mozilla-central/layout/style/test/test_flexbox_order_abspos.html

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Test Info: Errors

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1345873</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/WindowSnapshot.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style type="text/css">
div.ref {
display: none;
height: 30px;
}
refA, refB, refC {
display: block;
float: left;
}
div#a, refA {
background: lightgreen;
width: 20px;
height: 30px;
}
div#b, refB {
background: orange;
width: 30px;
height: 30px;
}
div#c, refC {
background: blue;
width: 50px;
height: 30px;
}
div#flexContainer {
display: flex;
width: 100px;
height: 30px;
}
div#flexContainerParent {
display: none;
}
.abs {
position: absolute !important;
width: 15px !important;
height: 15px !important;
}
</style>
</head>
<body>
<div id="display">
<!-- Reference cases (display:none; only shown during initRefSnapshots) -->
<div id="references">
<div class="ref" id="abc"><refA></refA><refB></refB><refC></refC></div>
<div class="ref" id="Abc">
<refA class="abs"></refA><refB></refB><refC></refC></div>
<div class="ref" id="Bac">
<refB class="abs"></refB><refA></refA><refC></refC></div>
<div class="ref" id="Bca">
<refB class="abs"></refB><refC></refC><refA></refA></div>
<div class="ref" id="Cab">
<refC class="abs"></refC><refA></refA><refB></refB></div>
<div class="ref" id="ABc">
<refA class="abs"></refA><refB class="abs"></refB><refC></refC></div>
<div class="ref" id="ACb">
<refA class="abs"></refA><refC class="abs"></refC><refB></refB></div>
<div class="ref" id="BCa">
<refB class="abs"></refB><refC class="abs"></refC><refA></refA></div>
<div class="ref" id="ABC">
<refA class="abs"></refA><refB class="abs"></refB><refC class="abs"></refC></div>
</div>
<div id="flexContainerParent">
<!-- The flex container that we'll be testing
(its parent is display:none initially) -->
<div id="flexContainer">
<div id="a"></div>
<div id="b"></div>
<div id="c"></div>
</div>
</div>
</div>
<pre id="test">
<script type="application/javascript">
"use strict";
/** Test for Bug 1345873 **/
/* This testcase ensures that we honor the "order" property when ordering
* flex items within a flex container.
*
* Note: The items in this testcase don't overlap, so this testcase does _not_
* test paint ordering. It only tests horizontal ordering in a flex container.
*/
// DATA
// ----
// This will store snapshots of our reference divs
let gRefSnapshots = {};
// These are the sets of 'order' values that we'll test.
// * The first three values in each array are the 'order' values that we'll
// assign to elements a, b, and c (respectively).
// * The next value is a string containing the concatenated IDs of any
// elements that should be absolutely positioned.
// * The final value in each array is the ID of the expected reference
// rendering. (By convention, in those IDs, capital = abspos)
var gOrderTestcases = [
// Just one child is abspos:
[ 1, 2, 3, "a", "Abc"],
[ 1, 2, 3, "b", "Bac"],
[ 1, 2, 3, "c", "Cab"],
[ 2, 3, 1, "b", "Bca"],
[ 3, 1, 1, "b", "Bca"],
// Two children are abspos:
// (Note: "order" doesn't influence position or paint order for abspos
// children - only for (in-flow) flex items.)
[ 1, 2, 3, "ab", "ABc"],
[ 2, 1, 3, "ab", "ABc"],
[ 1, 2, 3, "ac", "ACb"],
[ 3, 2, 1, "ac", "ACb"],
[ 3, 2, 1, "bc", "BCa"],
// All three children are abspos:
// (Rendering always the same regardless of "order" values)
[ 1, 2, 3, "abc", "ABC"],
[ 3, 1, 2, "abc", "ABC"],
[ 3, 2, 1, "abc", "ABC"],
];
// FUNCTIONS
// ---------
function initRefSnapshots() {
let refIds = ["abc",
"Abc", "Bac", "Bca", "Cab",
"ABc", "ACb", "BCa",
"ABC"];
for (let id of refIds) {
let elem = document.getElementById(id);
elem.style.display = "block";
gRefSnapshots[id] = snapshotWindow(window, false);
elem.style.display = "";
}
}
function complainIfSnapshotsDiffer(aSnap1, aSnap2, aMsg) {
let compareResult = compareSnapshots(aSnap1, aSnap2, true);
ok(compareResult[0],
"flex container rendering should match expected (" + aMsg +")");
if (!compareResult[0]) {
todo(false, "TESTCASE: " + compareResult[1]);
todo(false, "REFERENCE: "+ compareResult[2]);
}
}
function runOrderTestcase(aOrderTestcase) {
// Sanity-check
ok(Array.isArray(aOrderTestcase), "expecting testcase to be an array");
is(aOrderTestcase.length, 5, "expecting testcase to have 5 elements");
document.getElementById("a").style.order = aOrderTestcase[0];
document.getElementById("b").style.order = aOrderTestcase[1];
document.getElementById("c").style.order = aOrderTestcase[2];
let idsToMakeAbspos = aOrderTestcase[3].split("");
for (let absPosId of idsToMakeAbspos) {
document.getElementById(absPosId).classList.add("abs");
}
let snapshot = snapshotWindow(window, false);
complainIfSnapshotsDiffer(snapshot, gRefSnapshots[aOrderTestcase[4]],
aOrderTestcase);
// Clean up
for (let id of ["a", "b", "c"]) {
document.getElementById(id).style.order = "";
document.getElementById(id).classList.remove("abs");
}
}
// Main Function
function main() {
initRefSnapshots();
// un-hide the flex container's parent
let flexContainerParent = document.getElementById("flexContainerParent");
flexContainerParent.style.display = "block";
// Initial sanity-check: should be in expected document order
let initialSnapshot = snapshotWindow(window, false);
complainIfSnapshotsDiffer(initialSnapshot, gRefSnapshots.abc,
"initial flex container rendering, " +
"no 'order' value yet");
// OK, now we run our tests
gOrderTestcases.forEach(runOrderTestcase);
// Re-hide the flex container at the end
flexContainerParent.style.display = "";
}
main();
</script>
</pre>
</body>
</html>