1 files changed, 111 insertions, 0 deletions
diff --git a/tests/Jellyfin.Naming.Tests/ExternalFiles/ExternalPathParserTests.cs b/tests/Jellyfin.Naming.Tests/ExternalFiles/ExternalPathParserTests.cs
new file mode 100644
index 000000000..b396b5440
--- /dev/null
+++ b/tests/Jellyfin.Naming.Tests/ExternalFiles/ExternalPathParserTests.cs
@@ -0,0 +1,111 @@
+using System.Text.RegularExpressions;
+using Emby.Naming.Common;
+using Emby.Naming.ExternalFiles;
+using MediaBrowser.Model.Dlna;
+using MediaBrowser.Model.Globalization;
+using Moq;
+using Xunit;
+
+namespace Jellyfin.Naming.Tests.ExternalFiles;
+
+public class ExternalPathParserTests
+{
+    private readonly ExternalPathParser _audioPathParser;
+    private readonly ExternalPathParser _subtitlePathParser;
+
+    public ExternalPathParserTests()
+    {
+        var englishCultureDto = new CultureDto("English", "English", "en", new[] { "eng" });
+        var frenchCultureDto = new CultureDto("French", "French", "fr", new[] { "fre", "fra" });
+
+        var localizationManager = new Mock<ILocalizationManager>(MockBehavior.Loose);
+        localizationManager.Setup(lm => lm.FindLanguageInfo(It.IsRegex(@"en.*", RegexOptions.IgnoreCase)))
+            .Returns(englishCultureDto);
+        localizationManager.Setup(lm => lm.FindLanguageInfo(It.IsRegex(@"fr.*", RegexOptions.IgnoreCase)))
+            .Returns(frenchCultureDto);
+
+        _audioPathParser = new ExternalPathParser(new NamingOptions(), localizationManager.Object, DlnaProfileType.Audio);
+        _subtitlePathParser = new ExternalPathParser(new NamingOptions(), localizationManager.Object, DlnaProfileType.Subtitle);
+    }
+
+    [Theory]
+    [InlineData("")]
+    [InlineData("MyVideo.ass")]
+    [InlineData("MyVideo.mks")]
+    [InlineData("MyVideo.sami")]
+    [InlineData("MyVideo.srt")]
+    [InlineData("MyVideo.m4v")]
+    public void ParseFile_AudioExtensionsNotMatched_ReturnsNull(string path)
+    {
+        Assert.Null(_audioPathParser.ParseFile(path, string.Empty));
+    }
+
+    [Theory]
+    [InlineData("MyVideo.aa")]
+    [InlineData("MyVideo.aac")]
+    [InlineData("MyVideo.flac")]
+    [InlineData("MyVideo.m4a")]
+    [InlineData("MyVideo.mka")]
+    [InlineData("MyVideo.mp3")]
+    public void ParseFile_AudioExtensionsMatched_ReturnsPath(string path)
+    {
+        var actual = _audioPathParser.ParseFile(path, string.Empty);
+        Assert.NotNull(actual);
+        Assert.Equal(path, actual!.Path);
+    }
+
+    [Theory]
+    [InlineData("")]
+    [InlineData("MyVideo.aa")]
+    [InlineData("MyVideo.aac")]
+    [InlineData("MyVideo.flac")]
+    [InlineData("MyVideo.mka")]
+    [InlineData("MyVideo.m4v")]
+    public void ParseFile_SubtitleExtensionsNotMatched_ReturnsNull(string path)
+    {
+        Assert.Null(_subtitlePathParser.ParseFile(path, string.Empty));
+    }
+
+    [Theory]
+    [InlineData("MyVideo.ass")]
+    [InlineData("MyVideo.mks")]
+    [InlineData("MyVideo.sami")]
+    [InlineData("MyVideo.srt")]
+    [InlineData("MyVideo.vtt")]
+    public void ParseFile_SubtitleExtensionsMatched_ReturnsPath(string path)
+    {
+        var actual = _subtitlePathParser.ParseFile(path, string.Empty);
+        Assert.NotNull(actual);
+        Assert.Equal(path, actual!.Path);
+    }
+
+    [Theory]
+    [InlineData("", null, null)]
+    [InlineData(".default", null, null, true, false)]
+    [InlineData(".forced", null, null, false, true)]
+    [InlineData(".foreign", null, null, false, true)]
+    [InlineData(".default.forced", null, null, true, true)]
+    [InlineData(".forced.default", null, null, true, true)]
+    [InlineData(".DEFAULT.FORCED", null, null, true, true)]
+    [InlineData(".en", null, "eng")]
+    [InlineData(".EN", null, "eng")]
+    [InlineData(".fr.en", "fr", "eng")]
+    [InlineData(".en.fr", "en", "fre")]
+    [InlineData(".title.en.fr", "title.en", "fre")]
+    [InlineData(".Title Goes Here", "Title Goes Here", null)]
+    [InlineData(".Title.with.Separator", "Title.with.Separator", null)]
+    [InlineData(".title.en.default.forced", "title", "eng", true, true)]
+    [InlineData(".forced.default.en.title", "title", "eng", true, true)]
+    public void ParseFile_ExtraTokens_ParseToValues(string tokens, string? title, string? language, bool isDefault = false, bool isForced = false)
+    {
+        var path = "My.Video" + tokens + ".srt";
+
+        var actual = _subtitlePathParser.ParseFile(path, tokens);
+
+        Assert.NotNull(actual);
+        Assert.Equal(title, actual!.Title);
+        Assert.Equal(language, actual.Language);
+        Assert.Equal(isDefault, actual.IsDefault);
+        Assert.Equal(isForced, actual.IsForced);
+    }
+}