third_party/WebKit/LayoutTests/fast/js/construct-global-object.html

   1 <p>This page tests which object prototype is used when calling "new" across
   2 windows. If the test passes, you'll see a series of PASS messages below.
   3 </p>
   4
   5 <pre id="console"></pre>
   6
   7 <iframe id="iframe" style="visibility:hidden"></iframe>
   8
   9 <script>
  10 function log(s)
  11 {
  12     document.getElementById("console").appendChild(document.createTextNode(s + "\n"));
  13 }
  14
  15 function shouldBe(a, aDescription, b)
  16 {
  17     if (a === b)
  18         log("PASS: " + aDescription + " should be " + b + " and is.");
  19     else
  20         log("FAIL: " + aDescription + " should be " + b + " but instead is " + a + ".");
  21 }
  22
  23 if (window.testRunner)
  24     testRunner.dumpAsText();
  25
  26 frames[0].document.open();
  27 frames[0].document.write("<\script>function O() { }</script\>");
  28 frames[0].document.close();
  29
  30 var o = new frames[0].O;
  31 shouldBe(o instanceof frames[0].Object, "o instanceof frames[0].Object", true);
  32 shouldBe(o.__proto__.__proto__ === frames[0].Object.prototype, "o.__proto__.__proto__ === frames[0].Object.prototype", true);
  33 </script>