fcp-with-rtl.html | Explore in Territory

<!DOCTYPE html>
<head>
<title>Performance Paint Timing Test: FCP due to direction change</title>
<style>
  #text {
    right: -100px;
    position: absolute;
  }

  body {
    direction: rtl;
  }
</style>
</head>
<body>
<script src="../resources/utils.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="text">TEXT</div>
<script>
  setup({"hide_test_state": true});
  promise_test(async t => {
      assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
      await new Promise(r => window.addEventListener('load', r));
      await assertNoFirstContentfulPaint(t);
      document.body.style.direction = 'ltr'
      await assertFirstContentfulPaint(t);
  }, 'FCP should fire when coordinates are negative, if within document scrollable area');
</script>
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/paint-timing/fcp-only/fcp-with-rtl.html