testing/web-platform/tests/html/canvas/element/compositing/2d.composite.uncovered.pattern.source-in.html

   1 <!DOCTYPE html>
   2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
   3 <title>Canvas test: 2d.composite.uncovered.pattern.source-in</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.composite.uncovered.pattern.source-in</h1>
  11 <p class="desc">Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.</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="2d.composite.uncovered.pattern.source-in.png" class="output expected" id="expected" alt="">
  17 <ul id="d"></ul>
  18 <script>
  19 var t = async_test("Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.");
  20 _addTest(function(canvas, ctx) {
  21
  22
  23 ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
  24 ctx.fillRect(0, 0, 100, 50);
  25 ctx.globalCompositeOperation = 'source-in';
  26 ctx.fillStyle = ctx.createPattern(document.getElementById('yellow.png'), 'no-repeat');
  27 ctx.fillRect(0, 50, 100, 50);
  28 _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);
  29
  30
  31 });
  32 </script>
  33 <img src="/images/yellow.png" id="yellow.png" class="resource">
  34