File: not-broken-while-load-task-scheduled.html

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<!doctype html>
<title>Image shouldn't be broken while load task is scheduled.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
async function run_test(prop) {
  let img = new Image();
  img.width = 50;
  img.height = 50;
  img.alt = "Anything non-empty";
  img[prop] = `/images/green.png?not-broken-while-load-task-scheduled-` + Math.random();
  let load = new Promise(r => img.addEventListener("load", r, { once: true }));
  document.body.appendChild(img);

  assert_equals(img.clientWidth, 50, "clientWidth");
  assert_equals(img.clientHeight, 50, "clientHeight");
  assert_equals(getComputedStyle(img).height, "50px", "Computed height");
  assert_equals(getComputedStyle(img).width, "50px", "Computed height");

  await load;

  assert_equals(img.clientWidth, 50, "clientWidth");
  assert_equals(img.clientHeight, 50, "clientHeight");
  assert_equals(getComputedStyle(img).height, "50px", "Computed height");
  assert_equals(getComputedStyle(img).width, "50px", "Computed height");
}

promise_test(() => run_test("src"));
promise_test(() => run_test("srcset"));
</script>