1 files changed, 126 insertions, 0 deletions
diff --git a/tests/Jellyfin.Providers.Tests/MediaInfo/VideoImageProviderTests.cs b/tests/Jellyfin.Providers.Tests/MediaInfo/VideoImageProviderTests.cs
new file mode 100644
index 0000000000..839925dd10
--- /dev/null
+++ b/tests/Jellyfin.Providers.Tests/MediaInfo/VideoImageProviderTests.cs
@@ -0,0 +1,126 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Movies;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.MediaEncoding;
+using MediaBrowser.Controller.Persistence;
+using MediaBrowser.Model.Drawing;
+using MediaBrowser.Model.Dto;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Providers.MediaInfo;
+using Microsoft.Extensions.Logging.Abstractions;
+using Moq;
+using Xunit;
+
+namespace Jellyfin.Providers.Tests.MediaInfo
+{
+    public class VideoImageProviderTests
+    {
+        private static TheoryData<Video> GetImage_UnsupportedInput_ReturnsNoImage_TestData()
+        {
+            return new ()
+            {
+                new Movie { IsPlaceHolder = true },
+
+                new Movie { DefaultVideoStreamIndex = null },
+
+                // set a default index but don't put anything there (invalid input, but provider shouldn't break)
+                new Movie { DefaultVideoStreamIndex = 0 }
+            };
+        }
+
+        [Theory]
+        [MemberData(nameof(GetImage_UnsupportedInput_ReturnsNoImage_TestData))]
+        public async void GetImage_UnsupportedInput_ReturnsNoImage(Video input)
+        {
+            var mediaSourceManager = GetMediaSourceManager(input, null, new List<MediaStream>());
+            var videoImageProvider = new VideoImageProvider(mediaSourceManager, Mock.Of<IMediaEncoder>(), new NullLogger<VideoImageProvider>());
+
+            var actual = await videoImageProvider.GetImage(input, ImageType.Primary, CancellationToken.None);
+            Assert.NotNull(actual);
+            Assert.False(actual.HasImage);
+        }
+
+        [Theory]
+        [InlineData(1, 1)] // default not first stream
+        [InlineData(5, 0)] // default out of valid range
+        public async void GetImage_DefaultVideoStreams_ReturnsCorrectStreamImage(int defaultIndex, int targetIndex)
+        {
+            var input = new Movie { DefaultVideoStreamIndex = defaultIndex };
+
+            string targetPath = "path.jpg";
+            var mediaStreams = new List<MediaStream>();
+            var mediaEncoder = new Mock<IMediaEncoder>(MockBehavior.Strict);
+
+            for (int i = 0; i <= targetIndex; i++)
+            {
+                var mediaStream = new MediaStream { Type = MediaStreamType.Video, Index = i };
+                mediaStreams.Add(mediaStream);
+
+                var path = i == targetIndex ? targetPath : "wrong stream called!";
+                mediaEncoder.Setup(encoder => encoder.ExtractVideoImage(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<MediaSourceInfo>(), mediaStream, It.IsAny<Video3DFormat?>(), It.IsAny<TimeSpan?>(), It.IsAny<CancellationToken>()))
+                    .Returns(Task.FromResult(path));
+            }
+
+            var defaultStream = defaultIndex < mediaStreams.Count ? mediaStreams[targetIndex] : null;
+            var mediaSourceManager = GetMediaSourceManager(input, defaultStream, mediaStreams);
+
+            var videoImageProvider = new VideoImageProvider(mediaSourceManager, mediaEncoder.Object, new NullLogger<VideoImageProvider>());
+
+            var actual = await videoImageProvider.GetImage(input, ImageType.Primary, CancellationToken.None);
+            Assert.NotNull(actual);
+            Assert.True(actual.HasImage);
+            Assert.Equal(targetPath, actual.Path);
+            Assert.Equal(ImageFormat.Jpg, actual.Format);
+        }
+
+        [Theory]
+        [InlineData(null, 10)] // default time
+        [InlineData(500, 50)] // calculated time
+        public async void GetImage_TimeSpan_SelectsCorrectTime(int? runTimeSeconds, long expectedSeconds)
+        {
+            MediaStream targetStream = new () { Type = MediaStreamType.Video, Index = 0 };
+            var input = new Movie
+            {
+                DefaultVideoStreamIndex = 0,
+                RunTimeTicks = runTimeSeconds * TimeSpan.TicksPerSecond
+            };
+
+            var mediaSourceManager = GetMediaSourceManager(input, targetStream, new List<MediaStream> { targetStream });
+
+            // use a callback to catch the actual value
+            // provides more information on failure than verifying a specific input was called on the mock
+            TimeSpan? actualTimeSpan = null;
+            var mediaEncoder = new Mock<IMediaEncoder>(MockBehavior.Strict);
+            mediaEncoder.Setup(encoder => encoder.ExtractVideoImage(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<MediaSourceInfo>(), It.IsAny<MediaStream>(), It.IsAny<Video3DFormat?>(), It.IsAny<TimeSpan?>(), CancellationToken.None))
+                .Callback<string, string, MediaSourceInfo, MediaStream, Video3DFormat?, TimeSpan?, CancellationToken>((_, _, _, _, _, timeSpan, _) => actualTimeSpan = timeSpan)
+                .Returns(Task.FromResult("path"));
+
+            var videoImageProvider = new VideoImageProvider(mediaSourceManager, mediaEncoder.Object, new NullLogger<VideoImageProvider>());
+
+            // not testing return, just verifying what gets requested for time span
+            await videoImageProvider.GetImage(input, ImageType.Primary, CancellationToken.None);
+
+            Assert.Equal(TimeSpan.FromSeconds(expectedSeconds), actualTimeSpan);
+        }
+
+        private static IMediaSourceManager GetMediaSourceManager(Video item, MediaStream? defaultStream, List<MediaStream> mediaStreams)
+        {
+            var defaultStreamList = new List<MediaStream>();
+            if (defaultStream != null)
+            {
+                defaultStreamList.Add(defaultStream);
+            }
+
+            var mediaSourceManager = new Mock<IMediaSourceManager>(MockBehavior.Strict);
+            mediaSourceManager.Setup(i => i.GetMediaStreams(It.Is<MediaStreamQuery>(q => q.ItemId == item.Id && q.Index == item.DefaultVideoStreamIndex)))
+                .Returns(defaultStreamList);
+            mediaSourceManager.Setup(i => i.GetMediaStreams(It.Is<MediaStreamQuery>(q => q.ItemId == item.Id && q.Type == MediaStreamType.Video)))
+                .Returns(mediaStreams);
+            return mediaSourceManager.Object;
+        }
+    }
+}