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path: root/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.worker.js
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// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.imageData.put.created
// Description:putImageData() puts image data from createImageData() onto the canvas
// Note:

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

var t = async_test("putImageData() puts image data from createImageData() onto the canvas");
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 imgdata = ctx.createImageData(100, 50);
  for (var i = 0; i < imgdata.data.length; i += 4) {
      imgdata.data[i] = 0;
      imgdata.data[i+1] = 255;
      imgdata.data[i+2] = 0;
      imgdata.data[i+3] = 255;
  }
  ctx.fillStyle = '#f00';
  ctx.fillRect(0, 0, 100, 50)
  ctx.putImageData(imgdata, 0, 0);
  _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
  t.done();
});
done();