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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>Canvas test: 2d.state.saverestore.globalAlpha</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
<body class="show_output">
<h1>2d.state.saverestore.globalAlpha</h1>
<p class="desc">save()/restore() works for globalAlpha</p>
<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<ul id="d"></ul>
<script>
var t = async_test("save()/restore() works for globalAlpha");
_addTest(function(canvas, ctx) {
// Test that restore() undoes any modifications
var old = ctx.globalAlpha;
ctx.save();
ctx.globalAlpha = 0.5;
ctx.restore();
_assertSame(ctx.globalAlpha, old, "ctx.globalAlpha", "old");
// Also test that save() doesn't modify the values
ctx.globalAlpha = 0.5;
old = ctx.globalAlpha;
// we're not interested in failures caused by get(set(x)) != x (e.g.
// from rounding), so compare against 'old' instead of against 0.5
ctx.save();
_assertSame(ctx.globalAlpha, old, "ctx.globalAlpha", "old");
ctx.restore();
});
</script>
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