2 files changed, 103 insertions, 0 deletions
diff --git a/tests/Jellyfin.Server.Implementations.Tests/Library/EpisodeResolverTest.cs b/tests/Jellyfin.Server.Implementations.Tests/Library/EpisodeResolverTest.cs
new file mode 100644
index 000000000..c393742eb
--- /dev/null
+++ b/tests/Jellyfin.Server.Implementations.Tests/Library/EpisodeResolverTest.cs
@@ -0,0 +1,72 @@
+using System;
+using Emby.Server.Implementations.Library.Resolvers.TV;
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.TV;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.IO;
+using Moq;
+using Xunit;
+
+namespace Jellyfin.Server.Implementations.Tests.Library
+{
+    public class EpisodeResolverTest
+    {
+        [Fact]
+        public void Resolve_GivenVideoInExtrasFolder_DoesNotResolveToEpisode()
+        {
+            var season = new Season { Name = "Season 1" };
+            var parent = new Folder { Name = "extras" };
+            var libraryManagerMock = new Mock<ILibraryManager>();
+            libraryManagerMock.Setup(x => x.GetItemById(It.IsAny<Guid>())).Returns(season);
+
+            var episodeResolver = new EpisodeResolver(libraryManagerMock.Object);
+            var itemResolveArgs = new ItemResolveArgs(
+                Mock.Of<IServerApplicationPaths>(),
+                Mock.Of<IDirectoryService>())
+            {
+                Parent = parent,
+                CollectionType = CollectionType.TvShows,
+                FileInfo = new FileSystemMetadata()
+                {
+                    FullName = "All My Children/Season 01/Extras/All My Children S01E01 - Behind The Scenes.mkv"
+                }
+            };
+
+            Assert.Null(episodeResolver.Resolve(itemResolveArgs));
+        }
+
+        [Fact]
+        public void Resolve_GivenVideoInExtrasSeriesFolder_ResolvesToEpisode()
+        {
+            var series = new Series { Name = "Extras" };
+
+            // Have to create a mock because of moq proxies not being castable to a concrete implementation
+            // https://github.com/jellyfin/jellyfin/blob/ab0cff8556403e123642dc9717ba778329554634/Emby.Server.Implementations/Library/Resolvers/BaseVideoResolver.cs#L48
+            var episodeResolver = new EpisodeResolverMock(Mock.Of<ILibraryManager>());
+            var itemResolveArgs = new ItemResolveArgs(
+                Mock.Of<IServerApplicationPaths>(),
+                Mock.Of<IDirectoryService>())
+            {
+                Parent = series,
+                CollectionType = CollectionType.TvShows,
+                FileInfo = new FileSystemMetadata()
+                {
+                    FullName = "Extras/Extras S01E01.mkv"
+                }
+            };
+            Assert.NotNull(episodeResolver.Resolve(itemResolveArgs));
+        }
+
+        private class EpisodeResolverMock : EpisodeResolver
+        {
+            public EpisodeResolverMock(ILibraryManager libraryManager) : base(libraryManager)
+            {
+            }
+
+            protected override TVideoType ResolveVideo<TVideoType>(ItemResolveArgs args, bool parseName) => new ();
+        }
+    }
+}
diff --git a/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs b/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs
index 6d768af89..c5cc056f5 100644
--- a/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs
+++ b/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs
@@ -24,5 +24,36 @@ namespace Jellyfin.Server.Implementations.Tests.Library
         {
             Assert.Throws<ArgumentException>(() => PathExtensions.GetAttributeValue(input, attribute));
         }
+
+        [Theory]
+        [InlineData("C:/Users/jeff/myfile.mkv", "C:/Users/jeff", "/home/jeff", "/home/jeff/myfile.mkv")]
+        [InlineData("C:/Users/jeff/myfile.mkv", "C:/Users/jeff/", "/home/jeff", "/home/jeff/myfile.mkv")]
+        [InlineData("/home/jeff/music/jeff's band/consistently inconsistent.mp3", "/home/jeff/music/jeff's band", "/home/not jeff", "/home/not jeff/consistently inconsistent.mp3")]
+        [InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff", "/home/jeff", "/home/jeff/myfile.mkv")]
+        [InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff", "/home/jeff/", "/home/jeff/myfile.mkv")]
+        [InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff/", "/home/jeff/", "/home/jeff/myfile.mkv")]
+        [InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff/", "/", "/myfile.mkv")]
+        [InlineData("/o", "/o", "/s", "/s")] // regression test for #5977
+        public void TryReplaceSubPath_ValidArgs_Correct(string path, string subPath, string newSubPath, string? expectedResult)
+        {
+            Assert.True(PathExtensions.TryReplaceSubPath(path, subPath, newSubPath, out var result));
+            Assert.Equal(expectedResult, result);
+        }
+
+        [Theory]
+        [InlineData(null, null, null)]
+        [InlineData(null, "/my/path", "/another/path")]
+        [InlineData("/my/path", null, "/another/path")]
+        [InlineData("/my/path", "/another/path", null)]
+        [InlineData("", "", "")]
+        [InlineData("/my/path", "", "")]
+        [InlineData("", "/another/path", "")]
+        [InlineData("", "", "/new/subpath")]
+        [InlineData("/home/jeff/music/jeff's band/consistently inconsistent.mp3", "/home/jeff/music/not jeff's band", "/home/not jeff")]
+        public void TryReplaceSubPath_InvalidInput_ReturnsFalseAndNull(string? path, string? subPath, string? newSubPath)
+        {
+            Assert.False(PathExtensions.TryReplaceSubPath(path, subPath, newSubPath, out var result));
+            Assert.Null(result);
+        }
     }
 }