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28 lines
1 KiB
JavaScript
28 lines
1 KiB
JavaScript
// DO NOT EDIT! This test has been generated by tools/gentest.py.
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// OffscreenCanvas test in a worker:2d.imageData.create2.initial
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// Description:createImageData(sw, sh) returns transparent black data of the right size
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// Note:
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importScripts("/resources/testharness.js");
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importScripts("/common/canvas-tests.js");
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var t = async_test("createImageData(sw, sh) returns transparent black data of the right size");
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t.step(function() {
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var offscreenCanvas = new OffscreenCanvas(100, 50);
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var ctx = offscreenCanvas.getContext('2d');
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var imgdata = ctx.createImageData(10, 20);
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_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
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_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
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_assert(imgdata.width > 0, "imgdata.width > 0");
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var isTransparentBlack = true;
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for (var i = 0; i < imgdata.data.length; ++i)
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if (imgdata.data[i] !== 0)
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isTransparentBlack = false;
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_assert(isTransparentBlack, "isTransparentBlack");
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t.done();
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});
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done();
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