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

  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
  ctx.fillRect(0, 0, 100, 50);
  ctx.globalCompositeOperation = 'destination-in';
  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
  ctx.drawImage(offscreenCanvas2, 0, 0);
  _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
  t.done();
});
done();