third_party/WebKit/LayoutTests/fast/js/script-tests/constructor.js

   1 description("This tests the constructor property of DOM objects: http://bugs.webkit.org/show_bug.cgi?id=11315");
   2
   3 shouldBeFalse("window.document.constructor === window.Object");
   4 shouldBeTrue("window.document.constructor === window.HTMLDocument");
   5 shouldBeTrue("window.document.constructor.prototype === window.HTMLDocument.prototype");
   6 shouldBeTrue("window.document.constructor.prototype.__proto__ === window.HTMLDocument.prototype.__proto__");
   7 shouldBeTrue("window.document.constructor.prototype.__proto__ === window.Document.prototype");
   8
   9 shouldBeTrue("window.document.body.constructor === window.HTMLBodyElement");
  10 shouldBeTrue("window.document.body.constructor.prototype === window.HTMLBodyElement.prototype");
  11 shouldBeTrue("window.document.body.constructor.prototype.__proto__ === window.HTMLBodyElement.prototype.__proto__");
  12 shouldBeTrue("window.document.body.constructor.prototype.__proto__ === window.HTMLElement.prototype");
  13
  14 var htmlCollection = document.getElementsByTagName('script');
  15 shouldBeTrue("htmlCollection.constructor === window.HTMLCollection");
  16 shouldBeTrue("htmlCollection.constructor.prototype === window.HTMLCollection.prototype");
  17
  18 var mutationEvent = document.createEvent("MutationEvent");
  19 shouldBeTrue("mutationEvent.constructor === window.MutationEvent");
  20 shouldBeTrue("mutationEvent.constructor.prototype.__proto__ === window.Event.prototype");