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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: e940b3ad8382b2a2d7f0faeb0385ed53eb15283b authored by Frédéric Wang on 11 September 2018, 08:14:16 UTC
Use document.scrollingElement to access scroll properties of the viewport
Tip revision: e940b3a
2d.gradient.radial.cone.shape1.html 
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.gradient.radial.cone.shape1</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>

<h1>2d.gradient.radial.cone.shape1</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 tol = 1; // tolerance to avoid antialiasing artifacts
ctx.fillStyle = '#0f0';
ctx.fillRect(0, 0, 100, 50);
ctx.fillStyle = '#f00';
ctx.beginPath();
ctx.moveTo(30+tol, 40);
ctx.lineTo(110, -20+tol);
ctx.lineTo(110, 100-tol);
ctx.fill();
var g = ctx.createRadialGradient(30+10*5/2, 40, 10*3/2, 30+10*15/4, 40, 10*9/4);
g.addColorStop(0, '#0f0');
g.addColorStop(1, '#0f0');
ctx.fillStyle = g;
ctx.fillRect(0, 0, 100, 50);
_assertPixel(offscreenCanvas, 1,1, 0,255,0,255, "1,1", "0,255,0,255");
_assertPixel(offscreenCanvas, 50,1, 0,255,0,255, "50,1", "0,255,0,255");
_assertPixel(offscreenCanvas, 98,1, 0,255,0,255, "98,1", "0,255,0,255");
_assertPixel(offscreenCanvas, 1,25, 0,255,0,255, "1,25", "0,255,0,255");
_assertPixel(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255");
_assertPixel(offscreenCanvas, 98,25, 0,255,0,255, "98,25", "0,255,0,255");
_assertPixel(offscreenCanvas, 1,48, 0,255,0,255, "1,48", "0,255,0,255");
_assertPixel(offscreenCanvas, 50,48, 0,255,0,255, "50,48", "0,255,0,255");
_assertPixel(offscreenCanvas, 98,48, 0,255,0,255, "98,48", "0,255,0,255");

t.done();

});
</script>
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