117 lines
3.7 KiB
JavaScript
117 lines
3.7 KiB
JavaScript
var delegate = require('../src/delegate');
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var simulant = require('simulant');
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describe('delegate', function() {
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before(function() {
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var html = '<ul>' +
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'<li><a>Item 1</a></li>' +
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'<li><a>Item 2</a></li>' +
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'<li><a>Item 3</a></li>' +
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'<li><a>Item 4</a></li>' +
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'<li><a>Item 5</a></li>' +
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'</ul>';
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document.body.innerHTML += html;
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global.container = document.querySelector('ul');
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global.anchor = document.querySelector('a');
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global.spy = sinon.spy(global.container, 'removeEventListener');
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});
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after(function() {
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global.spy.restore();
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document.body.innerHTML = '';
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});
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it('should add an event listener', function(done) {
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delegate(global.container, 'a', 'click', function() {
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done();
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});
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simulant.fire(global.anchor, simulant('click'));
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});
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it('should remove an event listener', function() {
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var delegation = delegate(global.container, 'a', 'click', function() {});
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delegation.destroy();
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assert.ok(global.spy.calledOnce);
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});
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it('should use `document` if the element is unspecified', function(done) {
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delegate('a', 'click', function() {
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done();
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});
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simulant.fire(global.anchor, simulant('click'));
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});
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it('should remove an event listener the unspecified base (`document`)', function() {
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var delegation = delegate('a', 'click', function() {});
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var spy = sinon.spy(document, 'removeEventListener');
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delegation.destroy();
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assert.ok(spy.calledOnce);
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spy.restore();
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});
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it('should add event listeners to all the elements in a base selector', function() {
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var spy = sinon.spy();
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delegate('li', 'a', 'click', spy);
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var anchors = document.querySelectorAll('a');
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simulant.fire(anchors[0], simulant('click'));
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simulant.fire(anchors[1], simulant('click'));
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assert.ok(spy.calledTwice);
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});
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it('should remove the event listeners from all the elements in a base selector', function() {
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var items = document.querySelectorAll('li')
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var spies = Array.prototype.map.call(items, function (li) {
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return sinon.spy(li, 'removeEventListener');
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});
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var delegations = delegate('li', 'a', 'click', function() {});
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delegations.forEach(function (delegation) {
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delegation.destroy();
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});
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spies.every(function (spy) {
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var success = spy.calledOnce;
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spy.restore();
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return success;
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});
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});
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it('should add event listeners to all the elements in a base array', function() {
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var spy = sinon.spy();
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var items = document.querySelectorAll('li')
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delegate(items, 'a', 'click', spy);
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var anchors = document.querySelectorAll('a')
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simulant.fire(anchors[0], simulant('click'));
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simulant.fire(anchors[1], simulant('click'));
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assert.ok(spy.calledTwice);
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});
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it('should remove the event listeners from all the elements in a base array', function() {
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var items = document.querySelectorAll('li')
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var spies = Array.prototype.map.call(items, function (li) {
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return sinon.spy(li, 'removeEventListener');
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});
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var delegations = delegate(items, 'a', 'click', function() {});
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delegations.forEach(function (delegation) {
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delegation.destroy();
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});
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spies.every(function (spy) {
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var success = spy.calledOnce;
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spy.restore();
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return success;
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});
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});
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});
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