testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.radial.cone.front.html

   1 <!DOCTYPE html>
   2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
   3 <title>OffscreenCanvas test: 2d.gradient.radial.cone.front</title>
   4 <script src="/resources/testharness.js"></script>
   5 <script src="/resources/testharnessreport.js"></script>
   6 <script src="/html/canvas/resources/canvas-tests.js"></script>
   7
   8 <h1>2d.gradient.radial.cone.front</h1>
   9 <p class="desc"></p>
  10
  11
  12 <script>
  13 var t = async_test("");
  14 var t_pass = t.done.bind(t);
  15 var t_fail = t.step_func(function(reason) {
  16     throw reason;
  17 });
  18 t.step(function() {
  19
  20 var canvas = new OffscreenCanvas(100, 50);
  21 var ctx = canvas.getContext('2d');
  22
  23 ctx.fillStyle = '#f00';
  24 ctx.fillRect(0, 0, 100, 50);
  25 var g = ctx.createRadialGradient(311, 25, 10, 210, 25, 100);
  26 g.addColorStop(0, '#f00');
  27 g.addColorStop(1, '#0f0');
  28 ctx.fillStyle = g;
  29 ctx.fillRect(0, 0, 100, 50);
  30 _assertPixel(canvas, 1,1, 0,255,0,255);
  31 _assertPixel(canvas, 50,1, 0,255,0,255);
  32 _assertPixel(canvas, 98,1, 0,255,0,255);
  33 _assertPixel(canvas, 1,25, 0,255,0,255);
  34 _assertPixel(canvas, 50,25, 0,255,0,255);
  35 _assertPixel(canvas, 98,25, 0,255,0,255);
  36 _assertPixel(canvas, 1,48, 0,255,0,255);
  37 _assertPixel(canvas, 50,48, 0,255,0,255);
  38 _assertPixel(canvas, 98,48, 0,255,0,255);
  39 t.done();
  40
  41 });
  42 </script>