51 lines
1.1 KiB
HTML
51 lines
1.1 KiB
HTML
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<!DOCTYPE html>
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<html>
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<body>
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<script src="../../resources/js-test-pre.js"></script>
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<script>
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description("Tests that recursive calls to MessagePort.postMessage() do not preempt timers.");
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jsTestIsAsync = true;
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function simulateSetImmediate()
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{
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var channel = new MessageChannel();
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// Use a fifo linked list to call callbacks in the right order.
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var head = {};
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var tail = head;
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channel['port1'].onmessage = function() {
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if (head.next != null) {
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head = head.next;
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var cb = head.cb;
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head.cb = null;
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cb();
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}
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};
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return function(cb) {
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tail.next = {cb: cb};
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tail = tail.next;
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channel['port2'].postMessage(0);
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};
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}
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window.setImmediate = simulateSetImmediate();
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var shouldExit = false;
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function iterate() {
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if (shouldExit) {
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testPassed("Timer has fired.");
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finishJSTest();
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return;
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}
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setImmediate(iterate);
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}
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setImmediate(iterate);
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setTimeout(function() {
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shouldExit = true;
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}, 10);
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</body>
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</html>
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