LayoutTests/security/crypto-random-values.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <script src="../resources/js-test-pre.js"></script>
 <script src="resources/utilities.js"></script>
 </head>
 <body>
 <p id="description"></p>
 <div id="console"></div>
 <script>
 description("Tests crypto.randomValues.");

 if (!window.ArrayBuffer)
     debug("This test requres ArrayBuffers to run!");

 shouldBe("'crypto' in window", "true");
 shouldBe("'getRandomValues' in window.crypto", "true");

 try {
     // FIXME: This test is flaky.  If we ran this test every second since the
     //        beginning of the universe, on average, it would have failed
     //        2^{-748} times.

     var reference = new Uint8Array(100);
     var sample = new Uint8Array(100);

     crypto.getRandomValues(reference);
     crypto.getRandomValues(sample);

     var matchingBytes = 0;

     for (var i = 0; i < reference.length; i++) {
         if (reference[i] == sample[i])
             matchingBytes++;
     }

     shouldBe("matchingBytes < 100", "true");
 } catch(ex) {
     debug(ex);
 }

 </script>
 <script src="../resources/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="../resources/js-test-pre.js"></script>
	<script src="resources/utilities.js"></script>
	</head>
	<body>
	<p id="description"></p>
	<div id="console"></div>
	<script>
	description("Tests crypto.randomValues.");

	if (!window.ArrayBuffer)
	debug("This test requres ArrayBuffers to run!");

	shouldBe("'crypto' in window", "true");
	shouldBe("'getRandomValues' in window.crypto", "true");

	try {
	// FIXME: This test is flaky. If we ran this test every second since the
	// beginning of the universe, on average, it would have failed
	// 2^{-748} times.

	var reference = new Uint8Array(100);
	var sample = new Uint8Array(100);

	crypto.getRandomValues(reference);
	crypto.getRandomValues(sample);

	var matchingBytes = 0;

	for (var i = 0; i < reference.length; i++) {
	if (reference[i] == sample[i])
	matchingBytes++;
	}

	shouldBe("matchingBytes < 100", "true");
	} catch(ex) {
	debug(ex);
	}

	</script>
	<script src="../resources/js-test-post.js"></script>
	</body>
	</html>