chromium/third_party/blink/web_tests/virtual/threaded/synthetic_gestures/synthetic-pinch-zoom-gesture-touchpad-zoom-out-slow.html

<!DOCTYPE html>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script src="../../../resources/gesture-util.js"></script>
<link href="synthetic-pinch-zoom-gesture.css" rel="stylesheet">
<script src="synthetic-pinch-zoom-gesture.js"></script>

<script>
  const MOUSE_INPUT = GestureSourceType.MOUSE_INPUT;

  const t = async_test(
      "This tests that gpuBenchmarking.pinchBy is relatively accurate when zooming out slowly for touchpad pinch.");
  const testCases = [
    { startingScale: 4, scale: 0.5, speed: 100, gestureSource: MOUSE_INPUT, msg: "Zooming out slowly" },
  ];
  addEventListener('load', () => {
    runAllTestCases(t, testCases).then(t.done.bind(t));
  });
</script>
<div></div>