offscreen-canvas/the-canvas-state/2d.state.saverestore.transformation.html

<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.state.saverestore.transformation</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>

<h1>2d.state.saverestore.transformation</h1>
<p class="desc">save()/restore() affects the current transformation matrix</p>


<script>
var t = async_test("save()/restore() affects the current transformation matrix");
t.step(function() {

var offscreenCanvas = new OffscreenCanvas(100, 50);
var ctx = offscreenCanvas.getContext('2d');

ctx.fillStyle = '#0f0';
ctx.fillRect(0, 0, 100, 50);
ctx.save();
ctx.translate(200, 0);
ctx.restore();
ctx.fillStyle = '#f00';
ctx.fillRect(-200, 0, 100, 50);
_assertPixel(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255");

t.done();

});
</script>