LayoutTests/fast/dom/constructors-overriding.html - WebKit - Git at Google

 <html>
 <head>
 <script>
 function print(message, color)
 {
     var paragraph = document.createElement("div");
     paragraph.appendChild(document.createTextNode(message));
     paragraph.style.fontFamily = "monospace";
     if (color)
         paragraph.style.color = color;
     document.getElementById("console").appendChild(paragraph);
 }

 function shouldBe(a, b)
 {
     var evalA = eval(a);
     if (evalA == b)
         print("PASS: " + a + " should be " + b + " and is.", "green");
     else
         print("FAIL: " + a + " should be " + b + " but instead is " + evalA + ".", "red");
 }

 function test()
 {
     if (window.testRunner)
         testRunner.dumpAsText();

     window.Image = 1;
     window.Option = 1;
     window.XMLHttpRequest = 1;
     window.XMLSerializer = 1;
     window.DOMParser = 1;
     window.XSLTProcessor = 1;

     shouldBe("window.Image", 1);
     shouldBe("window.Option", 1);
     shouldBe("window.XMLHttpRequest", 1);
     shouldBe("window.XMLSerializer", 1);
     shouldBe("window.DOMParser", 1);
     shouldBe("window.XSLTProcessor", 1);
 }
 </script>
 </head>

 <body onload="test();">
 <p>This page tests whether certain global constructors are read-only. Previous versions of WebKit incorrectly
    made them read-only.</p>
 <p>If the test passes, you'll see a series of pass message below.</p>
 <hr>

 <div id='console'></div>

 </body>
 </html>
	<html>
	<head>
	<script>
	function print(message, color)
	{
	var paragraph = document.createElement("div");
	paragraph.appendChild(document.createTextNode(message));
	paragraph.style.fontFamily = "monospace";
	if (color)
	paragraph.style.color = color;
	document.getElementById("console").appendChild(paragraph);
	}

	function shouldBe(a, b)
	{
	var evalA = eval(a);
	if (evalA == b)
	print("PASS: " + a + " should be " + b + " and is.", "green");
	else
	print("FAIL: " + a + " should be " + b + " but instead is " + evalA + ".", "red");
	}

	function test()
	{
	if (window.testRunner)
	testRunner.dumpAsText();

	window.Image = 1;
	window.Option = 1;
	window.XMLHttpRequest = 1;
	window.XMLSerializer = 1;
	window.DOMParser = 1;
	window.XSLTProcessor = 1;

	shouldBe("window.Image", 1);
	shouldBe("window.Option", 1);
	shouldBe("window.XMLHttpRequest", 1);
	shouldBe("window.XMLSerializer", 1);
	shouldBe("window.DOMParser", 1);
	shouldBe("window.XSLTProcessor", 1);
	}
	</script>
	</head>

	<body onload="test();">
	<p>This page tests whether certain global constructors are read-only. Previous versions of WebKit incorrectly
	made them read-only.</p>
	<p>If the test passes, you'll see a series of pass message below.</p>
	<hr>

	<div id='console'></div>

	</body>
	</html>