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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for Bug 229915</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<style type="text/css">
p { color: black; background: transparent; }
p.prev + p { color: green; }
p.prev ~ p { background: white; }
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=229915">Mozilla Bug 229915</a>
<div id="display">
<div>
<p id="toinsertbefore">After testing, this should turn green.</p>
</div>
<div>
<p id="toreplace">To be replaced.</p>
<p id="replacecolor">After testing, this should turn green.</p>
</div>
<div>
<p class="prev">Previous paragraph.</p>
<p id="toremove">To be removed.</p>
<p id="removecolor">After testing, this should turn green.</p>
</div>
</div>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 229915 **/
const GREEN = "rgb(0, 128, 0)";
const BLACK = "rgb(0, 0, 0)";
const TRANSPARENT = "rgba(0, 0, 0, 0)";
const WHITE = "rgb(255, 255, 255)";
function make_prev() {
var result = document.createElement("p");
result.setAttribute("class", "prev");
var t = document.createTextNode("Dynamically created previous paragraph.");
result.appendChild(t);
return result;
}
function color(id) {
return getComputedStyle(document.getElementById(id), "").color;
}
function bg(id) {
return getComputedStyle(document.getElementById(id), "").backgroundColor;
}
var node;
// test insert
is(color("toinsertbefore"), BLACK, "initial state (insertion test)");
is(bg("toinsertbefore"), TRANSPARENT, "initial state (insertion test)");
node = document.getElementById("toinsertbefore");
node.parentNode.insertBefore(make_prev(), node);
is(color("toinsertbefore"), GREEN, "inserting should turn node green");
is(bg("toinsertbefore"), WHITE, "inserting should turn background white");
// test replace
is(color("replacecolor"), BLACK, "initial state (replacement test)");
is(bg("replacecolor"), TRANSPARENT, "initial state (replacement test)");
node = document.getElementById("toreplace");
node.parentNode.replaceChild(make_prev(), node);
is(color("replacecolor"), GREEN, "replacing should turn node green");
is(bg("replacecolor"), WHITE, "replacing should turn background white");
// test remove
is(color("removecolor"), BLACK, "initial state (removal test)");
is(bg("removecolor"), WHITE, "initial state (removal test; no change)");
node = document.getElementById("toremove");
node.remove();
is(color("removecolor"), GREEN, "removing should turn node green");
is(bg("removecolor"), WHITE, "removing should leave background");
</script>
</pre>
</body>
</html>