1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
<!DOCTYPE html>
<!-- https://bugzil.la/1330375 -->
<meta charset="utf-8">
<title>Test for Bug 1330375</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest.css"/>
<body>
<div id="content">
<table>
<tbody>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
<tr><td>lorem ipsum</td><td>dolor sit</td><td>amet</td><td>consectetur adipsicing</td><td>elit.</td></tr>
</tbody>
</table>
</div>
</body>
<script>
"use strict";
const gUtils = SpecialPowers.getDOMWindowUtils(window);
function flush_layout(element) {
(element || document.documentElement).offsetHeight;
}
SimpleTest.waitForExplicitFinish();
window.onload = function() {
flush_layout(document.getElementById("content"));
let before = {
framesConstructed: gUtils.framesConstructed,
framesReflowed: gUtils.framesReflowed,
};
// Begin test
let rows = document.getElementsByTagName("tr");
for (var r = 0; r < rows.length; r++) {
let row = rows[r];
row.innerText;
// Cause potential invalidation of layout:
row.style.display = "none";
}
is(gUtils.framesConstructed, before.framesConstructed, "Frames constructed should be 0");
is(gUtils.framesReflowed, before.framesReflowed, "Frames reflowed should be 0");
SimpleTest.finish();
}
</script>
|
