onexit.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/onexit.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>TextTrackCue.onexit</title>

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

<div id=log></div>

<script>

setup(function(){

    window.c1 = new VTTCue(0, 1, 'text1');

    window.ev = new Event('exit');

    window.ran = false;

    window.cb = function() { ran = true; };

});

test(function(){

    assert_equals(c1.onexit, null, 'initial value');

    c1.onexit = undefined;

    assert_equals(c1.onexit, null, 'assigning undefined');

    c1.onexit = cb;

    assert_equals(c1.onexit, cb, 'assigning onexit');

    c1.dispatchEvent(ev);

    assert_true(ran, 'dispatching event');

    c1.onexit = null;

    assert_equals(c1.onexit, null, 'assigning null');

    ran = false;

    c1.dispatchEvent(ev);

    assert_false(ran, 'dispatching event after nulling onexit');

});

test(function(){

    c1.addEventListener('exit', cb, false);

    c1.dispatchEvent(ev);

    assert_true(ran);

    c1.removeEventListener('exit', cb, false);

    ran = false;

    c1.dispatchEvent(ev);

    assert_false(ran);

}, 'TextTrackCue.addEventListener/removeEventListener');

</script>