1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/test_2d.clearRect.image.offscreen.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,42 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<head>
1.7 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.8 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.9 +</head>
1.10 +<body onload="doTest()">
1.11 +<p id="display">
1.12 + <canvas id="c" width="1" height="1"></canvas>
1.13 + <img id="img" src="image_green-1x1.png">
1.14 +</p>
1.15 +<div id="content" style="display: none">
1.16 +
1.17 +</div>
1.18 +<pre id="test">
1.19 +<script type="application/javascript">
1.20 +
1.21 +var c = document.getElementById("c");
1.22 +var ctx = c.getContext("2d");
1.23 +var img = document.getElementById("img");
1.24 +
1.25 +SimpleTest.waitForExplicitFinish();
1.26 +
1.27 +function doTest() {
1.28 + ctx.fillStyle = "red";
1.29 + ctx.fillRect(0, 0, 1, 1);
1.30 + ctx.drawImage(img, -1, 0);
1.31 + ctx.clearRect(0, 0, 1, 1);
1.32 +
1.33 + var data = ctx.getImageData(0, 0, 1, 1).data;
1.34 + is(data[0], 0, "Red channel should be 0");
1.35 + is(data[1], 0, "Green channel should be 0");
1.36 + is(data[2], 0, "Blue channel should be 0")
1.37 + is(data[3], 0, "Alpha channel should be 0");
1.38 +
1.39 + SimpleTest.finish();
1.40 +}
1.41 +
1.42 +</script>
1.43 +</pre>
1.44 +</body>
1.45 +</html>
