Add tests for srt parser

MediaBrowser.MediaEncoding/Subtitles/SrtParser.cs

@@ -69,7 +69,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
                     var multiline = new List<string>();
                     while ((line = reader.ReadLine()) != null)
                     {
-                        if (string.IsNullOrEmpty(line))
+                        if (line.Length == 0)
                         {
                             break;
                         }
@@ -87,7 +87,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
                 }
             }
 
-            trackInfo.TrackEvents = trackEvents.ToArray();
+            trackInfo.TrackEvents = trackEvents;
             return trackInfo;
         }
 

tests/Jellyfin.MediaEncoding.Tests/Subtitles/SrtParserTests.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Globalization;
+using System.IO;
+using System.Threading;
+using MediaBrowser.MediaEncoding.Subtitles;
+using Microsoft.Extensions.Logging.Abstractions;
+using Xunit;
+
+namespace Jellyfin.MediaEncoding.Subtitles.Tests
+{
+    public class SrtParserTests
+    {
+        [Fact]
+        public void Parse_Valid_Success()
+        {
+            using (var stream = File.OpenRead("Test Data/example.srt"))
+            {
+                var parsed = new SrtParser(new NullLogger<SrtParser>()).Parse(stream, CancellationToken.None);
+                Assert.Equal(2, parsed.TrackEvents.Count);
+
+                var trackEvent1 = parsed.TrackEvents[0];
+                Assert.Equal("1", trackEvent1.Id);
+                Assert.Equal(TimeSpan.Parse("00:02:17.440", CultureInfo.InvariantCulture).Ticks, trackEvent1.StartPositionTicks);
+                Assert.Equal(TimeSpan.Parse("00:02:20.375", CultureInfo.InvariantCulture).Ticks, trackEvent1.EndPositionTicks);
+                Assert.Equal("Senator, we're making\r\nour final approach into Coruscant.", trackEvent1.Text);
+
+                var trackEvent2 = parsed.TrackEvents[1];
+                Assert.Equal("2", trackEvent2.Id);
+                Assert.Equal(TimeSpan.Parse("00:02:20.476", CultureInfo.InvariantCulture).Ticks, trackEvent2.StartPositionTicks);
+                Assert.Equal(TimeSpan.Parse("00:02:22.501", CultureInfo.InvariantCulture).Ticks, trackEvent2.EndPositionTicks);
+                Assert.Equal("Very good, Lieutenant.", trackEvent2.Text);
+            }
+        }
+    }
+}

tests/Jellyfin.MediaEncoding.Tests/Test Data/example.srt

@@ -0,0 +1,8 @@
+1
+00:02:17,440 --> 00:02:20,375
+Senator, we're making
+our final approach into Coruscant.
+
+2
+00:02:20,476 --> 00:02:22,501
+Very good, Lieutenant.