongs(_queueSize);
// Assert
for (int i = _nbSongs - goBack; i < _nbSongs; i++)
{
Assert.AreEqual($"{_songPrefixBig}{i}", songs[i - (_nbSongs - goBack)].Title);
}
}
public void When_CurrentSongGet_HasFollowingSongs_MovePreviousReturnsCorrectSong()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleLoopPlaylist,
Playlist = _smallPlaylist
};
// Act
var expected = songList.MoveNext().CurrentSong;
songList.MoveNext();
var actual = songList.MovePrevious().CurrentSong;
// Assert
Assert.AreEqual(expected, actual);
}
public void When_CurrentSong_PlayedLastSong_MoveNextReturnsNull()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleNoLoop,
Playlist = _smallPlaylist
};
// Act
for (int i = 0; i < _nbLessSongs; i++)
{
songList.MoveNext();
}
var actual = songList.MoveNext().CurrentSong;
// Assert
Assert.AreEqual(null, actual);
}
public void When_CurrentSong_HasNoFollowingSongs_MoveNextReturnsCorrectSong()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleLoopPlaylist,
Playlist = _smallPlaylist
};
var expected = _smallPlaylist.Songs[1];
// Act
for (int i = 0; i < _nbLessSongs; i++)
{
songList.MoveNext();
}
var actual = songList.MoveNext().CurrentSong;
// Assert
Assert.AreEqual(expected, actual);
}
public void When_MoveNext_PlayModeIsNoLoop_SongAtLoopEndIsNull()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleNoLoop,
Playlist = _smallPlaylist
};
for (int i = 0; i < _nbLessSongs; i++)
{
songList.MoveNext();
}
// Act
var song = songList.MoveNext().CurrentSong;
// Assert
Assert.IsNull(song);
}
public void When_MoveNextAndPlaylistSet_FollowingSongsContainsCorrectSongs()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleLoopPlaylist,
Playlist = _bigPlaylist
};
// Act
songList.MoveNext();
songList.Playlist = _smallPlaylist;
var songs = songList.GetFollowingSongs(_queueSize);
// Assert
for (int i = 0; i < _queueSize; i++)
{
Assert.AreEqual($"{_songPrefixSmall}{i % _nbLessSongs}", songs[i].Title);
}
}
public void When_MoveNext_SongListHasFollowingSongs_ReturnsCorrectSongs()
{
// Arrange
var songList = new SongList
{
PlayMode = _noShuffleLoopPlaylist,
Playlist = _bigPlaylist
};
// Act
var songsPlayed = new List <SongDto>();
for (int i = 0; i < _nbSongs * 2; i++)
{
songsPlayed.Add(songList.CurrentSong);
songList.MoveNext();
}
// Assert
for (int i = 0; i < _nbSongs; i++)
{
Assert.AreEqual($"{_songPrefixBig}{i % _nbSongs}", songsPlayed[i].Title);
}
}
