summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/html/canvas/offscreen/canvas-host/2d.canvas.host.initial.reset.different.worker.js
blob: 6074d4f2a2c88eda4d8f91fd0b931fda6bbb7f01 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.canvas.host.initial.reset.different
// Description:Changing size resets canvas to transparent black
// Note:

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

var t = async_test("Changing size resets canvas to transparent black");
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, 50, 50);
  _assertPixel(canvas, 20,20, 255,0,0,255);
  canvas.width = 50;
  _assertPixel(canvas, 20,20, 0,0,0,0);
  t.done();
});
done();