Content - fc52d1094fd66bc34be6fbb3156ca12e1ebd34e8 - 63b2314/offscreen-canvas/compositing/2d.composite.uncovered.nocontext.source-in.html

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Tip revision: 1503470039390008dc011a55ce82f41aa52fa8aa authored by Mikhail Pozdnyakov on 16 March 2018, 12:55:10 UTC
[Sensor] Add feature detection

Tip revision: 1503470

2d.composite.uncovered.nocontext.source-in.html

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

<h1>2d.composite.uncovered.nocontext.source-in</h1>
<p class="desc">drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.</p>


<script>
var t = async_test("drawImage() of a canvas with no context draws pixels 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, 255, 0.5)';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'source-in';
var offscreenCanvas2 = new OffscreenCanvas(100, 50);
ctx.drawImage(offscreenCanvas2, 0, 0);
_assertPixelApprox(offscreenCanvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);

t.done();

});
</script>

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