third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/pixel-manipulation/2d.imageData.object.clamp.html - Issue 2550713004: Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a

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Issue 2550713004: Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a (Closed)

Patch Set: Modify TestExpectations or download new baselines for tests. Created 4 years ago

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	1 <!DOCTYPE html>

	2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->

	3 <title>OffscreenCanvas test: 2d.imageData.object.clamp</title>

	4 <script src="/resources/testharness.js"></script>

	5 <script src="/resources/testharnessreport.js"></script>

	6 <script src="/common/canvas-tests.js"></script>

	7

	8 <h1>2d.imageData.object.clamp</h1>

	9 <p class="desc">ImageData.data clamps numbers to [0, 255]</p>

	10

	11

	12 <script>

	13 var t = async_test("ImageData.data clamps numbers to [0, 255]");

	14 t.step(function() {

	15

	16 var offscreenCanvas = new OffscreenCanvas(100, 50);

	17 var ctx = offscreenCanvas.getContext('2d');

	18

	19 var imgdata = ctx.getImageData(0, 0, 10, 10);

	20 imgdata.data[0] = 100;

	21 imgdata.data[0] = 300;

	22 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");

	23 imgdata.data[0] = 100;

	24 imgdata.data[0] = -100;

	25 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");

	26 imgdata.data[0] = 100;

	27 imgdata.data[0] = 200+Math.pow(2, 32);

	28 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");

	29 imgdata.data[0] = 100;

	30 imgdata.data[0] = -200-Math.pow(2, 32);

	31 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");

	32 imgdata.data[0] = 100;

	33 imgdata.data[0] = Math.pow(10, 39);

	34 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");

	35 imgdata.data[0] = 100;

	36 imgdata.data[0] = -Math.pow(10, 39);

	37 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");

	38 imgdata.data[0] = 100;

	39 imgdata.data[0] = -Infinity;

	40 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");

	41 imgdata.data[0] = 100;

	42 imgdata.data[0] = Infinity;

	43 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");

	44

	45 t.done();

	46

	47 });

	48 </script>

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