https://github.com/web-platform-tests/wpt
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Tip revision: c4de0019f3aa95861f0c9f646e9cd0c0f1252594 authored by Anne van Kesteren on 23 March 2018, 17:49:38 UTC
Comment out SVGElement dependency from html.idl
Tip revision: c4de001
2d.composite.image.source-atop.html
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.composite.image.source-atop</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>

<h1>2d.composite.image.source-atop</h1>
<p class="desc"></p>


<script>
var t = async_test("");
t.step(function() {

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


ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'source-atop';
var promise = new Promise(function(resolve, reject) {
    var xhr = new XMLHttpRequest();
    xhr.open("GET", '/images/yellow75.png');
    xhr.responseType = 'blob';
    xhr.send();
    xhr.onload = function() {
        resolve(xhr.response);
    };
});
promise.then(function(response) {
    ctx.drawImage(response, 0, 0);
    _assertPixelApprox(offscreenCanvas, 50,25, 191,255,64,128, "50,25", "191,255,64,128", 5);
});

t.done();

});
</script>
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