https://github.com/web-platform-tests/wpt
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Tip revision: 48d5c9b147ef862c719e5ffc75c358ab7b95ea1a authored by Jungkee Song on 23 March 2018, 14:51:17 UTC
Add a cleanup callback
Tip revision: 48d5c9b
2d.shadow.canvas.alpha.html
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.shadow.canvas.alpha</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>

<h1>2d.shadow.canvas.alpha</h1>
<p class="desc">Shadows are drawn correctly for partially-transparent canvases</p>


<script>
var t = async_test("Shadows are drawn correctly for partially-transparent canvases");
t.step(function() {

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

var offscreenCanvas2 = new OffscreenCanvas(100, 50);
var ctx2 = offscreenCanvas2.getContext('2d');
ctx2.fillStyle = 'rgba(255, 0, 0, 0.5)';
ctx2.fillRect(0, 0, 100, 50);
ctx.fillStyle = '#f00';
ctx.fillRect(0, 0, 100, 50);
ctx.shadowOffsetY = 50;
ctx.shadowColor = '#00f';
ctx.drawImage(offscreenCanvas2, 0, -50);
_assertPixelApprox(offscreenCanvas, 50,25, 127,0,127,255, "50,25", "127,0,127,255", 2);

t.done();

});
</script>
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