public void WhenSearchingForAnInvalidIdNullIsReturned()
{
var classUnderTest = new LyricStatisticsService(new Mock <IArtistRepository>().Object, null);
var result = classUnderTest.CalculateFor("invalid");
Assert.Null(result);
}
public void WhenArtistHasAMultipleWorksThisIsSearchedForAndTheNumberOfLyricsCountedAndAveraged()
{
const string ArtistsId = "Easy Artist Id";
const string ArtistsName = "Easy Artist Name";
const string SongName = "Some Song";
const string SongName2 = "Some Song2";
const string Lyrics = "I'm a simple song!";
const string Lyrics2 = "I'm another very very simple song!";
var works = new List <Works>
{
new Works
{
Id = "id",
Title = SongName
},
new Works
{
Id = "id2",
Title = SongName2
}
};
var worksCollection = new WorksCollection
{
Works = works,
ArtistName = ArtistsName
};
var artistRepo = new Mock <IArtistRepository>();
artistRepo.Setup(x => x.GetWorksFor(ArtistsId)).Returns(worksCollection);
var lyricsRepo = new Mock <ILyricsRepository>();
lyricsRepo.Setup(x => x.GetFor(ArtistsName, SongName)).Returns(Lyrics);
lyricsRepo.Setup(x => x.GetFor(ArtistsName, SongName2)).Returns(Lyrics2);
var classUnderTest = new LyricStatisticsService(artistRepo.Object, lyricsRepo.Object);
var results = classUnderTest.CalculateFor(ArtistsId);
Assert.Equal(5, results.AverageLyricsPerSong);
}