82 lines
3.4 KiB
C#
82 lines
3.4 KiB
C#
using ErrorOr;
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using Musify.Application.PlayLists;
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using Musify.Application.Tests.TestSupport;
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using Musify.Domain.Entities;
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using Xunit;
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namespace Musify.Application.Tests.PlayLists;
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public sealed class RemoveTrackFromPlayListCommandHandlerTests : HandlerTestBase
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{
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private RemoveTrackFromPlayListCommandHandler CreateHandler() => new(Database, NoOpLogger<RemoveTrackFromPlayListCommandHandler>());
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[Fact]
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public async Task Handle_TrackInPlayList_RemovesTheLink()
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{
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var owner = TestEntities.User();
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var playList = TestEntities.PlayList(owner.Id);
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var track = TestEntities.Track(owner);
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await SeedAsync(owner, playList, track, new PlayListHasTrack { PlayListId = playList.Id, TrackId = track.Id, Position = 0 });
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var result = await CreateHandler().Handle(new RemoveTrackFromPlayListCommand(owner.Id, playList.Id, track.Id), TestContext.Current.CancellationToken);
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Assert.False(result.IsError);
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Assert.Empty(Database.PlayListHasTracks);
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}
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[Fact]
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public async Task Handle_PlayListMissing_ReturnsNotFound()
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{
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var result = await CreateHandler().Handle(new RemoveTrackFromPlayListCommand(1, Guid.NewGuid(), Guid.NewGuid()), TestContext.Current.CancellationToken);
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Assert.Equal(ErrorType.NotFound, result.FirstError.Type);
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}
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[Fact]
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public async Task Handle_NotOwner_ReturnsForbidden()
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{
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var owner = TestEntities.User(1, "owner");
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var stranger = TestEntities.User(2, "stranger");
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var playList = TestEntities.PlayList(owner.Id);
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await SeedAsync(owner, stranger, playList);
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var result = await CreateHandler().Handle(new RemoveTrackFromPlayListCommand(stranger.Id, playList.Id, Guid.NewGuid()), TestContext.Current.CancellationToken);
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Assert.Equal(ErrorType.Forbidden, result.FirstError.Type);
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}
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[Fact]
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public async Task Handle_TrackNotLinked_ReturnsNotFound()
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{
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var owner = TestEntities.User();
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var playList = TestEntities.PlayList(owner.Id);
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await SeedAsync(owner, playList);
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var result = await CreateHandler().Handle(new RemoveTrackFromPlayListCommand(owner.Id, playList.Id, Guid.NewGuid()), TestContext.Current.CancellationToken);
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Assert.Equal(ErrorType.NotFound, result.FirstError.Type);
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}
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[Fact]
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public async Task Handle_TrackInTheMiddle_RenumbersTheRemainingTracks()
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{
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var owner = TestEntities.User();
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var playList = TestEntities.PlayList(owner.Id);
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var first = TestEntities.Track(owner, "First");
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var second = TestEntities.Track(owner, "Second");
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var third = TestEntities.Track(owner, "Third");
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await SeedAsync(
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owner, playList, first, second, third,
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new PlayListHasTrack { PlayListId = playList.Id, TrackId = first.Id, Position = 0 },
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new PlayListHasTrack { PlayListId = playList.Id, TrackId = second.Id, Position = 1 },
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new PlayListHasTrack { PlayListId = playList.Id, TrackId = third.Id, Position = 2 });
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var result = await CreateHandler().Handle(new RemoveTrackFromPlayListCommand(owner.Id, playList.Id, second.Id), TestContext.Current.CancellationToken);
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Assert.False(result.IsError);
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var remaining = Database.PlayListHasTracks.OrderBy(link => link.Position).ToList();
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Assert.Equal([first.Id, third.Id], remaining.Select(link => link.TrackId));
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Assert.Equal([0, 1], remaining.Select(link => link.Position));
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}
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}
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