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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.shadow.image.alpha</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<h1>2d.shadow.image.alpha</h1>
<p class="desc">Shadows are drawn correctly for partially-transparent images</p>
<script>
promise_test(async t => {
var canvas = new OffscreenCanvas(100, 50);
var ctx = canvas.getContext('2d');
ctx.fillStyle = '#f00';
ctx.fillRect(0, 0, 100, 50);
ctx.shadowOffsetY = 50;
ctx.shadowColor = '#00f';
var response = await fetch('/images/transparent50.png')
var blob = await response.blob();
var img = await createImageBitmap(blob);
ctx.drawImage(img, 0, -50);
_assertPixelApprox(canvas, 50,25, 127,0,127,255, 2);
}, "Shadows are drawn correctly for partially-transparent images");
</script>
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