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[Gecko Bug 2009082] Add web-platform reftests for appending element into containers that have pseudo-elements. #57076

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Merged
moz-wptsync-bot merged 1 commit into from
Jan 9, 2026
Merged

[Gecko Bug 2009082] Add web-platform reftests for appending element into containers that have pseudo-elements. #57076

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10 changes: 10 additions & 0 deletions css/css-multicol/multicol-dynamic-add-002-ref.html
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<!DOCTYPE html>
<title>CSS Multi-column Layout Reference: Flex container in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">

<style>
:root { columns: 0px }
</style>

<q style="display: flex">f</q>
31 changes: 31 additions & 0 deletions css/css-multicol/multicol-dynamic-add-002.html
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<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS Multi-column Layout Test: Change textContent on flex container in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-multicol-1/">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1645714">
<link rel="match" href="multicol-dynamic-add-002-ref.html">
<meta name="assert" content="This test checks that dynamically changing textContent on a flex container in a multi-column context renders correctly.">

<script>
function runTest() {
document.body.offsetHeight;

a.textContent = "f";

document.documentElement.removeAttribute("class");
}
</script>

<style>
:root { columns: 0px }
</style>

<body onload="runTest();">
<q id="a" style="display: flex">
<small>x</label>
<li>
</body>
</html>
30 changes: 30 additions & 0 deletions css/css-multicol/multicol-dynamic-add-003-ref.html
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<!DOCTYPE html>
<title>CSS Multi-column Layout Reference: Grid with pseudo-elements in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">

<style>
.columns {
columns: 2;
column-fill: auto;
width: 100px;
height: 10px;
}
#grid {
display: grid;
grid: 20px 20px / 40px 40px;
}
#grid::before, #grid::after {
content: "";
grid-row: 1 / 3;
}
nav {
grid-row: 1 / 3;
}
</style>

<div class="columns">
<div id="grid">
<nav>text</nav>
</div>
</div>
51 changes: 51 additions & 0 deletions css/css-multicol/multicol-dynamic-add-003.html
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<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS Multi-column Layout Test: Append element to grid with pseudo-elements in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-multicol-1/">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1645714">
<link rel="match" href="multicol-dynamic-add-003-ref.html">
<meta name="assert" content="This test checks that dynamically appending an element to a grid container with ::before and ::after pseudo-elements in a multi-column context renders correctly.">

<script>
function runTest() {
document.body.offsetHeight;

var nav = document.createElement("nav");
nav.append("text");

var grid = document.getElementById("grid");
grid.append(nav);

document.documentElement.removeAttribute("class");
}
</script>

<style>
.columns {
columns: 2;
column-fill: auto;
width: 100px;
height: 10px;
}
#grid {
display: grid;
grid: 20px 20px / 40px 40px;
}
#grid::before, #grid::after {
content: "";
grid-row: 1 / 3;
}
nav {
grid-row: 1 / 3;
}
</style>

<body onload="runTest();">
<div class="columns">
<div id="grid"></div>
</div>
</body>
</html>
28 changes: 28 additions & 0 deletions css/css-multicol/multicol-dynamic-add-004-ref.html
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<!DOCTYPE html>
<title>CSS Multi-column Layout Reference: Block with floating pseudo-elements in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">

<style>
.columns {
columns: 2;
column-fill: auto;
width: 100px;
height: 10px;
}
#container::before, #container::after {
float: left;
content: "";
width: 10px;
height: 20px;
}
nav {
float: left;
}
</style>

<div class="columns">
<div id="container">
<nav>text</nav>
</div>
</div>
49 changes: 49 additions & 0 deletions css/css-multicol/multicol-dynamic-add-004.html
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<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS Multi-column Layout Test: Append float element to block with floating pseudo-elements in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:[email protected]">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-multicol-1/">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1645714">
<link rel="match" href="multicol-dynamic-add-004-ref.html">
<meta name="assert" content="This test checks that dynamically appending a float element to a block container with floating ::before and ::after pseudo-elements in a multi-column context renders correctly.">

<script>
function runTest() {
document.body.offsetHeight;

var nav = document.createElement("nav");
nav.append("text");

var container = document.getElementById("container");
container.append(nav);

document.documentElement.removeAttribute("class");
}
</script>

<style>
.columns {
columns: 2;
column-fill: auto;
width: 100px;
height: 10px;
}
#container::before, #container::after {
float: left;
content: "";
width: 10px;
height: 20px;
}
nav {
float: left;
}
</style>

<body onload="runTest();">
<div class="columns">
<div id="container"></div>
</div>
</body>
</html>