text: // DO NOT EDIT! This test has been generated by tools/gentest.py.
  // OffscreenCanvas test in a worker:2d.drawImage.zerosource
  // Description:drawImage with zero-sized source rectangle throws INDEX_SIZE_ERR
  // Note:
  
  importScripts("/resources/testharness.js");
  importScripts("/common/canvas-tests.js");
  
  var t = async_test("drawImage with zero-sized source rectangle throws INDEX_SIZE_ERR");
  t.step(function() {
  
  var offscreenCanvas = new OffscreenCanvas(100, 50);
  var ctx = offscreenCanvas.getContext('2d');
  
  ctx.fillStyle = '#0f0';
  ctx.fillRect(0, 0, 100, 50);
  var promise = new Promise(function(resolve, reject) {
      var xhr = new XMLHttpRequest();
      xhr.open("GET", '/images/green.png');
      xhr.responseType = 'blob';
      xhr.send();
      xhr.onload = function() {
          resolve(xhr.response);
      };
  });
  promise.then(function(response) {
      assert_throws("INDEX_SIZE_ERR", function() { ctx.drawImage(response, 10, 10, 0, 1, 0, 0, 100, 50); });
      assert_throws("INDEX_SIZE_ERR", function() { ctx.drawImage(response, 10, 10, 1, 0, 0, 0, 100, 50); });
      assert_throws("INDEX_SIZE_ERR", function() { ctx.drawImage(response, 10, 10, 0, 0, 0, 0, 100, 50); });
      _assertPixelApprox(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 2);
  });
  
  t.done();
  
  });
  done();
  