<!DOCTYPE html>
<title>play() with loop set to true after playback ended</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/media.js"></script>
<video></video>
<script>
// Seek towards end of video (for faster testing).
// Play video to end with "loop" set to false.
// Once ended, set "loop" to true. Call play.
// Verify that "seeked" event fires, seeking back to the beginning.
// Pause video and end test.
// Chromium bug: https://crbug.com/364442
// Spec issue: https://github.com/whatwg/html/issues/4487
async_test(function(t) {
    var video = document.querySelector("video");

    video.onloadedmetadata = t.step_func(function() {
        // Video is initially paused and "loop" unset.
        assert_true(video.paused, "paused initially ");
        assert_false(video.loop, "loop initially");
        // Seek to just before the end of the video and play.
        video.currentTime = video.duration - 0.5;
        video.onended = t.step_func(function() {
            // Verify played to end and stopped.
            assert_true(video.ended, "ended at ended event");
            assert_true(video.paused, "paused at ended event");
            assert_equals(video.currentTime, video.duration, "currentTime at ended event");

            // With playback ended, set "loop" attribute. This will cause ended == false.
            // looping video cannot be "ended", only paused.
            assert_false(video.loop, "loop at ended event");
            video.loop = true;
            assert_true(video.loop, "loop after seek");
            assert_false(video.ended, "ended after seek");
            assert_true(video.paused, "paused after seek");

            video.onseeked = t.step_func_done(function() {
                // Observed seek. Verify current time decreased and still playing.
                assert_true(video.loop, "loop at seeked event")
                assert_false(video.paused, "paused at seeked event");
                assert_false(video.ended, "ended at seeked event");
                assert_less_than(video.currentTime, video.duration, "currentTime at seeked event");
                // Pausing now that test is over to prevent additional unwanted looping.
                video.pause();
            });

            // Play video with "loop" set. Expect seek back to start.
            video.play();
        });

        video.play();
    });

    video.src = getVideoURI("/media/movie_5");
});
</script>