Source code

Revision control

Other Tools

Test Info:

<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.gradient.interpolate.overlap</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<h1>2d.gradient.interpolate.overlap</h1>
<p class="desc"></p>
<script>
var t = async_test("");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
throw reason;
});
t.step(function() {
var canvas = new OffscreenCanvas(100, 50);
var ctx = canvas.getContext('2d');
canvas.width = 200;
var g = ctx.createLinearGradient(0, 0, 200, 0);
g.addColorStop(0, '#f00');
g.addColorStop(0, '#ff0');
g.addColorStop(0.25, '#00f');
g.addColorStop(0.25, '#0f0');
g.addColorStop(0.25, '#0f0');
g.addColorStop(0.25, '#0f0');
g.addColorStop(0.25, '#ff0');
g.addColorStop(0.5, '#00f');
g.addColorStop(0.5, '#0f0');
g.addColorStop(0.75, '#00f');
g.addColorStop(0.75, '#f00');
g.addColorStop(0.75, '#ff0');
g.addColorStop(0.5, '#0f0');
g.addColorStop(0.5, '#0f0');
g.addColorStop(0.5, '#ff0');
g.addColorStop(1, '#00f');
ctx.fillStyle = g;
ctx.fillRect(0, 0, 200, 50);
_assertPixelApprox(canvas, 49,25, 0,0,255,255, "49,25", "0,0,255,255", 16);
_assertPixelApprox(canvas, 51,25, 255,255,0,255, "51,25", "255,255,0,255", 16);
_assertPixelApprox(canvas, 99,25, 0,0,255,255, "99,25", "0,0,255,255", 16);
_assertPixelApprox(canvas, 101,25, 255,255,0,255, "101,25", "255,255,0,255", 16);
_assertPixelApprox(canvas, 149,25, 0,0,255,255, "149,25", "0,0,255,255", 16);
_assertPixelApprox(canvas, 151,25, 255,255,0,255, "151,25", "255,255,0,255", 16);
t.done();
});
</script>