@webcomponents/custom-elements
Version:
HTML Custom Elements Polyfill
45 lines (40 loc) • 1.08 kB
HTML
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="../fast/dom/custom/testutils.js"></script>
<body>
<script>;
// TODO(dominicc): Port fork() etc. to work with testharness, then
// remove these.
function debug() {}
function finishJSTest() {}
(() => {
if (fork()) {
// The controlling parent frame.
let t = async_test('constructor destroys the context before super');
let watcher = new EventWatcher(t, window, 'message');
watcher.wait_for('message').then(t.step_func((event) => {
assert_equals(event.data, 'PASS destroyed context');
return watcher.wait_for('message');
})).then(t.step_func((event) => {
assert_equals(event.data, 'PASS child done');
t.done();
}));
} else {
// The child frame.
class BadConstructor extends HTMLElement {
constructor() {
destroyContext();
super();
}
}
window.customElements.define('x-x', BadConstructor);
try {
new BadConstructor();
} finally {
done();
}
}
})();
</script>