third_party/WebKit/LayoutTests/fast/dom/document-set-title-mutations.html

   1 <!doctype html>
   2 <title>old</title>
   3 <script src="../../resources/js-test.js"></script>
   4 <script>
   5     window.jsTestIsAsync = true;
   6     description("Test for mutations to childList when setting document.title.");
   7     var mutations;
   8     function finish() {
   9         shouldBe('mutations.length', '1');
  10         shouldBe('mutations[0].type', '"childList"');
  11         shouldBe('mutations[0].addedNodes.length', '1');
  12         shouldBe('mutations[0].removedNodes.length', '1');
  13         finishJSTest();
  14     }
  15
  16     var titleElement = document.querySelector('title');
  17     var i = 0;
  18
  19     var observer = new MutationObserver(function(mutations) {
  20         window.mutations = mutations;
  21     });
  22     observer.observe(titleElement, { childList: true });
  23     document.title = "new";
  24
  25     setTimeout(finish, 0);
  26 </script>
  27 <body>
  28 </body>