Content - 696c6e6afb4201e298a1af32ecd1abdc93b4a7dd - 2cdf6f2/offscreen-canvas/fill-and-stroke-styles/2d.gradient.interpolate.alpha.html

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Tip revision: b7d06133c8141aa61458623bcc8e1b4c84e0b587 authored by Simon Pieters on 23 June 2018, 21:57:05 UTC
[testharness.js][docs] Support assert_throws without name property

Tip revision: b7d0613

2d.gradient.interpolate.alpha.html

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

<h1>2d.gradient.interpolate.alpha</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 = '#ff0';
ctx.fillRect(0, 0, 100, 50);
var g = ctx.createLinearGradient(0, 0, 100, 0);
g.addColorStop(0, 'rgba(0,0,255, 0)');
g.addColorStop(1, 'rgba(0,0,255, 1)');
ctx.fillStyle = g;
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(offscreenCanvas, 25,25, 191,191,63,255, "25,25", "191,191,63,255", 3);
_assertPixelApprox(offscreenCanvas, 50,25, 127,127,127,255, "50,25", "127,127,127,255", 3);
_assertPixelApprox(offscreenCanvas, 75,25, 63,63,191,255, "75,25", "63,63,191,255", 3);

t.done();

});
</script>

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