// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.composite.globalAlpha.canvas
// Description:
// Note:

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

var t = async_test("");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
    throw reason;
});
t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);
  var ctx = canvas.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);
  // Avoiding any potential alpha = 0 optimisations.
  ctx.globalAlpha = 0.01;
  ctx.drawImage(offscreenCanvas2, 0, 0);
  _assertPixelApprox(canvas, 50,25, 2,253,0,255, 2);
  t.done();
});
done();