spincycle
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A reactive message router and object manager that lets clients subscribe to object property changes on the server
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HTML
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@license
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Code distributed by Google as part of the polymer project is also
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<html>
<head>
<title>iron-selector-basic</title>
<meta charset="utf-8">
<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>
<link rel="import" href="../../test-fixture/test-fixture.html">
<link rel="import" href="../iron-selector.html">
<style>
.iron-selected {
background: #ccc;
}
.my-selected {
background: red;
}
</style>
</head>
<body>
<test-fixture id="defaults">
<template>
<iron-selector>
<div>Item 0</div>
<div>Item 1</div>
<div>Item 2</div>
<div>Item 3</div>
<div>Item 4</div>
</iron-selector>
</template>
</test-fixture>
<br><br>
<test-fixture id="basic">
<template>
<iron-selector selected="item2" attr-for-selected="id">
<div id="item0">Item 0</div>
<div id="item1">Item 1</div>
<div id="item2">Item 2</div>
<div id="item3">Item 3</div>
<div id="item4">Item 4</div>
</iron-selector>
</template>
</test-fixture>
<script>
suite('defaults', function() {
var s1;
setup(function () {
s1 = fixture('defaults');
});
test('to nothing selected', function() {
assert.equal(s1.selected, null);
});
test('to iron-selected as selectedClass', function() {
assert.equal(s1.selectedClass, 'iron-selected');
});
test('to false as multi', function() {
assert.isFalse(s1.multi);
});
test('to tap as activateEvent', function() {
assert.equal(s1.activateEvent, 'tap');
});
test('to nothing as attrForSelected', function() {
assert.equal(s1.attrForSelected, null);
});
test('as many items as children', function() {
assert.equal(s1.items.length, s1.querySelectorAll('div').length);
});
});
suite('basic', function() {
var s2;
setup(function () {
s2 = fixture('basic');
});
test('honors the attrForSelected attribute', function(done) {
Polymer.Base.async(function() {
assert.equal(s2.attrForSelected, 'id');
assert.equal(s2.selected, 'item2');
assert.equal(s2.selectedItem, document.querySelector('#item2'));
done();
});
});
test('allows assignment to selected', function() {
// set selected
s2.selected = 'item4';
// check selected class
assert.isTrue(s2.children[4].classList.contains('iron-selected'));
// check item
assert.equal(s2.selectedItem, s2.children[4]);
});
test('fire iron-select when selected is set', function() {
// setup listener for iron-select event
var selectedEventCounter = 0;
s2.addEventListener('iron-select', function(e) {
selectedEventCounter++;
});
// set selected
s2.selected = 'item4';
// check iron-select event
assert.equal(selectedEventCounter, 1);
});
test('set selected to old value', function() {
// setup listener for iron-select event
var selectedEventCounter = 0;
s2.addEventListener('iron-select', function(e) {
selectedEventCounter++;
});
// selecting the same value shouldn't fire iron-select
s2.selected = 'item2';
assert.equal(selectedEventCounter, 0);
});
test('force synchronous item update', function() {
expect(s2.items.length).to.be.equal(5);
Polymer.dom(s2).appendChild(document.createElement('div'));
expect(s2.items.length).to.be.equal(5);
s2.forceSynchronousItemUpdate();
expect(s2.items.length).to.be.equal(6);
});
suite('`select()` and `selectIndex()`', function() {
test('`select()` selects an item with the given value', function() {
s2.select('item1');
assert.equal(s2.selected, 'item1');
s2.select('item3');
assert.equal(s2.selected, 'item3');
s2.select('item2');
assert.equal(s2.selected, 'item2');
});
test('`selectIndex()` selects an item with the given index', function() {
assert.equal(s2.selectedItem, undefined);
s2.selectIndex(1);
assert.equal(s2.selected, 'item1');
assert.equal(s2.selectedItem, s2.items[1]);
s2.selectIndex(3);
assert.equal(s2.selected, 'item3');
assert.equal(s2.selectedItem, s2.items[3]);
s2.selectIndex(4);
assert.equal(s2.selected, 'item4');
assert.equal(s2.selectedItem, s2.items[4]);
});
});
suite('items changing', function() {
var s1;
setup(function() {
s1 = fixture('defaults');
});
test('cause iron-items-changed to fire', function(done) {
var newItem = document.createElement('div');
var changeCount = 0;
newItem.id = 'item999';
s2.addEventListener('iron-items-changed', function(event) {
changeCount++;
var mutation = event.detail;
assert.notEqual(mutation, undefined);
assert.notEqual(mutation.addedNodes, undefined);
assert.notEqual(mutation.removedNodes, undefined);
});
Polymer.dom(s2).appendChild(newItem);
Polymer.Base.async(function() {
Polymer.dom(s2).removeChild(newItem);
Polymer.Base.async(function() {
expect(changeCount).to.be.equal(2);
done();
}, 1);
}, 1);
});
test('updates selected item', function(done) {
s1.addEventListener('iron-items-changed', function firstListener() {
s1.removeEventListener('iron-items-changed', firstListener);
var firstElementChild = Polymer.dom(s1).firstElementChild;
expect(firstElementChild).to.be.equal(s1.selectedItem);
expect(firstElementChild.classList.contains('iron-selected'))
.to.be.eql(true);
Polymer.dom(s1).removeChild(s1.selectedItem);
s1.addEventListener('iron-items-changed', function() {
firstElementChild = Polymer.dom(s1).firstElementChild;
expect(firstElementChild).to.be.equal(s1.selectedItem);
expect(firstElementChild.classList.contains('iron-selected'))
.to.be.eql(true);
done();
});
});
s1.selected = 0;
});
});
suite('dynamic selector', function() {
test('selects dynamically added child automatically', function(done) {
var selector = document.createElement('iron-selector');
var child = document.createElement('div');
selector.selected = '0';
child.textContent = 'Item 0';
Polymer.dom(selector).appendChild(child);
document.body.appendChild(selector);
Polymer.Base.async(function() {
assert.equal(child.className, 'iron-selected');
document.body.removeChild(selector);
done();
}, 1);
});
});
});
</script>
</body>
</html>