1 files changed, 29 insertions, 0 deletions
diff --git a/tests/Jellyfin.Model.Tests/Dlna/ContainerHelperTests.cs b/tests/Jellyfin.Model.Tests/Dlna/ContainerHelperTests.cs
index 68f8d94c7..1ad4bed56 100644
--- a/tests/Jellyfin.Model.Tests/Dlna/ContainerHelperTests.cs
+++ b/tests/Jellyfin.Model.Tests/Dlna/ContainerHelperTests.cs
@@ -40,6 +40,11 @@ public class ContainerHelperTests
     public void ContainsContainer_NotInList_ReturnsFalse(string container, string? extension)
     {
         Assert.False(ContainerHelper.ContainsContainer(container, extension));
+
+        if (extension is not null)
+        {
+            Assert.False(ContainerHelper.ContainsContainer(container, extension.AsSpan()));
+        }
     }
 
     [Theory]
@@ -51,4 +56,28 @@ public class ContainerHelperTests
     {
         Assert.True(ContainerHelper.ContainsContainer(container, extension.AsSpan()));
     }
+
+    [Theory]
+    [InlineData(new string[] { "mp3", "mpeg" }, false, "mpeg")]
+    [InlineData(new string[] { "mp3", "mpeg", "avi" }, false, "avi")]
+    [InlineData(new string[] { "mp3", "", "avi" }, false, "mp3")]
+    [InlineData(new string[] { "mp3", "mpeg" }, true, "avi")]
+    [InlineData(new string[] { "mp3", "mpeg", "avi" }, true, "mkv")]
+    [InlineData(new string[] { "mp3", "", "avi" }, true, "")]
+    public void ContainsContainer_ThreeArgs_InList_ReturnsTrue(string[] containers, bool isNegativeList, string inputContainer)
+    {
+        Assert.True(ContainerHelper.ContainsContainer(containers, isNegativeList, inputContainer));
+    }
+
+    [Theory]
+    [InlineData(new string[] { "mp3", "mpeg" }, false, "avi")]
+    [InlineData(new string[] { "mp3", "mpeg", "avi" }, false, "mkv")]
+    [InlineData(new string[] { "mp3", "", "avi" }, false, "")]
+    [InlineData(new string[] { "mp3", "mpeg" }, true, "mpeg")]
+    [InlineData(new string[] { "mp3", "mpeg", "avi" }, true, "mp3")]
+    [InlineData(new string[] { "mp3", "", "avi" }, true, "avi")]
+    public void ContainsContainer_ThreeArgs_InList_ReturnsFalse(string[] containers, bool isNegativeList, string inputContainer)
+    {
+        Assert.False(ContainerHelper.ContainsContainer(containers, isNegativeList, inputContainer));
+    }
 }