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740 lines
22 KiB
JavaScript
740 lines
22 KiB
JavaScript
/* globals describe, it, beforeEach, afterEach */
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/* jshint expr: true */
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'use strict';
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var expect = window.chai.expect;
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var sinon = window.sinon;
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describe('shuffle', function () {
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var Shuffle = window.shuffle;
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var fixtures = {};
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var fixture;
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var instance;
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function getFixture(id) {
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return new Promise(function (resolve, reject) {
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var xhr = new XMLHttpRequest();
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xhr.onload = function () {
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resolve(xhr.responseText);
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};
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xhr.onerror = reject;
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xhr.open('GET', 'fixtures/' + id + '.html');
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xhr.send();
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});
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}
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function appendFixture(id) {
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function insert(content) {
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content = content.trim();
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var holder = document.createElement('div');
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holder.innerHTML = content;
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var element = holder.firstChild;
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document.body.appendChild(element);
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fixture = element;
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}
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if (fixtures[id]) {
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insert(fixtures[id]);
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return Promise.resolve();
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} else {
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return getFixture(id).then(function (html) {
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fixtures[id] = html;
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insert(html);
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});
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}
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}
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function removeFixture() {
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if (instance && instance.element) {
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instance.destroy();
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}
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if (fixture) {
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fixture.parentNode.removeChild(fixture);
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}
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instance = null;
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fixture = null;
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}
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function once(element, eventType, fn) {
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var handler = function (e) {
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element.removeEventListener(eventType, handler);
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fn(e);
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};
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element.addEventListener(eventType, handler);
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}
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function toArray(thing) {
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return Array.prototype.slice.call(thing);
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}
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function id(id) {
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return document.getElementById(id);
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}
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function whenTransitionDoneStub(element, itemCallback, done) {
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setTimeout(done, 0);
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}
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describe('regular fixture', function () {
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beforeEach(function (done) {
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// Mock the transition end event wrapper.
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sinon.stub(Shuffle.prototype, '_whenTransitionDone').callsFake(whenTransitionDoneStub);
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appendFixture('regular').then(done);
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});
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afterEach(function () {
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Shuffle.prototype._whenTransitionDone.restore();
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removeFixture();
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});
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it('should have default options', function () {
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instance = new Shuffle(fixture);
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expect(instance.items.length).to.equal(10);
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expect(instance.visibleItems).to.equal(10);
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expect(instance.options.group).to.equal('all');
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expect(instance.options.speed).to.equal(250);
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expect(instance.options.itemSelector).to.equal('*');
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expect(instance.options.sizer).to.equal(null);
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expect(instance.options.columnWidth).to.equal(0);
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expect(instance.options.gutterWidth).to.equal(0);
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expect(instance.options.delimeter).to.equal(null);
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expect(instance.options.initialSort).to.equal(null);
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expect(instance.options.throttleTime).to.equal(300);
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expect(instance.useSizer).to.equal(false);
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expect(instance.id).to.equal('shuffle_0');
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expect(instance.isInitialized).to.be.true;
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});
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it('should add classes and default styles', function () {
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instance = new Shuffle(fixture);
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expect(instance.element).to.have.class('shuffle');
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var styles = window.getComputedStyle(instance.element, null);
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expect(styles.position).to.equal('relative');
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expect(styles.overflow).to.equal('hidden');
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expect(instance.containerWidth).not.to.equal(0);
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instance.items.forEach(function (item) {
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expect(item.element).to.have.class('shuffle-item');
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expect(item.element).to.have.class('shuffle-item--visible');
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expect(item.element.style.opacity).to.be.defined;
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expect(item.element.style.position).to.equal('absolute');
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expect(item.element.style.visibility).to.equal('visible');
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expect(item.isVisible).to.equal(true);
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expect(item.scale).to.equal(Shuffle.ShuffleItem.Scale.VISIBLE);
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expect(item.point.x).to.be.defined;
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expect(item.point.y).to.be.defined;
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});
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});
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it('should be 3 columns with gutters', function () {
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fixture.style.width = '1000px';
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for (var i = 0; i < fixture.children.length; i++) {
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fixture.children[i].style.width = '300px';
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fixture.children[i].style.height = '150px';
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}
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instance = new Shuffle(fixture, {
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columnWidth: 300,
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gutterWidth: 50,
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});
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expect(instance.colWidth).to.equal(350);
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expect(instance.cols).to.equal(3);
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expect(instance.positions).to.deep.equal([600, 450, 450]);
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});
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it('can have a function for columns and gutters', function () {
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fixture.style.width = '1000px';
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for (var i = 0; i < fixture.children.length; i++) {
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fixture.children[i].style.width = '300px';
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fixture.children[i].style.height = '150px';
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}
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instance = new Shuffle(fixture, {
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columnWidth: function (containerWidth) {
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expect(containerWidth).to.equal(1000);
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return 300;
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},
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gutterWidth: function () {
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return 50;
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},
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});
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expect(instance._getGutterSize(1000)).to.equal(50);
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expect(instance._getColumnSize(1000, 50)).to.equal(350);
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expect(instance.colWidth).to.equal(350);
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expect(instance.cols).to.equal(3);
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expect(instance.positions).to.deep.equal([600, 450, 450]);
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});
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it('can have a function for columns/gutters and span multiple columns', function () {
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fixture.style.width = '1200px';
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for (var i = 0; i < fixture.children.length; i++) {
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fixture.children[i].style.width = '300px';
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fixture.children[i].style.height = '10px';
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}
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fixture.children[1].style.width = '600px';
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fixture.children[5].style.width = '600px';
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fixture.children[6].style.width = '900px';
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instance = new Shuffle(fixture, {
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columnWidth: function (containerWidth) {
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expect(containerWidth).to.equal(1200);
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return 300;
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},
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gutterWidth: function () {
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return 0;
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},
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});
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expect(instance._getGutterSize(1200)).to.equal(0);
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expect(instance._getColumnSize(1200, 0)).to.equal(300);
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expect(instance.colWidth).to.equal(300);
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expect(instance.cols).to.equal(4);
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expect(instance.positions).to.deep.equal([40, 40, 30, 30]);
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});
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it('can filter by the data attribute', function (done) {
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instance = new Shuffle(fixture, {
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speed: 0,
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});
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function second() {
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expect(instance.visibleItems).to.equal(3);
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var hidden = [3, 4, 5, 6, 7, 8, 10].map(function (num) {
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return id('item' + num);
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});
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var visible = [1, 2, 9].map(function (num) {
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return id('item' + num);
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});
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hidden.forEach(function (element) {
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expect(element).to.have.class(Shuffle.Classes.HIDDEN);
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expect(element.style.visibility).to.equal('hidden');
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});
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visible.forEach(function (element) {
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expect(element).to.have.class(Shuffle.Classes.VISIBLE);
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expect(element.style.visibility).to.equal('visible');
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});
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once(fixture, Shuffle.EventType.LAYOUT, third);
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// Filter by green.
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instance.filter('green');
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}
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function third() {
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expect(instance.visibleItems).to.equal(2);
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var hidden = [1, 2, 5, 6, 7, 8, 9, 10].map(function (num) {
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return id('item' + num);
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});
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var visible = [3, 4].map(function (num) {
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return id('item' + num);
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});
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hidden.forEach(function (element) {
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expect(element).to.have.class(Shuffle.Classes.HIDDEN);
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expect(element.style.visibility).to.equal('hidden');
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});
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visible.forEach(function (element) {
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expect(element).to.have.class(Shuffle.Classes.VISIBLE);
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expect(element.style.visibility).to.equal('visible');
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});
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done();
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}
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once(fixture, Shuffle.EventType.LAYOUT, second);
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instance.filter('design');
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});
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it('can initialize filtered and the category parameter is optional', function () {
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instance = new Shuffle(fixture, {
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speed: 40,
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group: 'design',
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});
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expect(instance.visibleItems).to.equal(3);
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});
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it('can initialize sorted', function () {
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var sortObj = {
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by: function (element) {
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return parseInt(element.getAttribute('data-age'), 10);
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},
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};
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instance = new Shuffle(fixture, {
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speed: 40,
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initialSort: sortObj,
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});
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expect(instance.lastSort).to.deep.equal(sortObj);
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});
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it('can calculate column spans', function () {
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// itemWidth, columnWidth, columns, threshold
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expect(Shuffle.__getColumnSpan(50, 100, 3, 0)).to.equal(1);
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expect(Shuffle.__getColumnSpan(200, 100, 3, 0)).to.equal(2);
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expect(Shuffle.__getColumnSpan(200, 200, 3, 0)).to.equal(1);
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expect(Shuffle.__getColumnSpan(300, 100, 3, 0)).to.equal(3);
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// Column span should not be larger than the number of columns.
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expect(Shuffle.__getColumnSpan(300, 50, 3, 0)).to.equal(3);
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// Fix for percentage values.
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expect(Shuffle.__getColumnSpan(100.02, 100, 4, 0)).to.equal(2);
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expect(Shuffle.__getColumnSpan(100.02, 100, 4, 0.01)).to.equal(1);
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expect(Shuffle.__getColumnSpan(99.98, 100, 4, 0.01)).to.equal(1);
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});
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it('can calculate column sets', function () {
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// getAvailablePositions(positions, columnSpan, columns)
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var positions = [150, 0, 0, 0];
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expect(Shuffle.__getAvailablePositions(positions, 1, 4)).to.deep.equal([150, 0, 0, 0]);
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expect(Shuffle.__getAvailablePositions(positions, 2, 4)).to.deep.equal([150, 0, 0]);
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});
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it('can get an element option', function () {
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instance = new Shuffle(fixture);
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var first = fixture.firstElementChild;
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expect(instance._getElementOption(first)).to.equal(first);
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expect(instance._getElementOption('#item1')).to.equal(first);
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expect(instance._getElementOption('#hello-world')).to.be.null;
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expect(instance._getElementOption(null)).to.be.null;
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expect(instance._getElementOption(undefined)).to.be.null;
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expect(instance._getElementOption(function () {
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return first;
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})).to.be.null;
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});
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it('can test elements against filters', function () {
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instance = new Shuffle(fixture);
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var first = fixture.firstElementChild;
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expect(instance._doesPassFilter('design', first)).to.be.true;
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expect(instance._doesPassFilter('black', first)).to.be.false;
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expect(instance._doesPassFilter(function (element) {
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expect(element).to.exist;
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return element.getAttribute('data-age') === '21';
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}, first)).to.equal(true);
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expect(instance._doesPassFilter(function (element) {
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return element.getAttribute('data-age') === '22';
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}, first)).to.equal(false);
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// Arrays.
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expect(instance._doesPassFilter(['design'], first)).to.be.true;
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expect(instance._doesPassFilter(['red'], first)).to.be.true;
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expect(instance._doesPassFilter(['design', 'black'], first)).to.be.true;
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// Change filter mode.
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instance.options.filterMode = Shuffle.FilterMode.ALL;
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expect(instance._doesPassFilter(['design'], first)).to.be.true;
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expect(instance._doesPassFilter(['design', 'red'], first)).to.be.true;
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expect(instance._doesPassFilter(['design', 'black'], first)).to.be.false;
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});
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it('will maintain the last sort object', function () {
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instance = new Shuffle(fixture);
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var initialSort = instance.lastSort;
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instance.sort();
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expect(instance.lastSort).to.deep.equal(initialSort);
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instance.sort({ glen: true });
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expect(instance.lastSort).to.deep.equal({ glen: true });
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instance.sort();
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expect(instance.lastSort).to.deep.equal({ glen: true });
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});
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it('should reset columns', function () {
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instance = new Shuffle(fixture);
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expect(instance.cols).to.be.above(0);
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instance._resetCols();
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var positions = new Array(instance.cols);
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for (var i = 0; i < instance.cols; i++) {
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positions[i] = 0;
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}
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expect(instance.positions).to.deep.equal(positions);
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});
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it('should destroy properly', function () {
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instance = new Shuffle(fixture);
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instance.destroy();
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expect(instance.element).to.be.null;
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expect(instance.items).to.be.null;
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expect(instance.options.sizer).to.be.null;
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expect(instance.isDestroyed).to.be.true;
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expect(fixture).to.not.have.class('shuffle');
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toArray(fixture.children).forEach(function (child) {
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expect(child).to.not.have.class('shuffle-item');
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expect(child).to.not.have.class('shuffle-item--visible');
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expect(child).to.not.have.class('shuffle-item--hidden');
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});
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});
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it('should not update or shuffle when disabled or destroyed', function () {
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instance = new Shuffle(fixture);
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var update = sinon.spy(instance, 'update');
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var _filter = sinon.spy(instance, '_filter');
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instance.disable();
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instance.filter('design');
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expect(_filter.called).to.be.false;
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expect(update.called).to.be.false;
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instance.enable(false);
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instance.destroy();
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instance._onResize();
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expect(update.called).to.be.false;
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});
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it('should not update when the container is the same size', function () {
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instance = new Shuffle(fixture);
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var update = sinon.spy(instance, 'update');
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instance._onResize();
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expect(update.called).to.be.false;
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});
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describe('removing elements', function () {
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var children;
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beforeEach(function () {
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children = toArray(fixture.children);
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});
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afterEach(function () {
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children = null;
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});
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it('can remove items', function (done) {
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instance = new Shuffle(fixture, {
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speed: 16,
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});
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once(fixture, Shuffle.EventType.REMOVED, function (evt) {
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var detail = evt.detail;
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expect(detail.shuffle.visibleItems).to.equal(8);
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expect(detail.collection[0].id).to.equal('item1');
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expect(detail.collection[1].id).to.equal('item2');
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expect(detail.shuffle.element.children).to.have.lengthOf(8);
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expect(instance.isTransitioning).to.be.false;
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done();
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});
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var itemsToRemove = children.slice(0, 2);
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instance.remove(itemsToRemove);
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});
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it('can remove items without transforms', function (done) {
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instance = new Shuffle(fixture, {
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speed: 100,
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useTransforms: false,
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});
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once(fixture, Shuffle.EventType.REMOVED, function (evt) {
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var detail = evt.detail;
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expect(detail.shuffle.visibleItems).to.equal(8);
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expect(detail.collection[0].id).to.equal('item2');
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expect(detail.collection[1].id).to.equal('item3');
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expect(detail.shuffle.element.children).to.have.lengthOf(8);
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expect(detail.shuffle.isTransitioning).to.be.false;
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done();
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});
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var itemsToRemove = children.slice(1, 3);
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instance.remove(itemsToRemove);
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});
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});
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it('can get the real width of an element which is scaled', function () {
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var div = document.createElement('div');
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div.style.cssText = 'width:100px;height:100px;';
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div.style.transform = 'translate(0px,0px) scale(0.5)';
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document.body.appendChild(div);
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expect(Shuffle.getSize(div, false).width).to.equal(100);
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expect(Shuffle.getSize(div, true).width).to.equal(100);
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expect(Shuffle.getSize(div, false).height).to.equal(100);
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expect(Shuffle.getSize(div, true).height).to.equal(100);
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div.style.marginLeft = '10px';
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div.style.marginRight = '20px';
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div.style.marginTop = '30px';
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div.style.marginBottom = '40px';
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expect(Shuffle.getSize(div, false).width).to.equal(100);
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expect(Shuffle.getSize(div, true).width).to.equal(130);
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expect(Shuffle.getSize(div, false).height).to.equal(100);
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expect(Shuffle.getSize(div, true).height).to.equal(170);
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document.body.removeChild(div);
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});
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describe('inserting elements', function () {
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var items = [];
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beforeEach(function () {
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var eleven = document.createElement('div');
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eleven.className = 'item';
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eleven.setAttribute('data-age', 36);
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eleven.setAttribute('data-groups', '["ux", "black"]');
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eleven.id = 'item11';
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eleven.textContent = 'Person 11';
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var twelve = document.createElement('div');
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twelve.className = 'item';
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twelve.setAttribute('data-age', 37);
|
|
twelve.setAttribute('data-groups', '["strategy", "blue"]');
|
|
twelve.id = 'item12';
|
|
twelve.textContent = 'Person 12';
|
|
|
|
items.push(eleven, twelve);
|
|
|
|
instance = new Shuffle(fixture, {
|
|
speed: 100,
|
|
group: 'black',
|
|
});
|
|
});
|
|
|
|
afterEach(function (done) {
|
|
once(fixture, Shuffle.EventType.LAYOUT, function () {
|
|
items.length = 0;
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('can add items', function () {
|
|
fixture.appendChild(items[0]);
|
|
fixture.appendChild(items[1]);
|
|
instance.add(items);
|
|
|
|
// Already 2 in the items, plus number 11.
|
|
expect(instance.visibleItems).to.equal(3);
|
|
expect(instance.items).to.have.lengthOf(12);
|
|
});
|
|
|
|
it('can prepend items', function () {
|
|
fixture.insertBefore(items[1], fixture.firstElementChild);
|
|
fixture.insertBefore(items[0], fixture.firstElementChild);
|
|
instance.add(items);
|
|
|
|
expect(instance.items[0].element).to.equal(items[0]);
|
|
expect(instance.items[1].element).to.equal(items[1]);
|
|
expect(instance.items).to.have.lengthOf(12);
|
|
});
|
|
|
|
});
|
|
});
|
|
|
|
describe('delimeter fixture', function () {
|
|
beforeEach(function (done) {
|
|
// Mock the transition end event wrapper.
|
|
sinon.stub(Shuffle.prototype, '_whenTransitionDone').callsFake(whenTransitionDoneStub);
|
|
|
|
appendFixture('delimeter').then(done);
|
|
});
|
|
|
|
afterEach(function () {
|
|
Shuffle.prototype._whenTransitionDone.restore();
|
|
removeFixture();
|
|
});
|
|
|
|
it('can have a custom delimeter', function () {
|
|
instance = new Shuffle(fixture, {
|
|
delimeter: ',',
|
|
group: 'design',
|
|
});
|
|
|
|
expect(instance.visibleItems).to.equal(3);
|
|
});
|
|
});
|
|
|
|
describe('Custom shuffle item styles', function () {
|
|
var original = Shuffle.ShuffleItem.Css;
|
|
|
|
beforeEach(function (done) {
|
|
appendFixture('regular').then(done);
|
|
});
|
|
|
|
afterEach(function () {
|
|
Shuffle.ShuffleItem.Css = original;
|
|
removeFixture();
|
|
});
|
|
|
|
it('will apply before and after styles even if the item will not move', function () {
|
|
Shuffle.ShuffleItem.Css.INITIAL.opacity = 0;
|
|
instance = new Shuffle(fixture, { speed: 0 });
|
|
|
|
// The layout method will have already set styles to their 'after' states
|
|
// upon initialization. Reset them here.
|
|
instance.items.forEach(function (item) {
|
|
item.applyCss(Shuffle.ShuffleItem.Css.INITIAL);
|
|
});
|
|
|
|
instance.items.forEach(function (item) {
|
|
expect(item.element.style.opacity).to.equal('0');
|
|
});
|
|
|
|
instance._layout(instance.items);
|
|
instance._processQueue();
|
|
|
|
instance.items.forEach(function (item) {
|
|
expect(item.element.style.opacity).to.equal('1');
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('the sorter', function () {
|
|
var items;
|
|
var clone;
|
|
|
|
beforeEach(function (done) {
|
|
appendFixture('regular').then(function () {
|
|
items = toArray(fixture.children).map(function (element) {
|
|
return { element: element };
|
|
});
|
|
|
|
clone = toArray(items);
|
|
|
|
done();
|
|
});
|
|
});
|
|
|
|
afterEach(function () {
|
|
items.length = 0;
|
|
clone.length = 0;
|
|
removeFixture();
|
|
});
|
|
|
|
it('will catch empty objects', function () {
|
|
expect(Shuffle.__sorter({})).to.deep.equal([]);
|
|
});
|
|
|
|
it('can randomize the elements', function () {
|
|
expect(items).to.have.lengthOf(10);
|
|
expect(Shuffle.__sorter(items)).to.deep.equal(items);
|
|
|
|
var clone = toArray(items);
|
|
expect(Shuffle.__sorter(clone, { randomize: true })).to.not.deep.equal(items);
|
|
});
|
|
|
|
it('can sort by a function', function () {
|
|
clone.sort(function (a, b) {
|
|
var age1 = parseInt(a.element.getAttribute('data-age'), 10);
|
|
var age2 = parseInt(b.element.getAttribute('data-age'), 10);
|
|
return age1 - age2;
|
|
});
|
|
|
|
var result = Shuffle.__sorter(items, {
|
|
by: function (element) {
|
|
expect(element).to.exist;
|
|
expect(element.nodeType).to.equal(1);
|
|
return parseInt(element.getAttribute('data-age'), 10);
|
|
},
|
|
});
|
|
|
|
expect(result).to.deep.equal(clone);
|
|
});
|
|
|
|
it('can sort by a function and reverse it', function () {
|
|
clone.sort(function (a, b) {
|
|
var age1 = parseInt(a.element.getAttribute('data-age'), 10);
|
|
var age2 = parseInt(b.element.getAttribute('data-age'), 10);
|
|
return age1 - age2;
|
|
}).reverse();
|
|
|
|
var result = Shuffle.__sorter(items, {
|
|
reverse: true,
|
|
by: function (element) {
|
|
return parseInt(element.getAttribute('data-age'), 10);
|
|
},
|
|
});
|
|
|
|
expect(result).to.deep.equal(clone);
|
|
});
|
|
|
|
it('will revert to DOM order if the `by` function returns undefined', function () {
|
|
var count = 0;
|
|
expect(Shuffle.__sorter(items, {
|
|
by: function () {
|
|
count++;
|
|
return count < 5 ? Math.random() : undefined;
|
|
},
|
|
})).to.deep.equal(clone);
|
|
});
|
|
|
|
it('can sort things to the top', function () {
|
|
items = items.slice(0, 4);
|
|
var final = [items[1], items[0], items[3], items[2]];
|
|
expect(Shuffle.__sorter(items, {
|
|
by: function (element) {
|
|
var age = parseInt(element.getAttribute('data-age'), 10);
|
|
if (age === 50) {
|
|
return 'sortFirst';
|
|
} else {
|
|
return age;
|
|
}
|
|
},
|
|
})).to.deep.equal(final);
|
|
});
|
|
|
|
it('can sort things to the bottom', function () {
|
|
items = items.slice(0, 4);
|
|
var final = [items[0], items[2], items[1], items[3]];
|
|
expect(Shuffle.__sorter(items, {
|
|
by: function (element) {
|
|
var age = parseInt(element.getAttribute('data-age'), 10);
|
|
if (age === 27) {
|
|
return 'sortLast';
|
|
} else {
|
|
return age;
|
|
}
|
|
},
|
|
})).to.deep.equal(final);
|
|
});
|
|
|
|
});
|
|
});
|