1 files changed, 101 insertions, 0 deletions
diff --git a/tests/Jellyfin.MediaEncoding.Hls.Tests/Playlist/DynamicHlsPlaylistGeneratorTests.cs b/tests/Jellyfin.MediaEncoding.Hls.Tests/Playlist/DynamicHlsPlaylistGeneratorTests.cs
new file mode 100644
index 0000000000..79648c4f6e
--- /dev/null
+++ b/tests/Jellyfin.MediaEncoding.Hls.Tests/Playlist/DynamicHlsPlaylistGeneratorTests.cs
@@ -0,0 +1,101 @@
+using System;
+using Jellyfin.MediaEncoding.Hls.Playlist;
+using Jellyfin.MediaEncoding.Keyframes;
+using Xunit;
+
+namespace Jellyfin.MediaEncoding.Hls.Tests.Playlist
+{
+    public class DynamicHlsPlaylistGeneratorTests
+    {
+        [Theory]
+        [MemberData(nameof(ComputeSegments_Valid_Success_Data))]
+        public void ComputeSegments_Valid_Success(KeyframeData keyframeData, int desiredSegmentLengthMs, double[] segments)
+        {
+            Assert.Equal(segments, DynamicHlsPlaylistGenerator.ComputeSegments(keyframeData, desiredSegmentLengthMs));
+        }
+
+        [Fact]
+        public void ComputeSegments_InvalidDuration_ThrowsArgumentException()
+        {
+            var keyframeData = new KeyframeData(0, new[] { MsToTicks(10000) });
+            Assert.Throws<ArgumentException>(() => DynamicHlsPlaylistGenerator.ComputeSegments(keyframeData, 6000));
+        }
+
+        [Theory]
+        [MemberData(nameof(ComputeEqualLengthSegments_Valid_Success_Data))]
+        public void ComputeEqualLengthSegments_Valid_Success(int desiredSegmentLengthMs, long totalRuntimeTicks, double[] segments)
+        {
+            Assert.Equal(segments, DynamicHlsPlaylistGenerator.ComputeEqualLengthSegments(desiredSegmentLengthMs, totalRuntimeTicks));
+        }
+
+        [Theory]
+        [InlineData(0, 1000000)]
+        [InlineData(1000, 0)]
+        public void ComputeEqualLengthSegments_Invalid_ThrowsInvalidOperationException(int desiredSegmentLengthMs, long totalRuntimeTicks)
+        {
+            Assert.Throws<InvalidOperationException>(() => DynamicHlsPlaylistGenerator.ComputeEqualLengthSegments(desiredSegmentLengthMs, totalRuntimeTicks));
+        }
+
+        [Theory]
+        [InlineData("testfile.mkv", new string[0], false)]
+        [InlineData("testfile.flv", new[] { ".mp4", ".mkv", ".ts" }, false)]
+        [InlineData("testfile.flv", new[] { ".mp4", ".mkv", ".ts", ".flv" }, true)]
+        [InlineData("/some/arbitrarily/long/path/testfile.mkv", new[] { "mkv" }, true)]
+        public void IsExtractionAllowedForFile_Valid_Success(string filePath, string[] allowedExtensions, bool isAllowed)
+        {
+            Assert.Equal(isAllowed, DynamicHlsPlaylistGenerator.IsExtractionAllowedForFile(filePath, allowedExtensions));
+        }
+
+        [Theory]
+        [InlineData("testfile", new[] { ".mp4" })]
+        public void IsExtractionAllowedForFile_Invalid_ReturnsFalse(string filePath, string[] allowedExtensions)
+        {
+            Assert.False(DynamicHlsPlaylistGenerator.IsExtractionAllowedForFile(filePath, allowedExtensions));
+        }
+
+        private static TheoryData<int, long, double[]> ComputeEqualLengthSegments_Valid_Success_Data()
+        {
+            var data = new TheoryData<int, long, double[]>
+            {
+                { 6000, MsToTicks(13000), new[] { 6.0, 6.0, 1.0 } },
+                { 3000, MsToTicks(15000), new[] { 3.0, 3.0, 3.0, 3.0, 3.0 } },
+                { 6000, MsToTicks(25000), new[] { 6.0, 6.0, 6.0, 6.0, 1.0 } },
+                { 6000, MsToTicks(20123), new[] { 6.0, 6.0, 6.0, 2.123 } },
+                { 6000, MsToTicks(1234), new[] { 1.234 } }
+            };
+
+            return data;
+        }
+
+        private static TheoryData<KeyframeData, int, double[]> ComputeSegments_Valid_Success_Data()
+        {
+            var data = new TheoryData<KeyframeData, int, double[]>
+            {
+                {
+                    new KeyframeData(MsToTicks(35000), new[] { 0, MsToTicks(10427), MsToTicks(20854), MsToTicks(31240) }),
+                    6000,
+                    new[] { 10.427, 10.427, 10.386, 3.760 }
+                },
+                {
+                    new KeyframeData(MsToTicks(10000), new[] { 0, MsToTicks(1000), MsToTicks(2000), MsToTicks(3000), MsToTicks(4000), MsToTicks(5000) }),
+                    2000,
+                    new[] { 2.0, 2.0, 6.0 }
+                },
+                {
+                    new KeyframeData(MsToTicks(10000), new[] { 0L }),
+                    6000,
+                    new[] { 10.0 }
+                },
+                {
+                    new KeyframeData(MsToTicks(10000), Array.Empty<long>()),
+                    6000,
+                    new[] { 10.0 }
+                }
+            };
+
+            return data;
+        }
+
+        private static long MsToTicks(int value) => TimeSpan.FromMilliseconds(value).Ticks;
+    }
+}