testing/web-platform/tests/html/canvas/offscreen/drawing-rectangles-to-the-canvas/2d.clearRect.globalcomposite.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.clearRect.globalcomposite
// Description:clearRect is not affected by globalCompositeOperation
// Note:

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

var t = async_test("clearRect is not affected by globalCompositeOperation");
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 = '#f00';
  ctx.fillRect(0, 0, 100, 50);
  ctx.globalCompositeOperation = 'destination-atop';
  ctx.clearRect(0, 0, 100, 50);
  _assertPixel(canvas, 50,25, 0,0,0,0);
  t.done();
});
done();