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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 666041</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;
}
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=666041">Mozilla Bug 666041</a>
<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="acb"><refA></refA><refC></refC><refB></refB></div>
<div class="ref" id="bac"><refB></refB><refA></refA><refC></refC></div>
<div class="ref" id="bca"><refB></refB><refC></refC><refA></refA></div>
<div class="ref" id="cab"><refC></refC><refA></refA><refB></refB></div>
<div class="ref" id="cba"><refC></refC><refB></refB><refA></refA></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 666041 **/
/* 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 final value in each
// array is the ID of the expected reference rendering.
let gOrderTestcases = [
// The 6 basic permutations:
[ 1, 2, 3, "abc"],
[ 1, 3, 2, "acb"],
[ 2, 1, 3, "bac"],
[ 2, 3, 1, "cab"],
[ 3, 1, 2, "bca"],
[ 3, 2, 1, "cba"],
// Test negative values
[ 1, -5, -2, "bca"],
[ -50, 0, -2, "acb"],
// Non-integers should be ignored.
// (So, they'll leave their div with the initial 'order' value, which is 0.)
[ 1, 1.5, 2, "bac"],
[ 2.5, 3.4, 1, "abc"],
[ 0.5, 1, 1.5, "acb"],
// Decimal values that happen to be equal to integers (e.g. "3.0") are still
// <numbers>, and are _not_ <integers>.
// (So, they'll leave their div with the initial 'order' value, which is 0.)
// (NOTE: We have to use quotes around "3.0" and "2.0" to be sure JS doesn't
// coerce them into integers before we get a chance to set them in CSS.)
[ "3.0", "2.0", "1.0", "abc"],
[ 3, "2.0", 1, "bca"],
];
// FUNCTIONS
// ---------
function initRefSnapshots() {
let refIds = ["abc", "acb", "bac", "bca", "cab", "cba"];
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, 4, "expecting testcase to have 4 elements");
document.getElementById("a").style.order = aOrderTestcase[0];
document.getElementById("b").style.order = aOrderTestcase[1];
document.getElementById("c").style.order = aOrderTestcase[2];
let snapshot = snapshotWindow(window, false);
complainIfSnapshotsDiffer(snapshot, gRefSnapshots[aOrderTestcase[3]],
aOrderTestcase);
// Clean up
for (let id of ["a", "b", "c"]) {
document.getElementById(id).style.order = "";
}
}
// 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>