42 lines
1.0 KiB
HTML
42 lines
1.0 KiB
HTML
<!DOCTYPE html>
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<script src="../../../resources/js-test-pre.js"></script>
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<script>
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description('Test that WebKitMutationObserver.disconnect cancels pending delivery');
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window.jsTestIsAsync = true;
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var mutations;
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var observer;
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function start() {
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mutations = null;
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div = document.createElement('div');
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observer = new MutationObserver(function(m) {
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mutations = m;
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});
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observer.observe(div, { attributes: true });
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div.setAttribute('foo', 'bar');
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observer.disconnect();
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setTimeout(next, 0);
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}
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function next() {
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debug('Disconnecting should cancel any pending delivery...');
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shouldBeNull('mutations');
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observer.observe(div, { attributes: true });
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div.setAttribute('bar', 'baz');
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setTimeout(finish, 0);
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}
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function finish() {
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debug('...and re-observing should not see any of the previously-generated records.');
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shouldBe('mutations.length', '1');
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shouldBe('mutations[0].attributeName', '"bar"');
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finishJSTest();
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}
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start();
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</script>
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<script src="../../../resources/js-test-post.js"></script>
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