1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/media-elements/track/track-element/track-cues-enter-exit.html b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/track/track-element/track-cues-enter-exit.html
new file mode 100644
index 0000000000..2d49c21178
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/track/track-element/track-cues-enter-exit.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<title>TextTrack's cues are indexed and updated in order during video playback</title>
+<meta name="timeout" content="long">
+<script src="/common/media.js"></script>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<video>
+    <track src="resources/cues-chrono-order.vtt" kind="captions" default>
+    <script>
+    // Use the enter and exit events on TextTrackCue.
+    async_test(function(t) {
+        var video = document.querySelector("video");
+        var testTrack = document.querySelector("track");
+
+        video.src = getVideoURI("/media/test");
+
+        video.oncanplaythrough = t.step_func(attemptTests);
+
+        function attemptTests() {
+            assert_equals(testTrack.track.cues.length, 3);
+            for (var i = 0; i < testTrack.track.cues.length; i++) {
+                testTrack.track.cues[i].onenter = t.step_func(cueEntered);
+                testTrack.track.cues[i].onexit = t.step_func(cueExited);
+            }
+            video.play();
+        }
+
+        var cueCount = 0;
+        function cueEntered(event) {
+            var currentCue = event.target;
+
+            // This cue is the currently active cue.
+            assert_equals(currentCue, testTrack.track.activeCues[0]);
+            assert_equals(currentCue.id, (cueCount + 1).toString());
+        }
+
+        function cueExited() {
+            ++cueCount;
+            if (cueCount == testTrack.track.cues.length)
+                t.done();
+        }
+    });
+    </script>
+</video>
+\ No newline at end of file