src/third_party/WebKit/LayoutTests/fast/dom/MutationObserver/document-write.html

   1 <!DOCTYPE html>
   2 <head>
   3 </head>
   4 <body>
   5 <div id="result">RESULT</div>
   6 <script>
   7
   8 var resultDiv = document.getElementById('result');
   9
  10 if (window.testRunner) {
  11     testRunner.dumpAsText();
  12     testRunner.waitUntilDone();
  13 }
  14
  15 var count = 0;
  16
  17 var observer = new MutationObserver(function(r) {
  18     count += r.length;
  19 });
  20
  21 var div = document.createElement('div');
  22 observer.observe(div, { attributes: true });
  23
  24 function mutate() {
  25       div.setAttribute('count', count);
  26 }
  27
  28 var counts = [];
  29 function check() {
  30     counts.push(count);
  31 }
  32
  33 function finish() {
  34     setTimeout(function() {
  35         check();
  36
  37         var result = counts[0] == 0 &&
  38                      counts[1] == 0 &&
  39                      counts[2] == 0 &&
  40                      counts[3] == 1 ? 'PASSED' : 'FAILED';
  41
  42         document.documentElement.appendChild(document.createElement('body'));
  43         document.body.innerHTML = result;
  44         if (window.testRunner) {
  45             testRunner.notifyDone();
  46         }
  47     }, 0);
  48 }
  49
  50 finish();
  51 </script>
  52 <iframe onload="mutate(); check(); document.write('<script>check();</script>'); document.close(); check(); finish();">
  53 </body>