third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-inheritance.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <link rel="help" href="http://www.w3.org/TR/2012/WD-XMLHttpRequest-20121206/#xmlhttprequesteventtarget">
   5 <script src="/js-test-resources/js-test.js"></script>
   6 </head>
   7 <body>
   8 <script>
   9 description("Checks the prototype chain of XMLHttpRequest / XMLHttpRequestUpload.");
  10
  11 function className(obj) {
  12    return Object.prototype.toString.call(obj).slice(8, -1);
  13 }
  14
  15 // XMLHttpRequest.
  16 shouldBeEqualToString("XMLHttpRequest.__proto__.name", "XMLHttpRequestEventTarget");
  17 shouldBeEqualToString("XMLHttpRequest.prototype.__proto__.constructor.name", "XMLHttpRequestEventTarget");
  18 shouldBeEqualToString("className(XMLHttpRequest.prototype.__proto__)", "XMLHttpRequestEventTargetPrototype");
  19 shouldBe("XMLHttpRequest.prototype.__proto__.__proto__", "EventTarget.prototype");
  20
  21 // XMLHttpRequestUpload.
  22 shouldBeEqualToString("XMLHttpRequestUpload.__proto__.name", "XMLHttpRequestEventTarget");
  23 shouldBeEqualToString("XMLHttpRequestUpload.prototype.__proto__.constructor.name", "XMLHttpRequestEventTarget");
  24 shouldBeEqualToString("className(XMLHttpRequestUpload.prototype.__proto__)", "XMLHttpRequestEventTargetPrototype");
  25 shouldBe("XMLHttpRequestUpload.prototype.__proto__.__proto__", "EventTarget.prototype");
  26 </script>
  27 </body>
  28 </html>