Content - dff39cfaaaa35dc38be2e488463ca277bdb34a2e - c26cdd0/performance-timeline/po-disconnect.html

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Tip revision: 8ee803e171bc0b0d5e93bebd4a56e3200f08421d authored by Chris Rebert on 29 December 2016, 03:02:36 UTC
Add test for MouseEvent.toElement & MouseEvent.fromElement

Tip revision: 8ee803e

po-disconnect.html

<!DOCTYPE HTML>
<meta charset=utf-8>
<title>PerformanceObservers: disconnect</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="performanceobservers.js"></script>
<h1>PerformanceObservers: disconnect</h1>
<div id="log"></div>
<script>
  async_test(function (t) {
    var observer = new PerformanceObserver(
        t.step_func(function (entryList, obs) {
          assert_unreached("This callback must not be invoked");
        })
      );
    observer.observe({entryTypes: ["mark", "measure", "navigation"]});
    observer.disconnect();
    performance.mark("mark1");
    performance.measure("measure1");
    t.step_timeout(function () {
      t.done();
    }, 2000);
  }, "disconnected callbacks must not be invoked");

  test(function () {
    var obs = new PerformanceObserver(function () { return true; });
    obs.disconnect();
    obs.disconnect();
  }, "disconnecting an unconnected observer is a no-op");

  async_test(function (t) {
    var observer = new PerformanceObserver(
        t.step_func(function(entryList, obs) {
          checkEntries(entryList.getEntries(),
            [{ entryType: "mark", name: "mark1"}]);
          t.done();
        })
      );
    observer.observe({entryTypes: ["mark"]});
    performance.mark("mark1");
    observer.disconnect();
    performance.mark("mark2");
  }, "An observer disconnected after a mark must receive the mark");
</script>

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