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<p>Test for <a href="http://bugs.webkit.org/show_bug.cgi?id=41913">bug 41913</a>:
XPath substring function does not correctly handle non-positive values for the position argument</p>
<div id="console"></div>

<script>
    shouldBe("document.evaluate(\"substring('abcde', 0)\", document, null, XPathResult.STRING_TYPE, null).stringValue", "'abcde'");
    shouldBe("document.evaluate(\"substring('abcde', -2)\", document, null, XPathResult.STRING_TYPE, null).stringValue", "'abcde'");
    shouldBe("document.evaluate(\"substring('abcde', 0, 5)\", document, null, XPathResult.STRING_TYPE, null).stringValue", "'abcd'");
    shouldBe("document.evaluate(\"substring('abcde', -2, 5)\", document, null, XPathResult.STRING_TYPE, null).stringValue", "'ab'");

</script>
<script src="../../resources/js-test-post.js"></script>
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