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+++ b/testing/web-platform/tests/html/canvas/element/the-canvas-state/2d.state.saverestore.underflow.html
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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.underflow</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.underflow</h1>
+<p class="desc">restore() with an empty stack has no effect</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("restore() with an empty stack has no effect");
+_addTest(function(canvas, ctx) {
+
+ for (var i = 0; i < 16; ++i)
+ ctx.restore();
+ ctx.lineWidth = 0.5;
+ ctx.restore();
+ _assertSame(ctx.lineWidth, 0.5, "ctx.lineWidth", "0.5");
+
+});
+</script>
+