93 lines
3.8 KiB
C#
93 lines
3.8 KiB
C#
using ErrorOr;
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using Microsoft.EntityFrameworkCore;
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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 AddTrackToPlayListCommandHandlerTests : HandlerTestBase
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{
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private AddTrackToPlayListCommandHandler CreateHandler() => new(Database, NoOpLogger<AddTrackToPlayListCommandHandler>());
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[Fact]
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public async Task Handle_FirstTrack_AddsItAtPositionZero()
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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);
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var result = await CreateHandler().Handle(new AddTrackToPlayListCommand(owner.Id, playList.Id, track.Id), TestContext.Current.CancellationToken);
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Assert.False(result.IsError);
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var link = Assert.Single(await Database.PlayListHasTracks.ToListAsync(TestContext.Current.CancellationToken));
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Assert.Equal(0, link.Position);
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}
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[Fact]
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public async Task Handle_PlayListAlreadyHasTracks_AppendsAtNextPosition()
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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 existingTrack = TestEntities.Track(owner, "Existing");
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var newTrack = TestEntities.Track(owner, "New");
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await SeedAsync(
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owner, playList, existingTrack, newTrack,
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new PlayListHasTrack { PlayListId = playList.Id, TrackId = existingTrack.Id, Position = 0 });
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var result = await CreateHandler().Handle(new AddTrackToPlayListCommand(owner.Id, playList.Id, newTrack.Id), TestContext.Current.CancellationToken);
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Assert.False(result.IsError);
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var newLink = await Database.PlayListHasTracks.SingleAsync(link => link.TrackId == newTrack.Id, TestContext.Current.CancellationToken);
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Assert.Equal(1, newLink.Position);
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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 AddTrackToPlayListCommand(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_ReturnsUnauthorized()
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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 AddTrackToPlayListCommand(stranger.Id, playList.Id, Guid.NewGuid()), TestContext.Current.CancellationToken);
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Assert.Equal(ErrorType.Unauthorized, result.FirstError.Type);
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}
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[Fact]
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public async Task Handle_TrackMissing_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 AddTrackToPlayListCommand(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_TrackAlreadyInPlayList_ReturnsConflict()
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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 AddTrackToPlayListCommand(owner.Id, playList.Id, track.Id), TestContext.Current.CancellationToken);
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Assert.Equal(ErrorType.Conflict, result.FirstError.Type);
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}
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}
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