45 lines
1.2 KiB
HTML
45 lines
1.2 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script src="../../resources/js-test-pre.js"></script>
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</head>
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<body>
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<script>
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window.jsTestIsAsync = true;
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description("This tests early Math.random values are not consistently nearly identical.");
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var seen = 0;
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var expected = 100;
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var framesWithSimiliarEarlyRandomValues = 0;
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var lastRandom1 = 0;
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window.addEventListener("message", function(event) {
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if (event.data.similiar)
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framesWithSimiliarEarlyRandomValues++;
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if (event.data.random1 === lastRandom1)
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testFailed("Random number should be different between frames");
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lastRandom1 = event.data.random1;
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if (++seen === expected) {
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shouldBeTrue("framesWithSimiliarEarlyRandomValues <= 5");
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if (framesWithSimiliarEarlyRandomValues > 5)
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debug("framesWithSimiliarEarlyRandomValues: " + framesWithSimiliarEarlyRandomValues);
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finishJSTest();
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}
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});
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function createFrame() {
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var iframe = document.createElement("iframe");
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iframe.src = "../resources/math-random-initial-values-iframe.html";
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document.body.appendChild(iframe);
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}
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for (var i = 0; i < expected; ++i)
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createFrame();
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</body>
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</html>
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