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37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
// DO NOT EDIT! This test has been generated by tools/gentest.py.
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// OffscreenCanvas test in a worker:2d.composite.uncovered.pattern.source-in
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// Description:Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.
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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("Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.");
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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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ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
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ctx.fillRect(0, 0, 100, 50);
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ctx.globalCompositeOperation = 'source-in';
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var promise = new Promise(function(resolve, reject) {
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var xhr = new XMLHttpRequest();
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xhr.open("GET", '/images/yellow.png');
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xhr.responseType = 'blob';
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xhr.send();
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xhr.onload = function() {
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resolve(xhr.response);
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};
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});
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promise.then(function(response) {
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ctx.fillStyle = ctx.createPattern(response, 'no-repeat');
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ctx.fillRect(0, 50, 100, 50);
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_assertPixelApprox(offscreenCanvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);
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});
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t.done();
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});
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done();
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