chromium/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.worker.js

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.imageData.get.nonpremul
// Description:getImageData() returns non-premultiplied colors
// Note:

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

var t = async_test("getImageData() returns non-premultiplied colors");
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 = 'rgba(255, 255, 255, 0.5)';
  ctx.fillRect(0, 0, 100, 50);
  var imgdata = ctx.getImageData(10, 10, 10, 10);
  _assert(imgdata.data[0] > 200, "imgdata.data[\""+(0)+"\"] > 200");
  _assert(imgdata.data[1] > 200, "imgdata.data[\""+(1)+"\"] > 200");
  _assert(imgdata.data[2] > 200, "imgdata.data[\""+(2)+"\"] > 200");
  _assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100");
  _assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200");
  t.done();
});
done();