1 files changed, 40 insertions, 0 deletions
diff --git a/tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs b/tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs
new file mode 100644
index 0000000000..586db2dd50
--- /dev/null
+++ b/tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs
@@ -0,0 +1,40 @@
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Controller.MediaEncoding;
+using Moq;
+using Xunit;
+using IConfiguration = Microsoft.Extensions.Configuration.IConfiguration;
+
+namespace Jellyfin.Controller.Tests.MediaEncoding;
+
+public class EncodingHelperInferAudioCodecTests
+{
+    [Theory]
+    // Manifests and other containers that carry no inferable audio codec.
+    [InlineData("m3u8", "aac")]
+    [InlineData("mpd", "aac")]
+    [InlineData("wtv", "aac")]
+    [InlineData("", "aac")]
+    // Containers with a well known audio codec.
+    [InlineData("mp4", "aac")]
+    [InlineData("mkv", "aac")]
+    [InlineData("webm", "opus")]
+    [InlineData("ts", "mp3")]
+    // Containers named after the codec they carry.
+    [InlineData("flac", "flac")]
+    [InlineData("opus", "opus")]
+    [InlineData("ac3", "ac3")]
+    public void InferAudioCodec_ReturnsAnAudioCodec(string container, string expected)
+    {
+        Assert.Equal(expected, Create().InferAudioCodec(container));
+    }
+
+    private static EncodingHelper Create()
+        => new(
+            Mock.Of<IApplicationPaths>(),
+            Mock.Of<IMediaEncoder>(),
+            Mock.Of<ISubtitleEncoder>(),
+            Mock.Of<IConfiguration>(),
+            Mock.Of<IConfigurationManager>(),
+            Mock.Of<IPathManager>());
+}