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Ember Testing Guide The Unofficial #emberconf

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I tweet at @cavneb @coderberry I blog at coderberry.me I commit to github.com/cavneb I work for Instructure I run the EmberSLC meetup My cat can eat a whole watermelon Eric Berry

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@_mmun @codeofficer @mixonic @jgwhite @isaacezer @kkrajcev @JimDAlbano @bantic @terzicigor @blairbodnar @twukol @joefiorini @abuiles @workmanw @bezomaxo

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"SJSA Grade Six - The Year I Rebelled" by Michael 1952 BE GOOD

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"SJSA Grade Six - The Year I Rebelled" by Michael 1952 attrib: inspiredMonkey.com

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Ember Testing

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Happy Birthday

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How to Test

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Assertions

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qunit

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jsbin.com/suteg 1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! 13 module('group of tests', {! setup: function() {! // run before each test! },! teardown: function() {! // run after each test! }! });! ! test('should be true', function() {! ok(true, 'should be true');! equal(1, 1, 'should equal');! });

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qunit-basics.js 1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! 13 module('group of tests', {! setup: function() {! // run before each test! },! teardown: function() {! // run after each test! }! });! ! test('should be true', function() {! ok(true, 'should be true');! equal(1, 1, 'should equal');! }); callbacks

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assertion inverse assertion equal() notEqual() deepEqual() notDeepEqual() propEqual() notPropEqual() strictEqual() notStrictEqual() ok() throws() http://api.qunitjs.com/category/assert/

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“We're paving the QUnit happy path but not excluding others.”

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Happy Path!

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Assertions

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Helpers

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 App.setupForTesting();! App.injectTestHelpers();! ! test(‘welcome page', function() {! visit('/');! ! andThen(function() {! equal(find('h2').text(), 'Welcome to Ember.js');! equal(find('ul li').length, 3);! });! }); jsbin.com/suteg

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 App.setupForTesting();! App.injectTestHelpers();! ! test(‘welcome page', function() {! visit('/');! ! andThen(function() {! equal(find('h2').text(), 'Welcome to Ember.js');! equal(find('ul li').length, 3);! });! }); jsbin.com/suteg

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 App.setupForTesting();! App.injectTestHelpers();! ! test(‘welcome page', function() {! visit('/');! ! andThen(function() {! equal(find('h2').text(), 'Welcome to Ember.js');! equal(find('ul li').length, 3);! });! }); jsbin.com/suteg

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 App.setupForTesting();! App.injectTestHelpers();! ! test(‘welcome page', function() {! visit('/');! ! andThen(function() {! equal(find('h2').text(), 'Welcome to Ember.js');! equal(find('ul li').length, 3);! });! }); jsbin.com/suteg

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Ember.Test provides QUnit provides

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Ember Testing

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visit() fillIn() click() andThen() find() keyEvent()

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asynchronous visit() fillIn() click() andThen() find() keyEvent()

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synchronous visit() fillIn() click() andThen() find() keyEvent()

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wait helper visit() fillIn() click() andThen() find() keyEvent()

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10 test('add new post', function() {! visit('/posts/new');! fillIn('input.title', 'My new post');! click('button.submit');! ! andThen(function() {! equal(find('ul.posts li:last').text(), ! 'My new post');! });! }); jsbin.com/vusaz visit() fillIn() click() andThen() find() keyEvent()

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visit() fillIn() click() andThen() find() keyEvent() 1! 2! 3! 4! 5! 6! 7! 8! 9! 10 test('add new post', function() {! visit('/posts/new');! fillIn('input.title', 'My new post');! click('button.submit');! ! andThen(function() {! equal(find('ul.posts li:last').text(), ! 'My new post');! });! }); jsbin.com/vusaz

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visit() fillIn() click() andThen() find() keyEvent() 1! 2! 3! 4! 5! 6! 7! 8! 9! 10 test('add new post', function() {! visit('/posts/new');! fillIn('input.title', 'My new post');! click('button.submit');! ! andThen(function() {! equal(find('ul.posts li:last').text(), ! 'My new post');! });! }); jsbin.com/vusaz

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visit() fillIn() click() andThen() find() keyEvent() 1! 2! 3! 4! 5! 6! 7! 8! 9! 10 test('add new post', function() {! visit('/posts/new');! fillIn('input.title', 'My new post');! click('button.submit');! ! andThen(function() {! equal(find('ul.posts li:last').text(), ! 'My new post');! });! }); jsbin.com/vusaz

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visit() fillIn() click() andThen() find() keyEvent() 1! 2! 3! 4! 5! 6! 7! 8! 9! 10 test('add new post', function() {! visit('/posts/new');! fillIn('input.title', 'My new post');! click('button.submit');! ! andThen(function() {! equal(find('ul.posts li:last').text(), ! 'My new post');! });! }); jsbin.com/vusaz

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visit() fillIn() click() andThen() find() keyEvent() 1! 2! 3! 4! 5! 6! 7! 8! 9! 10 test('add new post', function() {! visit('/posts/new');! fillIn('input.title', 'My new post');! click('button.submit');! ! andThen(function() {! equal(find('ul.posts li:last').text(), ! 'My new post');! });! }); jsbin.com/vusaz

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TEAMWORK! TEAMWORK!

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Custom Helpers

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registerHelper(name, func, [options]) 1! 2! 3! 4! 5! 6! 7! 8! 9! 10 Ember.Test.registerHelper('currentURL', ! function(app) {! return app.__container__.lookup('router:main')! .get('location')! .getURL()! }! );! ! // runs instantly! equal(currentUrl(), '/posts/new');

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registerAsyncHelper(name, func, [options]) 1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 Ember.Test.registerAsyncHelper('submitForm',! function(app, selector, context) {! var $el = findWithAssert(selector, context);! Ember.run(function() {! $el.submit();! });! }! );! ! // usage! submitForm('.my-form');!

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INJECT REMEMBER TO App.injectTestHelpers(); CUSTOM HELPERS

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is that it?

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Ember 1.5

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More
 Helpers

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triggerEvent() currentRouteName() currentPath() currentURL() Integration THE NEXT GENERATION Helpers

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12 test('trigger events', function() {! ! // simulate enter key! triggerEvent('#name', 'keypress', { keyCode: 13 });! ! // blur element! triggerEvent('#search', 'blur');! ! // double-click element! triggerEvent('.post-5', 'dblclick');
 ! });! ! triggerEvent(selector, type, [options])

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1! 2! 3! 4! 5! 6! 7! 8! 9 test('root path goes to posts.index', function() {! visit('/');! andThen(function() {! ! // assert we made it to the correct route! equal(currentRouteName(), 'posts.index');! ! });! });! currentRouteName() App.__container__.lookup(‘controllers:application’).get(’currentRouteName’)

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1! 2! 3! 4! 5! 6! 7! 8! 9 test('redirect occurred', function() {! visit('/posts/new');! andThen(function() {! ! // assert we made it to the correct route! equal(currentPath(), 'posts.new');! ! });! });! currentPath() App.__container__.lookup(‘controllers:application’).get(’currentPath’)

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1! 2! 3! 4! 5! 6! 7! 8! 9 test('redirect occurred', function() {! visit('/posts/new');! andThen(function() {! ! // assert we made it to the correct route! equal(currentURL(), '/posts/new');! ! });! });! currentURL() App.__container__.lookup(‘router:main’).get(’location’).getURL()

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Who are you tryin' to get crazy with, ese? Don't you know we need more???

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“integration tests prove 
 your communication, unit tests prove your code” - Julian Simioni (@juliansimioni)

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“integration tests prove 
 your communication, unit tests prove your code” - Julian Simioni (@juliansimioni)

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Scenario 1: A list of posts should be filterable by title Given there are 3 posts When I visit ‘/posts’ And enter filter text which matches 1 post Then I should see 1 post

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BDD

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integration

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Scenario 1: A list of posts should be filterable by title Given there are 3 posts When I visit ‘/posts’ And enter filter text which matches 1 post Then I should see 1 post

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jsbin.com/cahuc 1! 2! 3! 4! 5! 6! 7 test("filters posts by title", function() {! visit("/posts");! fillIn(".search", "auth");! andThen(function() {! equal(find(".post-title").length, 1);! })! });!

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jsbin.com/cahuc 1! 2! 3! 4! 5! 6! 7 test("filters posts by title", function() {! visit("/posts");! fillIn(".search", "auth");! andThen(function() {! equal(find(".post-title").length, 1);! })! });! 1! 2! 3! 4! 5! 6! 7 test("filters users by name", function() {! visit("/users");! fillIn(".search", “Bob Hanson");! andThen(function() {! equal(find(".user-name").length, 1);! })! });!

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1! 2! 3! 4! 5 App.PostsController = Ember.ArrayController.extend(! App.FilterableArrayMixin, {! ! filterField: 'title'! });! 1! 2! 3! 4! 5 App.UsersController = Ember.ArrayController.extend(! App.FilterableArrayMixin, {! ! filterField: 'name'! });! jsbin.com/cahuc

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1! 2! 3! 4! 5 App.PostsController = Ember.ArrayController.extend(! App.FilterableArrayMixin, {! ! filterField: 'title'! });! 1! 2! 3! 4! 5 App.UsersController = Ember.ArrayController.extend(! App.FilterableArrayMixin, {! ! filterField: 'name'! });! jsbin.com/cahuc

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! 13! 14! 15 App.FilterableArrayMixin = Ember.Mixin.create({! filterText: null,! ! filteredContent: function() {! var filterText = this.getWithDefault('filterText', '');! if (Em.isEmpty(filterText)) {! return this.get('content');! } else {! return this.get('content').filter(function(item) {! var str = item.get(this.get('filterField')).toLowerCase();! return str.match(filterText.toLowerCase());! }.bind(this));! }! }.property('content', 'filterText')! });! jsbin.com/cahuc

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! 13! 14! 15 App.FilterableArrayMixin = Ember.Mixin.create({! filterText: null,! ! filteredContent: function() {! var filterText = this.getWithDefault('filterText', '');! if (Em.isEmpty(filterText)) {! return this.get('content');! } else {! return this.get('content').filter(function(item) {! var str = item.get(this.get('filterField')).toLowerCase();! return str.match(filterText.toLowerCase());! }.bind(this));! }! }.property('content', 'filterText')! });! jsbin.com/cahuc

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! 13! 14! 15 App.FilterableArrayMixin = Ember.Mixin.create({! filterText: null,! ! filteredContent: function() {! var filterText = this.getWithDefault('filterText', '');! if (Em.isEmpty(filterText)) {! return this.get('content');! } else {! return this.get('content').filter(function(item) {! var str = item.get(this.get('filterField')).toLowerCase();! return str.match(filterText.toLowerCase());! }.bind(this));! }! }.property('content', 'filterText')! });! ISOLATED? jsbin.com/cahuc

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unit

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“integration tests prove 
 your communication, unit tests prove your code” - Julian Simioni (@juliansimioni)

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IT’S NOT FUN

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Templates Views Controllers Routes Models Core

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Container

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RESOLVER THE

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Test

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Ember-QUnit github.com/rpflorence/ember-qunit

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no more everything

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inspired by rspec

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packaged for CommonJS AMD Named AMD Globals

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setup

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globals-unit-test-setup.js 1! 2! 3! 4! 5! 6! 7! 8 // inject test helpers onto window! emq.globalize();! ! // create a custom test resolver! App.Resolver = Ember.DefaultResolver.extend({ namespace: App });! ! // set the test resolver! setResolver(App.Resolver.create());! Globals

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globals-unit-test-setup.js 1! 2! 3! 4! 5! 6! 7! 8 // inject test helpers onto window! emq.globalize();! ! // create a custom test resolver! App.Resolver = Ember.DefaultResolver.extend({ namespace: App });! ! // set the test resolver! setResolver(App.Resolver.create());! Globals

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globals-unit-test-setup.js 1! 2! 3! 4! 5! 6! 7! 8 // inject test helpers onto window! emq.globalize();! ! // create a custom test resolver! App.Resolver = Ember.DefaultResolver.extend({ namespace: App });! ! // set the test resolver! setResolver(App.Resolver.create());! Globals

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modules-unit-test-setup.js 1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 // inject test helpers onto window! emq.globalize();! ! // import the existing resolver! import Resolver from ‘./path/to/resolver';! ! // import the setResolver function! import { setResolver } from ‘ember-qunit';! ! // set the resolver! setResolver(Resolver.create());! Modules

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modules-unit-test-setup.js 1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 // inject test helpers onto window! emq.globalize();! ! // import the existing resolver! import Resolver from ‘./path/to/resolver';! ! // import the setResolver function! import { setResolver } from ‘ember-qunit';! ! // set the resolver! setResolver(Resolver.create());! Modules

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moduleFor() moduleForComponent() moduleForModel() Ember-QUnit

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moduleFor(“route:index”)

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moduleFor(“route:index”)

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moduleFor(“route:index”)

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Container moduleFor(“route:index”)

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moduleFor(“route:index”) Container

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Container test(‘test 1’, function() {! var route = this.subject();! }) test(‘test 1’, function() {! var route = this.subject();! }) moduleFor(“route:index”)

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Container test(‘test 1’, function() {! var route = this.subject();! }) test(‘test 1’, function() {! var route = this.subject();! }) moduleFor(“route:index”)

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moduleFor(fullName [, description [, callbacks]]) The description of the module description The full name of the unit (ie. controller:application or route:index) fullName Normal QUnit callbacks (setup, teardown), width addition of needs callbacks

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routes

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1! 2! 3! 4! 5! App.IndexRoute = Ember.Route.extend({! model: function() {! return ['red', 'green', 'blue'];! }! });! 1! 2! 3! 4! 5! 6 moduleFor('route:index', 'Unit: Index Route');! ! test('model', function() {! var route = this.subject();! equal(route.model().toString(), 'red,green,blue');! });! jsbin.com/qifon

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1! 2! 3! 4! 5! App.IndexRoute = Ember.Route.extend({! model: function() {! return ['red', 'green', 'blue'];! }! });! 1! 2! 3! 4! 5! 6 moduleFor('route:index', 'Unit: Index Route');! ! test('model', function() {! var route = this.subject();! equal(route.model().toString(), 'red,green,blue');! });! jsbin.com/qifon

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1! 2! 3! 4! 5! App.IndexRoute = Ember.Route.extend({! model: function() {! return ['red', 'green', 'blue'];! }! });! 1! 2! 3! 4! 5! 6! moduleFor('route:index', 'Unit: Index Route');! ! test('model', function() {! var route = this.subject();! equal(route.model().toString(), 'red,green,blue');! });! jsbin.com/qifon

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1! 2! 3! 4! 5! App.IndexRoute = Ember.Route.extend({! model: function() {! return ['red', 'green', 'blue'];! }! });! 1! 2! 3! 4! 5! 6 moduleFor('route:index', 'Unit: Index Route');! ! test('model', function() {! var route = this.subject();! equal(route.model().toString(), 'red,green,blue');! });! jsbin.com/qifon

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controllers

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1! 2! 3! 4! 5! 6! 7! 8! ! 1! 2! 3! 4! 5! 6! 7! ! App.ApplicationController = Ember.Controller.extend({! user: null,! ! init: function() {! this._super.apply(this, arguments);! this.set('user', Em.Object.create({ name: 'Guest' }));! }! });! ! App.ProfileController = Ember.Controller.extend({! needs: ['application'],! ! name: function() {! return this.get('controllers.application.user.name');! }.property('controllers.application.user.name')! });! jsbin.com/numof

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1! 2! 3! 4! 5! 6! 7! 8! ! 1! 2! 3! 4! 5! 6! 7! ! App.ApplicationController = Ember.Controller.extend({! user: null,! ! init: function() {! this._super.apply(this, arguments);! this.set('user', Em.Object.create({ name: 'Guest' }));! }! });! ! App.ProfileController = Ember.Controller.extend({! needs: ['application'],! ! name: function() {! return this.get('controllers.application.user.name');! }.property('controllers.application.user.name')! });! jsbin.com/numof

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1! 2! 3! 4! 5! 6! 7! 8! 9 ! 10! 11! 12! 13! 14! ! moduleFor('controller:profile', 'Unit: Stuff Controller', {! needs: ['controller:application']! });! ! test('name', function() {! var ctrl = this.subject(),! appCtrl = ctrl.get('controllers.application');! ! equal(ctrl.get('name'), 'Guest');! Ember.run(function() {! appCtrl.get('user').set('name', 'Eric');! });! equal(ctrl.get('name'), 'Eric');! });! jsbin.com/numof

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1! 2! 3! 4! 5! 6! 7! 8! 9 ! 10! 11! 12! 13! 14! ! moduleFor('controller:profile', 'Unit: Stuff Controller', {! needs: ['controller:application']! });! ! test('name', function() {! var ctrl = this.subject(),! appCtrl = ctrl.get('controllers.application');! ! equal(ctrl.get('name'), 'Guest');! Ember.run(function() {! appCtrl.get('user').set('name', 'Eric');! });! equal(ctrl.get('name'), 'Eric');! });! jsbin.com/numof

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1! 2! 3! 4! 5! 6! 7! 8! 9 ! 10! 11! 12! 13! 14! ! moduleFor('controller:stuff', 'Unit: Stuff Controller', {! needs: ['controller:application']! });! ! test('name', function() {! var ctrl = this.subject(),! appCtrl = ctrl.get('controllers.application');! ! equal(ctrl.get('name'), 'Guest');! Ember.run(function() {! appCtrl.get('user').set('name', 'Eric');! });! equal(ctrl.get('name'), 'Eric');! });! jsbin.com/numof

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1! 2! 3! 4! 5! 6! 7! 8! 9 ! 10! 11! 12! 13! 14! ! moduleFor('controller:stuff', 'Unit: Stuff Controller', {! needs: ['controller:application']! });! ! test('name', function() {! var ctrl = this.subject(),! appCtrl = ctrl.get('controllers.application');! ! equal(ctrl.get('name'), 'Guest');! Ember.run(function() {! appCtrl.get('user').set('name', 'Eric');! });! equal(ctrl.get('name'), 'Eric');! });! jsbin.com/numof

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The description of the module description The short name of the component (ie. x-foo or ic-tabs) name Normal QUnit callbacks (setup, teardown), width addition of needs callbacks moduleForComponent(name [, description [, callbacks]])

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1! 2! 3! 4! 5! 6! 7! App.PrettyColorComponent = Ember.Component.extend({! classNames: ['pretty-color'],! attributeBindings: ['style'],! style: function() {! return 'color: ' + this.get('color') + ';';! }.property('color')! });! jsbin.com/witut

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! …! moduleForComponent('pretty-color', 'Unit: components/pretty-color');! ! test("set colors", function() {! var component = this.subject();! ! Ember.run(function() {! component.set('color', 'green');! });! ! // first call to this.$() renders the component! equal(this.$().attr('style'), 'color: green;');! }); jsbin.com/witut

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! …! moduleForComponent('pretty-color', 'Unit: components/pretty-color');! ! test("set colors", function() {! var component = this.subject();! ! Ember.run(function() {! component.set('color', 'green');! });! ! // first call to this.$() renders the component! equal(this.$().attr('style'), 'color: green;');! }); jsbin.com/witut

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! …! moduleForComponent('pretty-color', 'Unit: components/pretty-color');! ! test("set colors", function() {! var component = this.subject();! ! Ember.run(function() {! component.set('color', 'green');! });! ! // first call to this.$() renders the component! equal(this.$().attr('style'), 'color: green;');! }); jsbin.com/witut

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11! 12! …! moduleForComponent('pretty-color', 'Unit: components/pretty-color');! ! test("set colors", function() {! var component = this.subject();! ! Ember.run(function() {! component.set('color', 'green');! });! ! // first call to this.$() renders the component! equal(this.$().attr('style'), 'color: green;');! }); jsbin.com/witut

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jsbin.com/kilej

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The description of the module description The short name of the model you’d use in `store` operations (ie. user or assignmentGroup) name Normal QUnit callbacks (setup, teardown), width addition of needs callbacks moduleForModel(name [, description [, callbacks]])

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1! 2! 3! 4! 5! 6! 7! 8 App.User = DS.Model.extend({! fName: DS.attr('string'),! lName: DS.attr('string'),! verified: DS.attr('boolean', { defaultValue: false }),! createdAt: DS.attr('string', {! defaultValue: function() { return new Date(); }! })! }); jsbin.com/mapuf

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 moduleForModel('user', 'Unit: User Model');! ! test('createdAt defaults to now', function() {! var user = this.subject({! firstName: 'Eric',! lastName: 'Berry'! });! var createdAt = user.get('createdAt');! var now = new Date();! equal(createdAt.toString(), now.toString());! });! jsbin.com/mapuf

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 moduleForModel('user', 'Unit: User Model');! ! test('createdAt defaults to now', function() {! var user = this.subject({! firstName: 'Eric',! lastName: 'Berry'! });! var createdAt = user.get('createdAt');! var now = new Date();! equal(createdAt.toString(), now.toString());! });! jsbin.com/mapuf

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 moduleForModel('user', 'Unit: User Model');! ! test('createdAt defaults to now', function() {! var user = this.subject({! firstName: 'Eric',! lastName: 'Berry'! });! var createdAt = user.get('createdAt');! var now = new Date();! equal(createdAt.toString(), now.toString());! });! jsbin.com/mapuf

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1! 2! 3! 4! 5! 6! 7! 8! 9! 10! 11 moduleForModel('user', 'Unit: User Model');! ! test('createdAt defaults to now', function() {! var user = this.subject({! firstName: 'Eric',! lastName: 'Berry'! });! var createdAt = user.get('createdAt');! var now = new Date();! equal(createdAt.toString(), now.toString());! });! jsbin.com/mapuf

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github/rpflorence/ember-qunit

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bower install ember-qunit

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already included in
 ember-app-kit

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already included in
 ember-cli

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and…

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Almost done… http://goo.gl/ov6SSb

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thank you @rwjblue @stefanpenner @abuiles @dericabel @tehviking @ryanflorence @fivetanley @jason.madsen @sterlingcobb @codeofficer @JimDAlvado @ryankshaw @DevEngine @toranb

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thank you spouses, partners and 
 significant others

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I tweet at @coderberry I blog at coderberry.me I commit to github.com/cavneb I work for Instructure I run the EmberSLC meetup I actually don’t even have a cat Questions?