gecko-dev/dom/html/test/test_bug332246.html

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<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=332246
-->
<head>
<title>Test for Bug 332246 - scrollIntoView(false) doesn't work correctly for inline elements that wrap at multiple lines</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=332246">Mozilla Bug 332246</a>
<p id="display"></p>
<div id="content">
<div id="a1" style="height: 100px; width: 100px; overflow: hidden; outline:1px dotted black;">
<div style="height: 100px"></div>
<a id="a2" href="#" style="display:block; background:yellow; height:200px;">Top</a>
<div style="height: 100px"></div>
</div>
<div id="b1" style="height: 100px; width: 100px; overflow: hidden; outline:1px dotted black;">
<div style="height: 100px"></div>
<div id="b2" href="#" style="border:10px solid black; background:yellow; height:200px;"></div>
<div style="height: 100px"></div>
</div>
<br>
<div id="c1" style="height: 100px; width: 100px; overflow: hidden; position: relative; outline:1px dotted black;">
<div id="c2" style="border: 10px solid black; height: 200px; width: 50px; position: absolute; top: 100px;"></div>
<div style="height: 100px"></div>
</div>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 332246 **/
function isWithFuzz(itIs, itShouldBe, fuzz, description) {
ok(Math.abs(itIs - itShouldBe) <= fuzz, `${description} - expected a value between ${itShouldBe - fuzz} and ${itShouldBe + fuzz}, got ${itIs}`);
}
var a1 = document.getElementById('a1');
var a2 = document.getElementById('a2');
isWithFuzz(a1.scrollHeight, 400, 1, "Wrong a1.scrollHeight");
is(a1.offsetHeight, 100, "Wrong a1.offsetHeight");
a2.scrollIntoView(true);
is(a1.scrollTop, 100, "Wrong scrollTop value after a2.scrollIntoView(true)");
a2.scrollIntoView(false);
is(a1.scrollTop, 200, "Wrong scrollTop value after a2.scrollIntoView(false)");
var b1 = document.getElementById('b1');
var b2 = document.getElementById('b2');
isWithFuzz(b1.scrollHeight, 420, 1, "Wrong b1.scrollHeight");
is(b1.offsetHeight, 100, "Wrong b1.offsetHeight");
b2.scrollIntoView(true);
is(b1.scrollTop, 100, "Wrong scrollTop value after b2.scrollIntoView(true)");
b2.scrollIntoView(false);
is(b1.scrollTop, 220, "Wrong scrollTop value after b2.scrollIntoView(false)");
var c1 = document.getElementById('c1');
var c2 = document.getElementById('c2');
isWithFuzz(c1.scrollHeight, 320, 1, "Wrong c1.scrollHeight");
is(c1.offsetHeight, 100, "Wrong c1.offsetHeight");
c2.scrollIntoView(true);
is(c1.scrollTop, 100, "Wrong scrollTop value after c2.scrollIntoView(true)");
c2.scrollIntoView(false);
isWithFuzz(c1.scrollTop, 220, 1, "Wrong scrollTop value after c2.scrollIntoView(false)");
</script>
</pre>
</body>
</html>