pjs/content/canvas/test/test_context.emptystring.html

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<!DOCTYPE HTML>
<title>Canvas test: context.emptystring - bug 401788</title>
<!-- Testing: getContext with empty string returns null -->
<script src="/MochiKit/packed.js"></script>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<body>
<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<script>
SimpleTest.waitForExplicitFinish();
MochiKit.DOM.addLoadEvent(function () {
var canvas = document.getElementById('c');
var ctx = canvas.getContext('2d');
var _thrown_outer = false;
try {
ok(canvas.getContext("") === null, "canvas.getContext(\"\") === null");
} catch (e) {
_thrown_outer = true;
}
todo(!_thrown_outer, 'should not throw exception');
SimpleTest.finish();
});
</script>