<!DOCTYPE html>
<title>TextTrack's cue onenter handler called when seeked onto</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>
    // Check that the onenter event is called for the right cue when seeking on the video element.
    // Based on the spec step 4 [1], after a seek happens, the missed cues should be empty,
    // so any cues before the target time should not receive enter event.
    // [1] https://html.spec.whatwg.org/multipage/media.html#time-marches-on
    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);
            const targetTime = 4.0000000004;

            for (let cue of testTrack.track.cues) {
                if (cue.endTime > targetTime) {
                    cue.onenter = t.step_func(_=>t.done());
                } else {
                    cue.onenter = t.unreached_func("onenter called for wrong cue");
                }
            }

            video.currentTime = targetTime;
        }
    });
    </script>
</video>
