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<!DOCTYPE html>
<title>Test setTimeOut,fired in decreasing order in Web Workers.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test (t => {
  let worker;

  return new Promise(resolve => {
    worker = new Worker('support/Worker-timeout-decreasing-order.js');
    worker.postMessage('start');
    worker.onmessage = resolve;
  }).then(evt => {
    assert_equals(evt.data, 1);
    return (new Promise(resolve => worker.onmessage = resolve));
  }).then(evt => {
    assert_equals(evt.data, 2);
    return (new Promise(resolve => worker.onmessage = resolve));
  }).then(evt => {
    assert_equals(evt.data, 3);
  });
}, 'Tests timeouts on the worker are fired in decreasing order.');
</script>