// DO NOT EDIT! This test has been generated by tools/gentest.py. // OffscreenCanvas test in a worker:2d.composite.globalAlpha.canvaspattern // Description: // Note: importScripts("/resources/testharness.js"); importScripts("/common/canvas-tests.js"); var t = async_test(""); t.step(function() { var offscreenCanvas = new OffscreenCanvas(100, 50); var ctx = offscreenCanvas.getContext('2d'); var offscreenCanvas2 = new OffscreenCanvas(100, 50); var ctx2 = offscreenCanvas2.getContext('2d'); ctx2.fillStyle = '#f00'; ctx2.fillRect(0, 0, 100, 50); ctx.fillStyle = '#0f0'; ctx.fillRect(0, 0, 100, 50); ctx.fillStyle = ctx.createPattern(offscreenCanvas2, 'no-repeat'); ctx.globalAlpha = 0.01; // avoid any potential alpha=0 optimisations ctx.fillRect(0, 0, 100, 50); _assertPixelApprox(offscreenCanvas, 50,25, 2,253,0,255, "50,25", "2,253,0,255", 2); t.done(); }); done();