track-posttask.html | Explore in Territory

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Verify that setTimeout tasks can be properly tracked.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/task-ids.js"></script>
</head>
<body>
<script>
promise_test(async t => {
  // `initialId` should be propagated through the whole chain.
  const initialId = initializeTaskId();

  await scheduler.postTask(async () => {
    assert_equals(scheduler.taskId, initialId);

    await scheduler.postTask(() => {
      assert_equals(scheduler.taskId, initialId);
    });

    assert_equals(scheduler.taskId, initialId);
  });
}, "postTask chain.");

promise_test(async () => {
    const initialId = initializeTaskId();
    await scheduler.postTask(async () => {
      assert_equals(scheduler.taskId, initialId,
                    "initialId is an ancestor of the currentTaskId");
      await fetch("/resources/blank.html");
      assert_equals(scheduler.taskId, initialId,
                    "initialId is ancestor of fetch continuation.");
    });
}, "Single postTask with multiple internal awaited tasks");
</script>
</body>
</html>
chromium/third_party/blink/web_tests/wpt_internal/task-tracking/track-posttask.html
