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polymer/test/unit/styling-extends.html

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<!doctype html>
<!--
@license
Copyright (c) 2014 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">
<script src="../../../webcomponentsjs/webcomponents-lite.js"></script>
<script src="../../../web-component-tester/browser.js"></script>
<link rel="import" href="../../polymer.html">
</head>
<body class="desktop">
<x-extended></x-extended>
<dom-module id="x-extended">
<link rel="import" type="css" href="styling-extends.css">
<style>
#container {
border: 2px solid orange;
padding: 10px;
}
#bar, .zow {
margin: 10px;
@extends(#foo);
}
#zot, .nug {
padding: 10px;
@extends(#bar);
}
.not {
border: 20px solid orange;
}
#use {
@extends(%use);
}
@media (max-width: 20000px) {
.baz {
padding: 15px;
}
#media {
@extends(#foo);
@extends(.baz);
}
}
@media (max-width: 1px) {
#media {
@extends(.not);
}
}
</style>
<template>
<div id="container">
<div id="foo">Foo</div>
<div id="bar">Bar</div>
<div id="zot">Zot</div>
<div id="media">Media</div>
<div id="use">Use</div>
</div>
</template>
<script>
HTMLImports.whenReady(function() {
Polymer({
is: 'x-extended'
});
});
</script>
</dom-module>
<script>
suite('styling-extends', function() {
function assertComputed(element, value, property) {
var computed = getComputedStyle(element);
property = property || 'border-top-width';
assert.equal(computed[property], value, 'computed style incorrect for ' + property);
}
var e = document.querySelector('x-extended');
test('styles extended', function() {
assertComputed(e.$.foo, '10px');
assertComputed(e.$.bar, '10px');
assertComputed(e.$.zot, '10px');
assertComputed(e.$.bar, '10px', 'margin-top');
assertComputed(e.$.zot, '10px', 'margin-top');
assertComputed(e.$.zot, '10px', 'padding-top');
});
test('nested styles extended (e.g. @media)', function() {
assertComputed(e.$.media, '10px');
assertComputed(e.$.media, '15px', 'padding-top');
});
test('% selector extended', function() {
assertComputed(e.$.use, '13px');
});
test('unused % selector stripped', function() {
var s = e._scopeStyle || e.root.querySelector('style');
assert.notMatch(s.textContent, /%remove/);
});
});
</script>
</body>
</html>