gecko-dev/content/canvas/test/test_2d.state.saverestore.s...

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<!DOCTYPE HTML>
<title>Canvas test: 2d.state.saverestore.shadowOffsetX</title>
<!-- Testing: save()/restore() works for shadowOffsetX -->
<script src="/MochiKit/MochiKit.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');
// Test that restore() undoes any modifications
var old = ctx.shadowOffsetX;
ctx.save();
ctx.shadowOffsetX = 5;
ctx.restore();
ok(ctx.shadowOffsetX === old, "ctx.shadowOffsetX === old");
// Also test that save() doesn't modify the values
ctx.shadowOffsetX = 5;
old = ctx.shadowOffsetX;
// we're not interested in failures caused by get(set(x)) != x (e.g.
// from rounding), so compare against d instead of against 5
ctx.save();
ok(ctx.shadowOffsetX === old, "ctx.shadowOffsetX === old");
ctx.restore();
SimpleTest.finish();
});
</script>