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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=666041
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Bug 666041</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="application/javascript" 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;version=1.7">
+"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>.
+ // Source: http://www.w3.org/TR/CSS21/syndata.html#value-def-integer
+ // (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>
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