third_party/WebKit/LayoutTests/fast/forms/elements-invalidate-on-form-attribute-invalidation.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <div id="container">
   5 <form id="someForm"></form>
   6 <input type="text" name="someName" form="someForm">
   7 </div>
   8 <script src="../../resources/js-test.js"></script>
   9 <script>
  10
  11 description("Tests form.elements is invalidated when input element's form attribute is changed.");
  12
  13 var input = document.querySelector('input');
  14 var collection;
  15 evalAndLog("collection = document.getElementById('someForm').elements;");
  16 shouldBe("collection.length", "1");
  17 shouldBe("collection.length; input.setAttribute('form', 'otherForm'); collection.length", "0");
  18 shouldBe("collection.length; input.setAttribute('form', 'someForm'); collection.length", "1");
  19
  20 container.style.display = 'none';
  21
  22 </script>
  23 </body>
  24 </html>