chromium/third_party/blink/web_tests/fast/css/counters/counter-reset-001.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
 <head>
  <title>CSS 2.1 Test Suite: dynamic changes to 'counter-increment'</title>
  <link rel="help" href="http://www.w3.org/TR/CSS21/generate.html#counters">
  <link rel="help" href="http://www.w3.org/TR/CSS21/generate.html#propdef-content">
  <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#counter">
  <meta http-equiv="Content-Script-Type" content="text/javascript"></meta>
  <style type="text/css">

  body { white-space: nowrap; }


  #test, .reset { counter-reset: c; }
  .increment:before { content: counters(c, ".") "-"; }
  .increment { counter-increment: c; }

  </style>
  <script type="text/javascript">

  function run() {
      if (window.testRunner) {
          testRunner.dumpAsText();
          // This call ensures the layout happened before we modify the DOM tree.
          internals.counterValue(document.getElementById("span1"));
      }

      var t = document.getElementById("test");
      t.removeChild(t.childNodes.item(1));

      if (window.testRunner) {
          testElement = document.getElementById("test");
          console = document.getElementById("console");
          spanList = testElement.getElementsByTagName("span");
          for (i = 0; i < spanList.length; ++i ) {
              newSpanElement = document.createElement("span");
              newSpanElement.innerText = internals.counterValue(document.getElementById(spanList.item(i).getAttribute("id")));
              if (newSpanElement.innerText.length)
                  newSpanElement.innerText = newSpanElement.innerText + "-";
              console.appendChild(newSpanElement);
          }
      }
  }

  </script>
 </head>
 <body onload="run();">

 <p>The following two lines should be the same:</p>

 <div id="test"><span id="span1" class="increment"></span><span id="span2" class="reset"></span><span id="span3" class="increment"></span><span id="span4" class="increment"></span></div>

 <div id="reference">1-2-3-</div>
 <hr>
 <div id="console"/>
 </body>
</html>