public void CountWords_WhenSongLyricsIsNull_ShouldReturnZero()
{
var song = new Song();
var result = SongHelper.CountWords(song);
result.Should().Be(0);
}
public void CountWords_WhenSongIsInstrumental_ShouldWordCount()
{
var song = new Song {
Lyrics = "instrumental"
};
var result = SongHelper.CountWords(song);
result.Should().Be(1);
}
public void CountWords_WhenSongHasLyrics_ShouldWordCount()
{
var song = new Song {
Lyrics = "hello world"
};
var result = SongHelper.CountWords(song);
result.Should().Be(2);
}
public void CountWords_WhenSongLyricsIsEmpty_ShouldReturnZero()
{
var song = new Song {
Lyrics = string.Empty
};
var result = SongHelper.CountWords(song);
result.Should().Be(0);
}
private ArtistSongsStats ExtractStatsFromSongs(IEnumerable <Song> songs)
{
if (songs == null || !songs.Any())
{
return(new ArtistSongsStats());
}
var shortestSongWordCount = songs.Min(x => SongHelper.CountWords(x));
var shortestSong = songs.Where(x => SongHelper.CountWords(x) == shortestSongWordCount).FirstOrDefault();
var longestSongWordCount = songs.Max(x => SongHelper.CountWords(x));
var longestSong = songs.Where(x => SongHelper.CountWords(x) == longestSongWordCount).FirstOrDefault();
return(new ArtistSongsStats
{
SongsCount = songs.Count(),
AverageWordsInSongs = (int)songs.Average(s => SongHelper.CountWords(s)),
ShortestSongWordCount = shortestSongWordCount,
LongestSongWordCount = longestSongWordCount,
ShortestSong = shortestSong.Work.Title,
LongestSong = longestSong.Work.Title
});
}
public void CountWords_WhenSongIsNull_ShouldReturnZero()
{
var result = SongHelper.CountWords(null);
result.Should().Be(0);
}
