testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.worker.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.imageData.get.length
// Description:getImageData() returns a correctly-sized Uint8ClampedArray
// Note:

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

var t = async_test("getImageData() returns a correctly-sized Uint8ClampedArray");
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.getImageData(0, 0, 10, 10);
  _assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
  t.done();
});
done();