1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/base/tests/test_bug469170.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,49 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=469170
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 469170</title>
1.11 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.13 +</head>
1.14 +<body onload="runTest();">
1.15 +<p><a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=469170">Mozilla Bug 469170</a></p>
1.16 +
1.17 +<iframe id="source" width="50" height="50"
1.18 + src="data:text/html,%3Chtml%3E%3C%2Fhtml%3E"></iframe>
1.19 +
1.20 +<pre id="test">
1.21 +<script type="application/javascript">
1.22 +
1.23 +/** Test for Bug 469170 **/
1.24 +
1.25 +SimpleTest.waitForExplicitFinish();
1.26 +
1.27 +function runTest() {
1.28 + var source = document.getElementById('source').contentWindow;
1.29 + rect = { left: 0, top: 0,
1.30 + width: source.innerWidth, height: source.innerHeight };
1.31 + var canvas = SpecialPowers.snapshotRect(source, rect, "transparent");
1.32 + var context = canvas.getContext("2d");
1.33 +
1.34 + var components = [ "red", "green", "blue", "alpha" ];
1.35 +
1.36 + var data = context.getImageData(0, 0, canvas.width, canvas.height).data;
1.37 + var failed = false;
1.38 + for (var i = 0; i < data.length; i++) {
1.39 + if (data[i] != 0) {
1.40 + is(data[i], 0, "pixel " + Math.floor(i/4) + " " + components[i%4]);
1.41 + failed = true;
1.42 + }
1.43 + }
1.44 + if (!failed) {
1.45 + ok(!failed, "all pixels fully transparent");
1.46 + }
1.47 + SimpleTest.finish();
1.48 +}
1.49 +</script>
1.50 +</pre>
1.51 +</body>
1.52 +</html>
