// DO NOT EDIT! This test has been generated by tools/gentest.py. // OffscreenCanvas test in a worker:2d.composite.uncovered.nocontext.destination-atop // 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 = 'destination-atop'; 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();