https://github.com/web-platform-tests/wpt
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Tip revision: bf21aa6a53367f9ad69c1f8c78d66c20270bbeaf authored by Andrea Marchesini on 04 April 2018, 17:43:55 UTC
setTimeout/setInterval should silently fail if the worker is shutting down,
Tip revision: bf21aa6
2d.composite.clip.destination-out.worker.js
// DO NOT EDIT! This test has been generated by tools/gentest.py.
// OffscreenCanvas test in a worker:2d.composite.clip.destination-out
// Description:fill() does not affect pixels outside the clip region.
// Note:

importScripts("/resources/testharness.js");
importScripts("/common/canvas-tests.js");

var t = async_test("fill() does not affect pixels outside the clip region.");
t.step(function() {

var offscreenCanvas = new OffscreenCanvas(100, 50);
var ctx = offscreenCanvas.getContext('2d');


ctx.fillStyle = '#0f0';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'destination-out';
ctx.rect(-20, -20, 10, 10);
ctx.clip();
ctx.fillStyle = '#f00';
ctx.fillRect(0, 0, 50, 50);
_assertPixel(offscreenCanvas, 25,25, 0,255,0,255, "25,25", "0,255,0,255");
_assertPixel(offscreenCanvas, 75,25, 0,255,0,255, "75,25", "0,255,0,255");

t.done();

});
done();
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