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<title>Canvas test: 2d.composite.uncovered.nocontext.source-out</title>
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<h1>2d.composite.uncovered.nocontext.source-out</h1>
<p class="desc">drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.</p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<p class="output expectedtext">Expected output:<p><img src="2d.composite.uncovered.nocontext.source-out.png" class="output expected" id="expected" alt="">
<ul id="d"></ul>
<script>
var t = async_test("drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.");
_addTest(function(canvas, ctx) {

  ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
  ctx.fillRect(0, 0, 100, 50);
  ctx.globalCompositeOperation = 'source-out';
  var canvas2 = document.createElement('canvas');
  ctx.drawImage(canvas2, 0, 0);
  _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5);

});
</script>

