Files
Musify/backend/Tests/Musify.Application.Tests/Mixes/GenerateMixesForUserCommandHandlerTests.cs
T

88 lines
3.7 KiB
C#

using Microsoft.EntityFrameworkCore;
using Musify.Application.Mixes;
using Musify.Application.Tests.TestSupport;
using Musify.Domain.ValueObjects;
using Xunit;
namespace Musify.Application.Tests.Mixes;
public sealed class GenerateMixesForUserCommandHandlerTests : HandlerTestBase
{
private GenerateMixesForUserCommandHandler CreateHandler() => new(
Database, TestConfigurations.Mix(), NoOpLogger<GenerateMixesForUserCommandHandler>());
[Fact]
public async Task Handle_NoTracks_DoesNotCreateAnyMix()
{
var user = TestEntities.User();
await SeedAsync(user);
var result = await CreateHandler().Handle(new GenerateMixesForUserCommand(user.Id), TestContext.Current.CancellationToken);
Assert.False(result.IsError);
Assert.Empty(await Database.Mixes.ToListAsync(TestContext.Current.CancellationToken));
}
[Fact]
public async Task Handle_AllTracksAlreadyListenedTo_CreatesOnlyTheDailyMix()
{
var user = TestEntities.User();
var track = TestEntities.Track(user);
await SeedAsync(
user, track,
TestEntities.ListeningHistory(user.Id, track.Id));
var result = await CreateHandler().Handle(new GenerateMixesForUserCommand(user.Id), TestContext.Current.CancellationToken);
Assert.False(result.IsError);
var mixes = await Database.Mixes.ToListAsync(TestContext.Current.CancellationToken);
Assert.Single(mixes);
Assert.Equal(MixKind.Daily, mixes[0].Kind);
}
[Fact]
public async Task Handle_UnheardTracksInLibrary_CreatesDiscoveryAndDailyMixes_AndReplacesPreviousMixes()
{
var user = TestEntities.User();
var listenedTrack = TestEntities.Track(user, "Listened Track");
var unheardTrack = TestEntities.Track(user, "Unheard Track");
var staleMix = TestEntities.Mix(user.Id, MixKind.Daily);
var staleItem = TestEntities.MixItem(staleMix.Id, listenedTrack.Id);
await SeedAsync(
user, listenedTrack, unheardTrack, staleMix, staleItem,
TestEntities.ListeningHistory(user.Id, listenedTrack.Id));
var result = await CreateHandler().Handle(new GenerateMixesForUserCommand(user.Id), TestContext.Current.CancellationToken);
Assert.False(result.IsError);
var mixes = await Database.Mixes.ToListAsync(TestContext.Current.CancellationToken);
Assert.DoesNotContain(mixes, mix => mix.Id == staleMix.Id);
Assert.Contains(mixes, mix => mix.Kind == MixKind.Discovery);
Assert.Contains(mixes, mix => mix.Kind == MixKind.Daily);
Assert.Empty(await Database.MixItems.Where(item => item.MixId == staleMix.Id).ToListAsync(TestContext.Current.CancellationToken));
var discoveryMix = mixes.Single(mix => mix.Kind == MixKind.Discovery);
var discoveryItems = await Database.MixItems
.Where(item => item.MixId == discoveryMix.Id)
.ToListAsync(TestContext.Current.CancellationToken);
Assert.All(discoveryItems, item => Assert.Equal(unheardTrack.Id, item.TrackId));
}
[Fact]
public async Task Handle_TrackWithOnlyUncountedListens_IsTreatedAsUnheard()
{
var user = TestEntities.User();
var skipped = TestEntities.Track(user, "Only skipped");
await SeedAsync(
user, skipped,
TestEntities.ListeningHistory(user.Id, skipped.Id, playedSeconds: 3, isCounted: false));
await CreateHandler().Handle(new GenerateMixesForUserCommand(user.Id), TestContext.Current.CancellationToken);
var mixes = await Database.Mixes.ToListAsync(TestContext.Current.CancellationToken);
Assert.Contains(mixes, mix => mix.Kind == MixKind.Discovery);
}
}