third_party/WebKit/LayoutTests/fast/xpath/detached-subtree-invalidate-iterator.html

   1 <html>
   2 <head>
   3 <script src="../../resources/js-test.js"></script>
   4 <script src="xpath-test-pre.js"></script>
   5 </head>
   6 <body>
   7 <p>Test that iterators are invalidated even if the original context is detached.</p>
   8 <div id="console"></div>
   9 <script>
  10 var doc = document.implementation.createDocument(null, "doc", null);
  11 var root = doc.createElement("div");
  12 root.appendChild(doc.createElement("span"));
  13 root.appendChild(doc.createElement("p"));
  14
  15 var result = doc.evaluate(".//*", root, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
  16 shouldBe("result.invalidIteratorState", "false");
  17 shouldBe("result.iterateNext().tagName", "'span'");
  18
  19 debug("Modifying the document...");
  20 doc.documentElement.setAttribute("foo", "bar");
  21
  22 shouldBe("result.invalidIteratorState", "true");
  23 shouldThrow("result.iterateNext()");
  24
  25 </script>
  26 </body>
  27 </html>