testing/web-platform/tests/html/canvas/element/drawing-images-to-the-canvas/2d.drawImage.self.2.html

   1 <!DOCTYPE html>
   2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
   3 <title>Canvas test: 2d.drawImage.self.2</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 <link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
   8 <body class="show_output">
   9
  10 <h1>2d.drawImage.self.2</h1>
  11 <p class="desc"></p>
  12
  13
  14 <p class="output">Actual output:</p>
  15 <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
  16 <p class="output expectedtext">Expected output:<p><img src="/images/green-100x50.png" class="output expected" id="expected" alt="">
  17 <ul id="d"></ul>
  18 <script>
  19 var t = async_test("");
  20 _addTest(function(canvas, ctx) {
  21
  22 ctx.fillStyle = '#0f0';
  23 ctx.fillRect(0, 1, 100, 49);
  24 ctx.fillStyle = '#f00';
  25 ctx.fillRect(0, 0, 100, 1);
  26 ctx.drawImage(canvas, 0, 1);
  27 ctx.fillStyle = '#0f0';
  28 ctx.fillRect(0, 0, 100, 2);
  29
  30 _assertPixelApprox(canvas, 0,0, 0,255,0,255, 2);
  31 _assertPixelApprox(canvas, 99,0, 0,255,0,255, 2);
  32 _assertPixelApprox(canvas, 0,49, 0,255,0,255, 2);
  33 _assertPixelApprox(canvas, 99,49, 0,255,0,255, 2);
  34
  35
  36 });
  37 </script>
  38