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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
The complete set of authors may be found at http://polymer.github.io/AUTHORS
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS
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
-->
<html>
<head>
<meta charset="UTF-8">
<title>iron-list test</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>
<link rel="import" href="../../test-fixture/test-fixture.html">
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<link rel="import" href="helpers.html">
<link rel="import" href="x-list.html">
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</head>
<body>
<test-fixture id="trivialList">
<template>
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<x-list></x-list>
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</template>
</test-fixture>
<script>
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suite('mutations to items', function() {
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var list, container;
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setup(function() {
container = fixture('trivialList');
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list = container.list;
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});
test('update physical item', function(done) {
var setSize = 100;
var phrase = 'It works!';
list.items = buildDataSet(setSize);
list.set('items.0.index', phrase);
flush(function() {
assert.equal(getFirstItemFromList(list).textContent, phrase);
done();
});
});
test('update virtual item', function(done) {
var setSize = 100;
var phrase = 'It works!';
list.items = buildDataSet(setSize);
function scrollBackUp() {
simulateScroll({
list: list,
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contribution: 100,
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target: 0
}, function() {
flush(function() {
assert.equal(getFirstItemFromList(list).textContent, phrase);
done();
});
});
}
flush(function() {
var rowHeight = list._physicalItems[0].offsetHeight;
// scroll down
simulateScroll({
list: list,
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contribution: 100,
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target: setSize*rowHeight
}, function() {
list.set('items.0.index', phrase);
flush(scrollBackUp);
});
});
});
test('push', function(done) {
var setSize = 100;
list.items = buildDataSet(setSize);
setSize = list.items.length;
list.push('items', buildItem(setSize));
assert.equal(list.items.length, setSize + 1);
flush(function() {
var rowHeight = list._physicalItems[0].offsetHeight;
var viewportHeight = list.offsetHeight;
var itemsPerViewport = Math.floor(viewportHeight/rowHeight);
assert.equal(getFirstItemFromList(list).textContent, 0);
simulateScroll({
list: list,
contribution: rowHeight,
target: list.items.length*rowHeight
}, function() {
assert.equal(getFirstItemFromList(list).textContent,
list.items.length - itemsPerViewport);
done();
});
})
});
test('pop', function(done) {
var setSize = 100;
list.items = buildDataSet(setSize);
flush(function() {
var rowHeight = list._physicalItems[0].offsetHeight;
simulateScroll({
list: list,
contribution: rowHeight,
target: setSize*rowHeight
}, function() {
var viewportHeight = list.offsetHeight;
var itemsPerViewport = Math.floor(viewportHeight/rowHeight);
list.pop('items');
flush(function() {
assert.equal(list.items.length, setSize-1);
assert.equal(getFirstItemFromList(list).textContent, setSize - 3 - 1);
done();
});
});
});
});
test('splice', function(done) {
var setSize = 45;
var phrase = 'It works!'
list.items = buildDataSet(setSize);
list.splice('items', 0, setSize, buildItem(phrase));
flush(function() {
assert.equal(list.items.length, 1);
assert.equal(getFirstItemFromList(list).textContent, phrase);
done();
});
});
});
</script>
</body>
</html>
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