mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 09:05:45 +00:00
39 lines
1.1 KiB
HTML
39 lines
1.1 KiB
HTML
<!DOCTYPE HTML>
|
|
<html>
|
|
<!--
|
|
https://bugzilla.mozilla.org/show_bug.cgi?id=587106
|
|
-->
|
|
<head>
|
|
<title>Test for Bug 587106</title>
|
|
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
|
|
</head>
|
|
<body>
|
|
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=587106">Mozilla Bug 587106</a>
|
|
<p id="display"><canvas id="c"><canvas></p>
|
|
<div id="content" style="display: none">
|
|
|
|
</div>
|
|
<pre id="test">
|
|
<script type="application/javascript">
|
|
|
|
/** Test for Bug 587106 **/
|
|
var ctx=document.getElementById('c').getContext('2d');
|
|
for (var i = 0; i < 100; ++i) {
|
|
// Skip things that will give different alpha values depending on weird
|
|
// rounding stuff.
|
|
var tentativeAlpha = i / 100 * 255;
|
|
if (Math.abs(tentativeAlpha.toFixed(1) - tentativeAlpha.toFixed(0)) == 0.5) {
|
|
// Skip this one, please!
|
|
continue;
|
|
}
|
|
ctx.strokeStyle = 'rgba(0, 0, 0, ' + (i/100) + ')';
|
|
is(ctx.strokeStyle, 'rgba(0, 0, 0, ' + (i/100) + ')',
|
|
'strokeStyle should match for opacity='+(i/100));
|
|
}
|
|
|
|
</script>
|
|
</pre>
|
|
</body>
|
|
</html>
|