chromium/third_party/blink/web_tests/animations/big-rotation.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>Testing Rotations > 180 degrees</title>
  <style type="text/css" media="screen">
    #box {
      //position: absolute;
      height: 100px;
      width: 100px;
      background-color: blue;
      animation-duration: 10s;
      animation-timing-function: linear;
      animation-name: rotate;
      animation-fill-mode: forwards;
    }
    @keyframes rotate {
        from { transform: rotate(0); }
        to   { transform: rotate(1800deg); }
    }
  </style>
  <script src="resources/animation-test-helpers.js" type="text/javascript" charset="utf-8"></script>
  <script type="text/javascript" charset="utf-8">

    const expectedValues = [
      // [time, element-id, property, expected-value, tolerance]
      [1, "box", "transform", [-1,0,0,-1,0,0], 0.2],
      [2, "box", "transform", [1,0,0,1,0,0], 0.2],
      [3, "box", "transform", [-1,0,0,-1,0,0], 0.2],
    ];

    runAnimationTest(expectedValues);

  </script>
</head>
<body>
<p>
This test shows rotation of > 180 degrees. The box should make five rotations.
<div id="box">
</div>
<div id="result">
</div>
</body>
</html>