gecko-dev/dom/smil/test/test_smilCSSInherit.xhtml

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>Test for Animation Behavior on CSS Properties</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="smilTestUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
<svg id="svg" xmlns="http://www.w3.org/2000/svg" width="300px" height="200px"
     onload="this.pauseAnimations()">
  <!--  At 50% through the animation, the following should be true:
   * First <g> has font-size = 5px (1/2 between 0px and 10px)
   * Next <g> has font-size = 10px (1/2 between inherit=5px and 15px)
   * Next <g> has font-size = 15px (1/2 between inherit=10px and 20px)
   * Next <g> has font-size = 20px (1/2 between inherit=15px and 25px)
   * Next <g> has font-size = 25px (1/2 between inherit=20px and 30px)
   * Next <g> has font-size = 30px (1/2 between inherit=25px and 35px)
   * Next <g> has font-size = 35px (1/2 between inherit=30px and 40px)
   * Next <g> has font-size = 40px (1/2 between inherit=35px and 45px)
   * Next <g> has font-size = 45px (1/2 between inherit=40px and 50px)
   * Next <g> has font-size = 50px (1/2 between inherit=45px and 55px)
   * <text> has font-size = 75px (1/2 between inherit=50px and 100px)
  -->
  <g><animate attributeName="font-size" attributeType="CSS"
              from="0px"     to="10px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="15px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="20px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="25px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="30px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="35px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="40px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="45px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="50px" begin="0s" dur="1s"/>
  <g><animate attributeName="font-size" attributeType="CSS"
              from="inherit" to="55px" begin="0s" dur="1s"/>
  <text y="100px" x="0px">
    abc
    <animate attributeName="font-size" attributeType="CSS"
             from="inherit" to="100px" begin="0s" dur="1s"/>
  </text></g></g></g></g></g></g></g></g></g></g>
</svg>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
<![CDATA[
SimpleTest.waitForExplicitFinish();

function main() {
  if (!SMILUtil.isSMILEnabled()) {
    ok(false, "SMIL dosn't seem to be enabled");
    SimpleTest.finish();
    return;
  }

  // Pause & seek to halfway through animation
  var svg = SMILUtil.getSVGRoot();
  ok(svg.animationsPaused(), "should be paused by <svg> load handler");
  is(svg.getCurrentTime(), 0, "should be paused at 0 in <svg> load handler");
  svg.setCurrentTime(0.5);

  var text = document.getElementsByTagName("text")[0];
  var computedVal = SMILUtil.getComputedStyleSimple(text, "font-size");
  var expectedVal = "75px";

  // NOTE: There's a very small chance (1/11! = 1/39,916,800) that we'll happen
  // to composite our 11 animations in the correct order, in which cast this
  // "todo_is" test would sporadically pass. I think this is infrequent enough
  // to accept as a sporadic pass rate until this bug is fixed (at which point
  // this "todo_is" will become an "is")
  todo_is(computedVal, expectedVal,
         "deeply-inherited font-size halfway through animation");

  SimpleTest.finish();
}

window.addEventListener("load", main, false);
]]>
</script>
</pre>
</body>
</html>