interrupted-accelerated-transition-final.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">

<html lang="en">
<head>
    <style type="text/css" media="screen">
        #box {
            display: inline-block;
            width: 100px;
            height: 100px;
            margin: 10px;
            background-color: blue;
            opacity: 0;
            transition: opacity 1s linear;
        }
        
        #box.faded {
            opacity: 1;
        }
    </style>

    <script src="../../animations/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]
      [0.5, 'box', 'opacity', 0.5, 0.1],
    ];
  
    function setupTest()
    {
      document.getElementById('box').className = 'faded';
    }
  
    runTransitionTest(expectedValues, setupTest);
    </script>
</head>
<body>
    <div id="box"></div>
    <div id="result"></div>
</body>
</html>

chromium/third_party/blink/web_tests/transitions/resources/interrupted-accelerated-transition-final.html