testing/web-platform/tests/html/canvas/offscreen/the-canvas-state/2d.state.saverestore.stack.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
24
25
26
27
28
29
30
31

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.state.saverestore.stack
// Description:save()/restore() can be nested as a stack
// Note:

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

var t = async_test("save()/restore() can be nested as a stack");
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.lineWidth = 1;
  ctx.save();
  ctx.lineWidth = 2;
  ctx.save();
  ctx.lineWidth = 3;
  _assertSame(ctx.lineWidth, 3, "ctx.lineWidth", "3");
  ctx.restore();
  _assertSame(ctx.lineWidth, 2, "ctx.lineWidth", "2");
  ctx.restore();
  _assertSame(ctx.lineWidth, 1, "ctx.lineWidth", "1");
  t.done();
});
done();