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<!DOCTYPE HTML>
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- License, v. 2.0. If a copy of the MPL was not distributed with this
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<html>
<head>
<title>Test for Author style sheet aspects of CSS cascading</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<style type="text/css">
</style>
</head>
<body id="thebody">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a>
<div class="content_class" id="content" style="position:relative"></div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Author style sheet aspects of CSS cascading **/
var style_element = document.createElement("style");
var style_contents = document.createTextNode("");
style_element.appendChild(style_contents);
document.getElementsByTagName("head")[0].appendChild(style_element);
var div = document.getElementById("content");
var cs = window.getComputedStyle(div);
var zindex = 0;
/**
* Given the selectors |sel1| and |sel2|, in that order (the "order"
* aspect of the cascade), with declarations that are !important if
* |imp1|/|imp2| are true, assert that the one that wins in the
* cascading order is given by |winning| (which must be either 1 or 2).
*/
function do_test(sel1, imp1, sel2, imp2, winning) {
var ind1 = ++zindex;
var ind2 = ++zindex;
style_contents.data =
sel1 + " { z-index: " + ind1 + (imp1 ? "!important" :"") + " } " +
sel2 + " { z-index: " + ind2 + (imp2 ? "!important" :"") + " } ";
var result = cs.zIndex;
is(result, String((winning == 1) ? ind1 : ind2),
"cascading of " + style_contents.data);
}
// Test order, and order combined with !important
do_test("div", false, "div", false, 2);
do_test("div", false, "div", true, 2);
do_test("div", true, "div", false, 1);
do_test("div", true, "div", true, 2);
// Test specificity on a single element
do_test("div", false, "div.content_class", false, 2);
do_test("div.content_class", false, "div", false, 1);
// Test specificity across elements
do_test("body#thebody div", false, "body div.content_class", false, 1);
do_test("body div.content_class", false, "body#thebody div", false, 2);
// Test specificity combined with !important
do_test("div.content_class", false, "div", false, 1);
do_test("div.content_class", true, "div", false, 1);
do_test("div.content_class", false, "div", true, 2);
do_test("div.content_class", true, "div", true, 1);
function do_test_greater(sel1, sel2) {
do_test(sel1, false, sel2, false, 1);
do_test(sel2, false, sel1, false, 2);
}
function do_test_equal(sel1, sel2) {
do_test(sel1, false, sel2, false, 2);
do_test(sel2, false, sel1, false, 2);
}
// Test specificity of contents of :not()
do_test_equal("div.content_class", "div:not(.wrong_class)");
do_test_greater("div.content_class.content_class", "div.content_class");
do_test_greater("div.content_class", "div");
do_test_greater("div:not(.wrong_class)", "div");
do_test_greater("div:not(.wrong_class):not(.wrong_class)",
"div:not(.wrong_class)");
</script>
</pre>
</body>
</html>