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+++ b/testing/web-platform/tests/html/canvas/element/pixel-manipulation/2d.imageData.object.clamp.html
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+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>Canvas test: 2d.imageData.object.clamp</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
+<body class="show_output">
+
+<h1>2d.imageData.object.clamp</h1>
+<p class="desc">ImageData.data clamps numbers to [0, 255]</p>
+
+
+<p class="output">Actual output:</p>
+<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
+
+<ul id="d"></ul>
+<script>
+var t = async_test("ImageData.data clamps numbers to [0, 255]");
+_addTest(function(canvas, ctx) {
+
+ var imgdata = ctx.getImageData(0, 0, 10, 10);
+
+ imgdata.data[0] = 100;
+ imgdata.data[0] = 300;
+ _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+ imgdata.data[0] = 100;
+ imgdata.data[0] = -100;
+ _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+
+ imgdata.data[0] = 100;
+ imgdata.data[0] = 200+Math.pow(2, 32);
+ _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+ imgdata.data[0] = 100;
+ imgdata.data[0] = -200-Math.pow(2, 32);
+ _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+
+ imgdata.data[0] = 100;
+ imgdata.data[0] = Math.pow(10, 39);
+ _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+ imgdata.data[0] = 100;
+ imgdata.data[0] = -Math.pow(10, 39);
+ _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+
+ imgdata.data[0] = 100;
+ imgdata.data[0] = -Infinity;
+ _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+ imgdata.data[0] = 100;
+ imgdata.data[0] = Infinity;
+ _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+
+});
+</script>
+