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