iron-dropdown-scroll-manager.html
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<!doctype html>
<!--
@license
Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<html>
<head>
<meta charset="UTF-8">
<title>iron-dropdown-scroll-manager tests</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
<script src="../../web-component-tester/browser.js"></script>
<script src="../../test-fixture/test-fixture-mocha.js"></script>
<script src="../../iron-test-helpers/mock-interactions.js"></script>
<link rel="import" href="../iron-dropdown-scroll-manager.html">
<link rel="import" href="../../test-fixture/test-fixture.html">
</head>
<body>
<test-fixture id="DOMSubtree">
<template>
<div id="Parent">
<div id="ChildOne">
<div id="GrandchildOne"></div>
</div>
<div id="ChildTwo">
<div id="GrandchildTwo"></div>
</div>
</div>
</template>
</test-fixture>
<script>
suite('IronDropdownScrollManager', function() {
var parent;
var childOne;
var childTwo;
var grandchildOne;
var grandchildTwo;
var ancestor;
setup(function() {
parent = fixture('DOMSubtree');
childOne = parent.querySelector('#ChildOne');
childTwo = parent.querySelector('#ChildTwo');
grandChildOne = parent.querySelector('#GrandchildOne');
grandChildTwo = parent.querySelector('#GrandchildTwo');
ancestor = document.body;
});
suite('contraining scroll in the DOM', function() {
setup(function() {
Polymer.IronDropdownScrollManager.pushScrollLock(childOne);
});
teardown(function() {
Polymer.IronDropdownScrollManager.removeScrollLock(childOne);
});
test('recognizes sibling as locked', function() {
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(childTwo))
.to.be.equal(true);
});
test('recognizes neice as locked', function() {
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(grandChildTwo))
.to.be.equal(true);
});
test('recognizes parent as locked', function() {
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(parent))
.to.be.equal(true);
});
test('recognizes ancestor as locked', function() {
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(ancestor))
.to.be.equal(true);
});
test('recognizes locking child as unlocked', function() {
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(childOne))
.to.be.equal(false);
});
test('recognizes descendant of locking child as unlocked', function() {
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(grandChildOne))
.to.be.equal(false);
});
test('unlocks locked elements when there are no locking elements', function() {
Polymer.IronDropdownScrollManager.removeScrollLock(childOne);
expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(parent))
.to.be.equal(false);
});
});
});
</script>
</body>
</html>