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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/loading-the-media-resource/load-removes-queued-error-event.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>load() removes queued error event</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
// The loadstart and error event firing tasks are queued in the synchronous
// section of the resource selection algorithm, so no tasks can come between
// them. Calling load() in the loadstart event handler removes the queued error
// event task at very latest opportunity, failing any implementation that fires
// the events in the same task.
async_test(function(t) {
var v = document.createElement('video');
var events = [];
v.onloadstart = v.onerror = t.step_func(function(e) {
events.push(e.type);
if (events.length == 1) {
v.load();
} else if (events.length == 3) {
assert_array_equals(events, ['loadstart', 'loadstart', 'error']);
t.done();
}
});
v.src = '';
}, 'video error event');
async_test(function(t) {
var v = document.createElement('video');
var s = document.createElement('source');
var events = [];
v.onloadstart = s.onerror = t.step_func(function(e) {
events.push(e.type);
if (events.length == 1) {
v.load();
} else if (events.length == 3) {
assert_array_equals(events, ['loadstart', 'loadstart', 'error']);
t.done();
}
});
v.onerror = t.step_func(function() { assert_unreached(); });
v.appendChild(s);
}, 'source error event');
</script>