https://github.com/web-platform-tests/wpt
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Tip revision: a8fad0798ea933c6e48cc7910959dd9add4b1ec1 authored by James Graham on 15 May 2018, 21:31:15 UTC
Don't assume file_is_test when there's a top-level non-assert error
Tip revision: a8fad07
2d.composite.uncovered.nocontext.copy.worker.js
// DO NOT EDIT! This test has been generated by tools/gentest.py.
// OffscreenCanvas test in a worker:2d.composite.uncovered.nocontext.copy
// Description:drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.
// Note:

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

var t = async_test("drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.");
t.step(function() {

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


ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'copy';
var offscreenCanvas2 = new OffscreenCanvas(100, 50);
ctx.drawImage(offscreenCanvas2, 0, 0);
_assertPixelApprox(offscreenCanvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);

t.done();

});
done();
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