1 files changed, 68 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/media-elements/interfaces/TextTrack/addCue.html b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/interfaces/TextTrack/addCue.html
new file mode 100644
index 0000000000..622ec4abfd
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/interfaces/TextTrack/addCue.html
@@ -0,0 +1,68 @@
+<!doctype html>
+<title>TextTrack.addCue()</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<div id=log></div>
+<script>
+setup(function(){
+    window.video = document.createElement('video');
+    document.body.appendChild(video);
+});
+test(function() {
+    var t1 = video.addTextTrack('subtitles');
+    var t2 = video.addTextTrack('subtitles');
+    var c1 = new VTTCue(0, 1, 'text1');
+    t1.addCue(c1);
+    t2.addCue(c1);
+    assert_equals(c1.track, t2);
+}, document.title+', adding a cue to two different tracks');
+test(function() {
+    var t1 = video.addTextTrack('subtitles');
+    var c1 = new VTTCue(0, 1, 'text1');
+    t1.addCue(c1);
+    assert_equals(c1.track, t1);
+    t1.addCue(c1);
+    assert_equals(c1.track, t1);
+}, document.title+', adding a cue to a track twice');
+test(function() {
+    var t1 = video.addTextTrack('subtitles');
+    var t2 = video.addTextTrack('subtitles');
+    var c1 = new VTTCue(0, 1, 'text1');
+    t1.addCue(c1);
+    assert_equals(c1.track, t1);
+    t1.removeCue(c1);
+    assert_equals(c1.track, null);
+    t2.addCue(c1);
+    assert_equals(c1.track, t2);
+}, document.title+', adding a removed cue to a different track');
+test(function() {
+    var t1 = video.addTextTrack('subtitles');
+    var c1 = new VTTCue(0, 1, 'text1');
+    t1.addCue(c1);
+    assert_equals(t1.cues.length, 1, 't1.cues.length after first addition');
+    t1.removeCue(c1);
+    assert_equals(t1.cues.length, 0, 't1.cues.length after removal');
+    t1.addCue(c1);
+    assert_equals(t1.cues.length, 1, 't1.cues.length after second addition');
+}, document.title+', adding an associated but removed cue to the same track');
+
+var t = async_test(document.title+', adding a cue associated with a track element to other track');
+t.step(function(){
+    var t1 = video.addTextTrack('subtitles');
+    var track = document.createElement('track');
+    track.onload = t.step_func(function(){
+        var cue = track.track.cues[0];
+        track.track.removeCue(cue);
+        t1.addCue(cue);
+        assert_equals(cue.track, t1);
+        t.done();
+    });
+    track.onerror = t.step_func(function() {
+      assert_unreached('got error event');
+    });
+    track.src= 'data:text/vtt,'+encodeURIComponent('WEBVTT\n\n00:00:00.000 --> 00:00:01.000\ntest\n');
+    track.kind = 'subtitles';
+    track.track.mode = 'hidden';
+    video.appendChild(track);
+});
+</script>