92 lines
4.2 KiB
C#
92 lines
4.2 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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{
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public sealed class AddAlbumToPlayListCommandHandlerTests : HandlerTestBase
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{
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private AddAlbumToPlayListCommandHandler CreateHandler() => new(Database, NoOpLogger<AddAlbumToPlayListCommandHandler>());
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[Fact]
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public async Task Handle_AddsAlbumTracksInAlbumOrder()
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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 album = TestEntities.Album(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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await SeedAsync(
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owner, playList, album, first, second,
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new AlbumHasTrack { AlbumId = album.Id, TrackId = second.Id, TrackNumber = 2 },
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new AlbumHasTrack { AlbumId = album.Id, TrackId = first.Id, TrackNumber = 1 });
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var result = await CreateHandler().Handle(new AddAlbumToPlayListCommand(owner.Id, playList.Id, album.Id), TestContext.Current.CancellationToken);
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Assert.False(result.IsError);
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Assert.Equal(2, result.Value.AddedCount);
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var links = await Database.PlayListHasTracks.OrderBy(link => link.Position).ToListAsync(TestContext.Current.CancellationToken);
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Assert.Equal([first.Id, second.Id], links.Select(link => link.TrackId));
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Assert.Equal([0, 1], links.Select(link => link.Position));
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}
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[Fact]
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public async Task Handle_SkipsTracksAlreadyInPlayList_AndAppendsAfterThem()
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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 album = TestEntities.Album(owner.Id);
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var existing = TestEntities.Track(owner, "Existing");
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var fresh = TestEntities.Track(owner, "Fresh");
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await SeedAsync(
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owner, playList, album, existing, fresh,
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new AlbumHasTrack { AlbumId = album.Id, TrackId = existing.Id, TrackNumber = 1 },
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new AlbumHasTrack { AlbumId = album.Id, TrackId = fresh.Id, TrackNumber = 2 },
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new PlayListHasTrack { PlayListId = playList.Id, TrackId = existing.Id, Position = 4 });
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var result = await CreateHandler().Handle(new AddAlbumToPlayListCommand(owner.Id, playList.Id, album.Id), TestContext.Current.CancellationToken);
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Assert.Equal(1, result.Value.AddedCount);
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var link = await Database.PlayListHasTracks.SingleAsync(l => l.TrackId == fresh.Id, TestContext.Current.CancellationToken);
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Assert.Equal(5, link.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 AddAlbumToPlayListCommand(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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var album = TestEntities.Album(owner.Id);
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await SeedAsync(owner, stranger, playList, album);
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var result = await CreateHandler().Handle(new AddAlbumToPlayListCommand(stranger.Id, playList.Id, album.Id), 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_AlbumMissing_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 AddAlbumToPlayListCommand(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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}
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}
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