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using System;
using System.Collections.Generic;
using Emby.Server.Implementations.Images;
using Jellyfin.Data.Enums;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Querying;
using Moq;
using Xunit;
namespace Jellyfin.Server.Implementations.Tests.Images;
/// <summary>
/// A music library is collaged from its artists' backdrops. Artists are by-name items with no
/// library of their own, so they have to be asked for through the by-name listing, which reaches
/// them through the tracks that credit them; an item query for them ignores the library scope and
/// hands back the artists of every music library.
/// </summary>
public sealed class CollectionFolderImageProviderTests
{
[Fact]
public void GetItemsWithImages_MusicLibrary_AsksForTheArtistsOfThatLibraryOnly()
{
var view = new CollectionFolder { Id = Guid.NewGuid(), CollectionType = CollectionType.music };
var artist = new MusicArtist { Id = Guid.NewGuid(), Name = "Artist" };
InternalItemsQuery? query = null;
var libraryManager = new Mock<ILibraryManager>();
libraryManager
.Setup(l => l.GetAllArtists(It.IsAny<InternalItemsQuery>()))
.Callback<InternalItemsQuery>(q => query = q)
.Returns(new QueryResult<(BaseItem Item, ItemCounts ItemCounts)>([(artist, new ItemCounts())]));
var items = CreateProvider(libraryManager.Object).GetItems(view);
Assert.Equal([artist], items);
Assert.NotNull(query);
Assert.Equal([view.Id], query.AncestorIds);
Assert.Equal([ImageType.Primary], query.ImageTypes);
Assert.Equal(8, query.Limit);
}
private static TestableCollectionFolderImageProvider CreateProvider(ILibraryManager libraryManager)
{
return new TestableCollectionFolderImageProvider(
Mock.Of<IFileSystem>(),
Mock.Of<IProviderManager>(),
Mock.Of<IApplicationPaths>(),
Mock.Of<IImageProcessor>(),
libraryManager);
}
private sealed class TestableCollectionFolderImageProvider : CollectionFolderImageProvider
{
public TestableCollectionFolderImageProvider(
IFileSystem fileSystem,
IProviderManager providerManager,
IApplicationPaths applicationPaths,
IImageProcessor imageProcessor,
ILibraryManager libraryManager)
: base(fileSystem, providerManager, applicationPaths, imageProcessor, libraryManager)
{
}
public IReadOnlyList<BaseItem> GetItems(BaseItem item) => GetItemsWithImages(item);
}
}
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