f748e9cf
 Luigi Serra
new controllet an...
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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>
<title>iron-meta</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-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>
<link rel="import" href="../iron-meta.html">
<link rel="import" href="../../test-fixture/test-fixture.html">
</head>
<body>
<test-fixture id="TrivialMeta">
<template>
<iron-meta self key="info"></iron-meta>
</template>
</test-fixture>
<test-fixture id="ManyMetas">
<template>
<iron-meta self key="default1"></iron-meta>
<iron-meta self key="default2"></iron-meta>
<iron-meta self key="default3"></iron-meta>
</template>
</test-fixture>
<test-fixture id="DifferentTypedMetas">
<template>
<iron-meta self type="foo" key="foobarKey"></iron-meta>
<iron-meta self type="bar" key="foobarKey"></iron-meta>
<iron-meta self key="defaultKey"></iron-meta>
</template>
</test-fixture>
<test-fixture id="ClashingMetas">
<template>
<iron-meta self key="baz"></iron-meta>
<iron-meta self key="baz"></iron-meta>
</template>
</test-fixture>
<script>
suite('<iron-meta>', function () {
suite('basic behavior', function () {
var meta;
setup(function () {
meta = fixture('TrivialMeta');
});
teardown(function () {
meta.key = null;
});
test('uses itself as the default value', function () {
expect(meta.value).to.be.equal(meta);
});
test('can be assigned alternative values', function () {
meta.value = 'foobar';
expect(meta.list[0]).to.be.equal('foobar');
});
test('can access same-type meta values by key', function () {
expect(meta.byKey(meta.key)).to.be.equal(meta.value);
});
test('yields a list of same-type meta data', function () {
expect(meta.list).to.be.ok;
expect(meta.list.length).to.be.equal(1);
expect(meta.list[0]).to.be.equal(meta);
});
});
suite('many same-typed metas', function () {
var metas;
setup(function () {
metas = fixture('ManyMetas');
});
teardown(function () {
metas.forEach(function (meta) {
meta.key = null;
});
});
test('all cache all meta values', function () {
metas.forEach(function (meta, index) {
expect(meta.list.length).to.be.equal(metas.length);
expect(meta.list[index].value).to.be.equal(meta.value);
});
});
test('can be unregistered individually', function () {
metas[0].key = null;
expect(metas[0].list.length).to.be.equal(2);
expect(metas[0].list).to.be.deep.equal([metas[1], metas[2]])
});
test('can access each others value by key', function () {
expect(metas[0].byKey('default2')).to.be.equal(metas[1].value);
});
});
suite('different-typed metas', function () {
var metas;
setup(function () {
metas = fixture('DifferentTypedMetas');
});
teardown(function () {
metas.forEach(function (meta) {
meta.key = null;
});
});
test('cache their values separately', function () {
var fooMeta = metas[0];
var barMeta = metas[1];
expect(fooMeta.value).to.not.be.equal(barMeta.value);
expect(fooMeta.byKey('foobarKey')).to.be.equal(fooMeta.value);
expect(barMeta.byKey('foobarKey')).to.be.equal(barMeta.value);
});
test('cannot access values of other types', function () {
var defaultMeta = metas[2];
expect(defaultMeta.byKey('foobarKey')).to.be.equal(undefined);
});
test('only list values of their type', function () {
metas.forEach(function (meta) {
expect(meta.list.length).to.be.equal(1);
expect(meta.list[0]).to.be.equal(meta.value);
})
});
});
suite('metas with clashing keys', function () {
var metaPair;
setup(function () {
metaPair = fixture('ClashingMetas');
});
teardown(function () {
metaPair.forEach(function (meta) {
meta.key = null;
});
});
test('let the last value win registration against the key', function () {
var registeredValue = metaPair[0].byKey(metaPair[0].key);
var firstValue = metaPair[0].value;
var secondValue = metaPair[1].value;
expect(registeredValue).to.not.be.equal(firstValue);
expect(registeredValue).to.be.equal(secondValue);
});
});
suite('singleton', function () {
test('only one ironmeta created', function () {
var first = Polymer.IronMeta.getIronMeta();
var second = Polymer.IronMeta.getIronMeta();
expect(first).to.be.equal(second);
});
});
});
</script>
</body>
</html>
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