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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>Canvas test: 2d.imageData.create2.initial</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
<body class="show_output">

<h1>2d.imageData.create2.initial</h1>
<p class="desc">createImageData(sw, sh) returns transparent black data of the right size</p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

<ul id="d"></ul>
<script>
var t = async_test("createImageData(sw, sh) returns transparent black data of the right size");
_addTest(function(canvas, ctx) {

  var imgdata = ctx.createImageData(10, 20);
  _assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
  _assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
  _assert(imgdata.width > 0, "imgdata.width > 0");
  var isTransparentBlack = true;
  for (var i = 0; i < imgdata.data.length; ++i)
      if (imgdata.data[i] !== 0)
          isTransparentBlack = false;
  _assert(isTransparentBlack, "isTransparentBlack");

});
</script>