<!DOCTYPE html>
<script>
  if (window.internals)
    internals.settings.setSpringTimingFunctionEnabled(true);
</script>
<style type="text/css" media="screen">
  .box {
    position: relative;
    left: 100px;
    top: 0px;
    height: 5px;
    width: 5px;
    background-color: blue;
    animation-duration: 1s;
    animation-name: anim;
  }
  @keyframes anim {
      from { left: 0px; }
      to   { left: 500px; }
  }
  #box1 {
    animation-timing-function: spring(1 100 10 0);
  }
  
</style>
<script src="resources/animation-test-helpers.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">

  const expectedValues = [
    // [animation-name, time, element-id, property, expected-value, tolerance]
    ["anim", 0.25, "box1", "left", 512, 5],
    ["anim", 0.50, "box1", "left", 537, 5],
    ["anim", 0.75, "box1", "left", 487, 5],
  ];

  runAnimationTest(expectedValues);

</script>
<body>
This test performs an animation of the left property. It animates over 1 second.
It takes 3 snapshots and expects each result to be within a specified range.
<div class="box" id="box1"></div>
<div id="result">
</div>
</body>