content/canvas/test/test_canvas_strokeStyle_getter.html@6474c204b198
content/canvas/test/test_canvas_strokeStyle_getter.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 <!DOCTYPE HTML>
2 <html>
3 <!--
4 https://bugzilla.mozilla.org/show_bug.cgi?id=587106
5 -->
6 <head>
7 <title>Test for Bug 587106</title>
8 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
10 </head>
11 <body>
12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=587106">Mozilla Bug 587106</a>
13 <p id="display"><canvas id="c"><canvas></p>
14 <div id="content" style="display: none">
16 </div>
17 <pre id="test">
18 <script type="application/javascript">
20 /** Test for Bug 587106 **/
21 var ctx=document.getElementById('c').getContext('2d');
22 for (var i = 0; i < 100; ++i) {
23 // Skip things that will give different alpha values depending on weird
24 // rounding stuff.
25 var tentativeAlpha = i / 100 * 255;
26 if (Math.abs(tentativeAlpha.toFixed(1) - tentativeAlpha.toFixed(0)) == 0.5) {
27 // Skip this one, please!
28 continue;
29 }
30 ctx.strokeStyle = 'rgba(0, 0, 0, ' + (i/100) + ')';
31 is(ctx.strokeStyle, 'rgba(0, 0, 0, ' + (i/100) + ')',
32 'strokeStyle should match for opacity='+(i/100));
33 }
35 </script>
36 </pre>
37 </body>
38 </html>
