Content - bf41ce61516ee4002fac494ad763cbfbeb13b53a - 4c526e9/offscreen-canvas/compositing/2d.composite.uncovered.fill.destination-atop.html

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Tip revision: b4cd33ad178aa280fc59395236b0c9f55104ac5d authored by kritisingh1 on 25 March 2018, 09:18:50 UTC
test DOM XPath behaviour for root adjacent comments

Tip revision: b4cd33a

2d.composite.uncovered.fill.destination-atop.html

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

<h1>2d.composite.uncovered.fill.destination-atop</h1>
<p class="desc">fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.</p>


<script>
var t = async_test("fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.");
t.step(function() {

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


ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'destination-atop';
ctx.fillStyle = 'rgba(0, 0, 255, 0.75)';
ctx.translate(0, 25);
ctx.fillRect(0, 50, 100, 50);
_assertPixelApprox(offscreenCanvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);

t.done();

});
</script>

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