<title>CSS Test: CSSOM StyleSheet insertRule omitted second argument</title>

<link rel="author" title="Sendil Kumar N" href="mailto:sendilkumarn.opensource@gmail.com">

<link rel="help" href="https://drafts.csswg.org/cssom/">

<link rel="help" href="http://www.w3.org/TR/cssom-1/#the-cssrule-interface">

<meta name="flags" content="dom">

<script src="/resources/testharness.js" type="text/javascript"></script>

<script src="/resources/testharnessreport.js" type="text/javascript"></script>

<style id="styleElement">

/* An initial style rule to test where the new rule is inserted relative to this one */

nosuchelement { color: red; }

</style>

<div id="log"></div>

<script type="text/javascript">

var sheet = document.getElementById("styleElement").sheet;

test(function() {

assert_equals(sheet.cssRules.length, 1);

sheet.insertRule("p { color: green; }");

assert_equals(sheet.cssRules.length, 2);

assert_equals(sheet.cssRules.item(0).cssText, "p { color: green; }");

}, "insertRule with omitted index argument");

test(function() {

assert_equals(sheet.cssRules.length, 2);

sheet.insertRule("p { color: yellow; }", undefined);

assert_equals(sheet.cssRules.length, 3);

assert_equals(sheet.cssRules.item(0).cssText, "p { color: yellow; }");

}, "insertRule with undefined index argument");