chromium/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/drawing-images-to-the-canvas/2d.drawImage.self.1.worker.js

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.drawImage.self.1
// 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');

  ctx.fillStyle = '#0f0';
  ctx.fillRect(0, 0, 50, 50);
  ctx.fillStyle = '#f00';
  ctx.fillRect(50, 0, 50, 50);
  ctx.drawImage(canvas, 50, 0);

  _assertPixelApprox(canvas, 0,0, 0,255,0,255, 2);
  _assertPixelApprox(canvas, 99,0, 0,255,0,255, 2);
  _assertPixelApprox(canvas, 0,49, 0,255,0,255, 2);
  _assertPixelApprox(canvas, 99,49, 0,255,0,255, 2);
  t.done();
});
done();