text: // DO NOT EDIT! This test has been generated by tools/gentest.py.
  // OffscreenCanvas test in a worker:2d.composite.uncovered.pattern.source-out
  // Description:Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.
  // Note:
  
  importScripts("/resources/testharness.js");
  importScripts("/2dcontext/resources/canvas-tests.js");
  
  var t = async_test("Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.");
  t.step(function() {
  
  var offscreenCanvas = new OffscreenCanvas(100, 50);
  var ctx = offscreenCanvas.getContext('2d');
  
  
  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
  ctx.fillRect(0, 0, 100, 50);
  ctx.globalCompositeOperation = 'source-out';
  var promise = new Promise(function(resolve, reject) {
      var xhr = new XMLHttpRequest();
      xhr.open("GET", '/images/yellow.png');
      xhr.responseType = 'blob';
      xhr.send();
      xhr.onload = function() {
          resolve(xhr.response);
      };
  });
  promise.then(function(response) {
      ctx.fillStyle = ctx.createPattern(response, 'no-repeat');
      ctx.fillRect(0, 50, 100, 50);
      _assertPixelApprox(offscreenCanvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);
  });
  
  t.done();
  
  });
  done();
  