Content - 0ccfea9a6ed5de28e690a6cfc8559af92ff0c1f9 - 689d491/offscreen-canvas/compositing/2d.composite.globalAlpha.canvas.html

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Tip revision: 32b86b82958c2f48931274b26840a1a4a45a8857 authored by Adam Rice on 20 March 2018, 12:30:43 UTC
Correctly reject in-progress body methods with AbortError

Tip revision: 32b86b8

2d.composite.globalAlpha.canvas.html

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

<h1>2d.composite.globalAlpha.canvas</h1>
<p class="desc"></p>


<script>
var t = async_test("");
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 = '#f00';
ctx2.fillRect(0, 0, 100, 50);
ctx.fillStyle = '#0f0';
ctx.fillRect(0, 0, 100, 50);
ctx.globalAlpha = 0.01; // avoid any potential alpha=0 optimisations
ctx.drawImage(offscreenCanvas2, 0, 0);
_assertPixelApprox(offscreenCanvas, 50,25, 2,253,0,255, "50,25", "2,253,0,255", 2);

t.done();

});
</script>

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