testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.pattern.paint.norepeat.basic.html

   1 <!DOCTYPE html>
   2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
   3 <title>OffscreenCanvas test: 2d.pattern.paint.norepeat.basic</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.pattern.paint.norepeat.basic</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 promise = new Promise(function(resolve, reject) {
  26     var xhr = new XMLHttpRequest();
  27     xhr.open("GET", '/images/green.png');
  28     xhr.responseType = 'blob';
  29     xhr.send();
  30     xhr.onload = function() {
  31         resolve(xhr.response);
  32     };
  33 });
  34 promise.then(function(response) {
  35     createImageBitmap(response).then(bitmap => {
  36         var pattern = ctx.createPattern(bitmap, 'no-repeat');
  37         ctx.fillStyle = pattern;
  38         ctx.fillRect(0, 0, 100, 50);
  39         _assertPixel(canvas, 1,1, 0,255,0,255);
  40         _assertPixel(canvas, 98,1, 0,255,0,255);
  41         _assertPixel(canvas, 1,48, 0,255,0,255);
  42         _assertPixel(canvas, 98,48, 0,255,0,255);
  43     }, t_fail);
  44 }).then(t_pass, t_fail);
  45
  46 });
  47 </script>