1 files changed, 79 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/media-elements/track/track-element/track-remove-track-inband.html b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/track/track-element/track-remove-track-inband.html
new file mode 100644
index 0000000000..7dcfe68318
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/track/track-element/track-remove-track-inband.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+
+        <script src="/common/media.js"></script>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <script>
+            async_test(function(test)
+            {
+                var video = document.createElement("video");
+
+                // Create an out-of-band text track by adding a track element.
+                var trackElement = document.createElement('track');
+
+                trackElement.addEventListener("error", test.step_func(function()
+                {
+                    assert_unreached("'error' event on track element should not fire.")
+                }));
+
+                video.appendChild(trackElement);
+                trackElement.src = 'resources/webvtt-file.vtt';
+                trackElement.track.mode = 'hidden';
+
+                assert_equals(video.textTracks.length, 1);
+                var outOfBandTrack = video.textTracks[0];
+
+                // Load a media file with an inband text track.
+                var inbandTrack = null;
+                var url = "resources/vp8-vorbis-webvtt.webm"
+
+                var firstAddTrackHandler = test.step_func(function()
+                {
+                    assert_equals(event.target, video.textTracks);
+                    assert_equals(event instanceof window.TrackEvent, true);
+                    if (event.track == outOfBandTrack) {
+                        return;
+                    }
+
+                    assert_equals(inbandTrack, null);
+                    assert_equals(video.textTracks.length, 2);
+                    assert_equals(event.track, video.textTracks[1]);
+                    inbandTrack = event.track;
+
+                    video.textTracks.removeEventListener("addtrack", firstAddTrackHandler);
+
+                    // Clear .src to force the inband track to get destroyed.
+                    video.src = "";
+
+                    // Verify that the inband track was removed.
+                    assert_not_equals(inbandTrack, null);
+                    assert_equals(video.textTracks.length, 1);
+                    assert_equals(video.textTracks[0], outOfBandTrack);
+
+                    // Load the URL again to trigger another 'addtrack' event to make sure
+                    // no 'removetrack' event was queued.
+                    video.src = url;
+                    video.textTracks.addEventListener("addtrack", test.step_func(function()
+                    {
+                        assert_equals(video.textTracks.length, 2);
+                        test.done();
+                    }));
+                });
+                video.textTracks.addEventListener("addtrack", firstAddTrackHandler);
+
+                video.textTracks.addEventListener("removetrack", test.step_func(function()
+                {
+                    assert_unreached("'removetrack' event should not fire.")
+                }));
+
+                video.src = url;
+            }, "Tests that the 'removetrack' event is NOT fired for inband TextTrack on a failed load.");
+
+        </script>
+    </body>
+</html>