public async Task RegisterAdvicePlayback_SavesUpdatedPlaybacksMemoInSessionData()
{
// Arrange
var sessionDataServiceMock = new Mock <ISessionDataService>();
sessionDataServiceMock.Setup(x => x.GetData <PlaylistAdviserMemo>("PlaylistAdviserData", CancellationToken.None))
.ReturnsAsync(new PlaylistAdviserMemo(playbacksSinceHighlyRatedSongsPlaylist: 3, playbacksSinceFavoriteAdviseGroup: 5));
var target = new CompositePlaylistAdviser(StubDiscGrouper(), StubEmptyPlaylistAdviser(), StubEmptyPlaylistAdviser(),
StubEmptyPlaylistAdviser(), sessionDataServiceMock.Object, Options.Create(new AdviserSettings()));
// This call is required for initializing playbacks memo.
await target.Advise(Enumerable.Empty <DiscModel>(), 30, CancellationToken.None);
// Act
await target.RegisterAdvicePlayback(AdvisedPlaylist.ForAdviseSet(CreateTestAdviseSet(1)), CancellationToken.None);
// Assert
Func <PlaylistAdviserMemo, bool> validateSavedMemo = memo => memo.PlaybacksSinceHighlyRatedSongsPlaylist == 4 && memo.PlaybacksSinceFavoriteAdviseGroup == 6;
sessionDataServiceMock.Verify(x => x.SaveData("PlaylistAdviserData", It.Is <PlaylistAdviserMemo>(memo => validateSavedMemo(memo)), CancellationToken.None), Times.Once);
}
public async Task Advise_IfAdvisesForFavoriteAdviseGroupsProvided_AdvisesAdviseSetFromFavoriteAdviseGroupsAtConfiguredIntervals()
{
// Arrange
var settings = new AdviserSettings
{
PlaybacksBetweenFavoriteAdviseGroups = 10,
};
var favoriteAdviseGroupAdvise1 = AdvisedPlaylist.ForAdviseSetFromFavoriteAdviseGroup(CreateTestAdviseSet(101));
var favoriteAdviseGroupAdvise2 = AdvisedPlaylist.ForAdviseSetFromFavoriteAdviseGroup(CreateTestAdviseSet(102));
var rankBasedAdviserStub = new Mock <IPlaylistAdviser>();
rankBasedAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(Enumerable.Range(0, 100).Select(i => AdvisedPlaylist.ForAdviseSet(CreateTestAdviseSet(i))).ToList());
var favoriteAdviseGroupsAdviserStub = new Mock <IPlaylistAdviser>();
favoriteAdviseGroupsAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(new[] { favoriteAdviseGroupAdvise1, favoriteAdviseGroupAdvise2 });
var target = new CompositePlaylistAdviser(StubDiscGrouper(), rankBasedAdviserStub.Object, StubEmptyPlaylistAdviser(),
favoriteAdviseGroupsAdviserStub.Object, Mock.Of <ISessionDataService>(), Options.Create(settings));
// Act
var advises = (await target.Advise(Enumerable.Empty <DiscModel>(), 30, CancellationToken.None)).ToList();
// Assert
advises.Where(x => x.AdvisedPlaylistType == AdvisedPlaylistType.AdviseSetFromFavoriteAdviseGroup).Should().HaveCount(2);
advises[0].Should().BeSameAs(favoriteAdviseGroupAdvise1);
advises[10].Should().BeSameAs(favoriteAdviseGroupAdvise2);
}
public async Task Advise_MixesDifferentAdviseTypesCorrectly()
{
// Arrange
var highlyRatedSongsAdvise1 = AdvisedPlaylist.ForHighlyRatedSongs(Enumerable.Empty <SongModel>());
var highlyRatedSongsAdvise2 = AdvisedPlaylist.ForHighlyRatedSongs(Enumerable.Empty <SongModel>());
var favoriteAdviseGroupAdvise1 = AdvisedPlaylist.ForAdviseSetFromFavoriteAdviseGroup(CreateTestAdviseSet(101));
var favoriteAdviseGroupAdvise2 = AdvisedPlaylist.ForAdviseSetFromFavoriteAdviseGroup(CreateTestAdviseSet(102));
var rankedBasedAdvises = Enumerable.Range(1, 10).Select(i => AdvisedPlaylist.ForAdviseSet(CreateTestAdviseSet(i))).ToList();
var rankBasedAdviserStub = new Mock <IPlaylistAdviser>();
rankBasedAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>())).ReturnsAsync(rankedBasedAdvises);
var highlyRatedSongsAdviserStub = new Mock <IPlaylistAdviser>();
highlyRatedSongsAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(new[] { highlyRatedSongsAdvise1, highlyRatedSongsAdvise2 });
var favoriteAdviseGroupsAdviserStub = new Mock <IPlaylistAdviser>();
favoriteAdviseGroupsAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(new[] { favoriteAdviseGroupAdvise1, favoriteAdviseGroupAdvise2 });
var settings = new AdviserSettings
{
PlaybacksBetweenFavoriteAdviseGroups = 5,
HighlyRatedSongsAdviser = new HighlyRatedSongsAdviserSettings
{
PlaybacksBetweenHighlyRatedSongs = 10,
},
};
var target = new CompositePlaylistAdviser(StubDiscGrouper(), rankBasedAdviserStub.Object, highlyRatedSongsAdviserStub.Object,
favoriteAdviseGroupsAdviserStub.Object, Mock.Of <ISessionDataService>(), Options.Create(settings));
// Act
var advises = (await target.Advise(Enumerable.Empty <DiscModel>(), 30, CancellationToken.None)).ToList();
// Assert
var expectedAdvises = new[]
{
highlyRatedSongsAdvise1,
favoriteAdviseGroupAdvise1,
rankedBasedAdvises[0], rankedBasedAdvises[1], rankedBasedAdvises[2], rankedBasedAdvises[3],
favoriteAdviseGroupAdvise2,
rankedBasedAdvises[4], rankedBasedAdvises[5], rankedBasedAdvises[6],
highlyRatedSongsAdvise2,
rankedBasedAdvises[7], rankedBasedAdvises[8], rankedBasedAdvises[9],
};
advises.Should().BeEquivalentTo(expectedAdvises);
}
public async Task Advise_IfPlaylistAdviserMemoIsLoaded_UsesPreviousPlaybacksSinceHighlyRatedSongs()
{
// Arrange
var settings = new AdviserSettings
{
HighlyRatedSongsAdviser = new HighlyRatedSongsAdviserSettings
{
PlaybacksBetweenHighlyRatedSongs = 10,
},
};
var highlyRatedSongsAdvise1 = AdvisedPlaylist.ForHighlyRatedSongs(Enumerable.Empty <SongModel>());
var highlyRatedSongsAdvise2 = AdvisedPlaylist.ForHighlyRatedSongs(Enumerable.Empty <SongModel>());
var rankBasedAdviserStub = new Mock <IPlaylistAdviser>();
rankBasedAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(Enumerable.Range(0, 100).Select(i => AdvisedPlaylist.ForAdviseSet(CreateTestAdviseSet(i))).ToList());
var highlyRatedSongsAdviserStub = new Mock <IPlaylistAdviser>();
highlyRatedSongsAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(new[] { highlyRatedSongsAdvise1, highlyRatedSongsAdvise2 });
var sessionDataServiceStub = new Mock <ISessionDataService>();
sessionDataServiceStub.Setup(x => x.GetData <PlaylistAdviserMemo>("PlaylistAdviserData", CancellationToken.None))
.ReturnsAsync(new PlaylistAdviserMemo(playbacksSinceHighlyRatedSongsPlaylist: 2, playbacksSinceFavoriteAdviseGroup: 0));
var target = new CompositePlaylistAdviser(StubDiscGrouper(), rankBasedAdviserStub.Object, highlyRatedSongsAdviserStub.Object,
StubEmptyPlaylistAdviser(), sessionDataServiceStub.Object, Options.Create(settings));
// Act
var advises = (await target.Advise(Enumerable.Empty <DiscModel>(), 30, CancellationToken.None)).ToList();
// Assert
advises.Where(x => x.AdvisedPlaylistType == AdvisedPlaylistType.HighlyRatedSongs).Should().HaveCount(2);
advises[7].Should().BeSameAs(highlyRatedSongsAdvise1);
advises[17].Should().BeSameAs(highlyRatedSongsAdvise2);
}
public async Task Advise_SkipsDuplicatedAdviseSetsBetweenAdvisers()
{
// Arrange
var settings = new AdviserSettings
{
PlaybacksBetweenFavoriteAdviseGroups = 10,
};
var adviseSet1 = CreateTestAdviseSet(101);
var adviseSet2 = CreateTestAdviseSet(102);
var favoriteAdviseGroupAdvise1 = AdvisedPlaylist.ForAdviseSetFromFavoriteAdviseGroup(adviseSet1);
var favoriteAdviseGroupAdvise2 = AdvisedPlaylist.ForAdviseSetFromFavoriteAdviseGroup(adviseSet2);
var rankedBasedAdvises = Enumerable.Range(0, 10).Select(i => AdvisedPlaylist.ForAdviseSet(CreateTestAdviseSet(i)))
.Concat(new[] { AdvisedPlaylist.ForAdviseSet(adviseSet1) })
.Concat(Enumerable.Range(10, 20).Select(i => AdvisedPlaylist.ForAdviseSet(CreateTestAdviseSet(i))))
.Concat(new[] { AdvisedPlaylist.ForAdviseSet(adviseSet2) })
.ToList();
var rankBasedAdviserStub = new Mock <IPlaylistAdviser>();
rankBasedAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>())).ReturnsAsync(rankedBasedAdvises);
var favoriteAdviseGroupsAdviserStub = new Mock <IPlaylistAdviser>();
favoriteAdviseGroupsAdviserStub.Setup(x => x.Advise(It.IsAny <IEnumerable <AdviseGroupContent> >(), It.IsAny <PlaybacksInfo>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(new[] { favoriteAdviseGroupAdvise1, favoriteAdviseGroupAdvise2 });
var target = new CompositePlaylistAdviser(StubDiscGrouper(), rankBasedAdviserStub.Object, StubEmptyPlaylistAdviser(),
favoriteAdviseGroupsAdviserStub.Object, Mock.Of <ISessionDataService>(), Options.Create(settings));
// Act
var advises = (await target.Advise(Enumerable.Empty <DiscModel>(), 30, CancellationToken.None)).ToList();
// Assert
advises.Should().ContainSingle(a => a.AdviseSet == adviseSet1);
advises.Should().ContainSingle(a => a.AdviseSet == adviseSet2);
}