Exploring Karma and Jasmine for Testing Angular Controllers Module

Question

Exploring Karma and Jasmine for Testing Angular Controllers Module

In an attempt to test my application, I have each controller defined in its own module rather than as a controller of the main app module, and then loaded as a dependency of the main app module. While running a test to check if the loginController is defined using Karma/Jasmine, I encountered the following output:

'Expected undefined to be defined.'

edit

After updating login.controller.spec and switching the Karma browser to Chrome for more useful debug information, I encountered an error related to a factory added to $httpProvider.interceptors in the main app file:

Unknown provider: authFactoryProvider <- authFactory <- $http <- $translateStaticFilesLoader <- $translate

Similar issues were resolved by including angular-translate-loader-static-files.js, which is loaded when Karma runs:

DEBUG [web-server]: serving (cached): /path/to/my/app/bower_components/angular-translate-loader-static-files/angular-translate-loader-static-files.js

How can I address these dependency issues with Karma?

index.js

'use strict';

angular.module('app',
    [
    //'mockBackend', //uncomment when loading mock backend
    'ngAnimate',
    'ngCookies',
    'ngTouch',
    'ngSanitize',
    'ngResource',
    'ui.bootstrap',
    'ui.router',
    'ui.router.stateHelper',
    'pascalprecht.translate',
    'utilsModule',
    'loginModule',
    'vsmsPackageModule',
    'vsmsCampaignModule',
    'vdmsCampaignModule',
    'vdmsDashboardModule',
    'daterangepicker',
    'ui.event',
    'idmAdminModule',
    'helpdeskModule',
    'ncy-angular-breadcrumb',
    'rzModule',
    'vsmsDashboardModule',
    'highcharts-ng',
    'permission',
    'dndLists'
    ])
  .config(function ($stateProvider, $urlRouterProvider, $httpProvider, $locationProvider, $translateProvider, $breadcrumbProvider, $compileProvider) {
    // Configuration settings here
   })

login.module.js

angular.module('loginModule', []);

login.controller.js

  angular.module('loginModule')
  .controller('loginController', login);

  // Controller function definition

Attempting to test for the existence of the controller, I am stuck at the error:

Expected undefined to be defined.

login.controller.spec.js

describe('loginController', function() {
    // Test cases here
});

unit-tests.js

'use strict';

var gulp = require('gulp');

// gulp tasks for running tests

javascript angularjs jasmine karma-jasmine

Answer 1

Answer №1

Please look at the provided link as the question has already been answered.

How to inject controller dependencies in Jasmine tests?

It seems that loginController dependencies are not being passed in your unit test.

Remember, the second parameter of $controller is where controller dependencies should be passed.

An empty dependency is being passed in this line: $controller('loginController', {});

Ensure that all the required modules are loaded before testing loginController.

I have made some modifications to your code. I hope it resolves the issue.

'use strict';

describe('loginController', function() {

  beforeEach(module('loginModule'));

  var loginController;

  beforeEach(inject(function($controller, _$log_, _$uibModal_, _$rootScope_, _storageFactory_, _loginFactory_, _$state_, _RoleStore_, _PermissionStore_ ){
    scope = _$rootScope_.$new();
    loginController = $controller('loginController', 
    {   // all dependencies must be passed in the correct order
        '$log' : _$log_,
        '$uibModal' : _$uibModal_,
        '$rootScope' : _$rootScope_,
        'storageFactory' : _storageFactory_,
        'loginFactory': _loginFactory_,
        '$state': _$state_,
        'RoleStore': _RoleStore_,
        'PermissionStore': _PermissionStore_
    }, 
    {});
  }));

  it('should be defined', function() {
    expect(loginController).toBeDefined();
  });

});

Answer 2

Please look at the provided link as the question has already been answered.

How to inject controller dependencies in Jasmine tests?

It seems that loginController dependencies are not being passed in your unit test.

Remember, the second parameter of $controller is where controller dependencies should be passed.

An empty dependency is being passed in this line: $controller('loginController', {});

Ensure that all the required modules are loaded before testing loginController.

I have made some modifications to your code. I hope it resolves the issue.

'use strict';

describe('loginController', function() {

  beforeEach(module('loginModule'));

  var loginController;

  beforeEach(inject(function($controller, _$log_, _$uibModal_, _$rootScope_, _storageFactory_, _loginFactory_, _$state_, _RoleStore_, _PermissionStore_ ){
    scope = _$rootScope_.$new();
    loginController = $controller('loginController', 
    {   // all dependencies must be passed in the correct order
        '$log' : _$log_,
        '$uibModal' : _$uibModal_,
        '$rootScope' : _$rootScope_,
        'storageFactory' : _storageFactory_,
        'loginFactory': _loginFactory_,
        '$state': _$state_,
        'RoleStore': _RoleStore_,
        'PermissionStore': _PermissionStore_
    }, 
    {});
  }));

  it('should be defined', function() {
    expect(loginController).toBeDefined();
  });

});

Answer 3

Answer №2

Your login.module.js file is causing the issue at hand.

When defining the loginModule, make sure to include ui.bootstrap and ui.router as dependencies. Without these, the loginController won't be able to access $uibModal and $state.

Here is how your loginModule should be defined:

angular.module('loginModule', ['ui.bootstrap', 'ui.router']);

PS: I'm assuming that storageFactory, loginFactory, RoleStore, and PermissionStore are all defined within the loginModule itself.

I hope this information proves helpful!

Answer 4

Your login.module.js file is causing the issue at hand.

When defining the loginModule, make sure to include ui.bootstrap and ui.router as dependencies. Without these, the loginController won't be able to access $uibModal and $state.

Here is how your loginModule should be defined:

angular.module('loginModule', ['ui.bootstrap', 'ui.router']);

PS: I'm assuming that storageFactory, loginFactory, RoleStore, and PermissionStore are all defined within the loginModule itself.

I hope this information proves helpful!

Exploring Karma and Jasmine for Testing Angular Controllers Module

Answer №1

Answer №2

Similar questions

Utilizing the onFocus event in Material UI for a select input: A comprehensive guide

Encountering a post route error when utilizing async await has hindered my ability to add a new product

Implementing dynamic props in Vue2 component by passing arbitrary named variables

Error message: The function send() cannot be applied to the object received by request.post() in Node

Ways to identify when a person has scrolled a specific distance

Exploring the combined application of the AND and OR operators in JavaScript programming

Is it possible to access Firebase data in Vue.js, with or without Vuefire, using a router parameter before the DOM is rendered?

What is the best way to update the value of a preact signal from a different component?

How to use JavaScript regular expressions to verify that an input contains more than zero characters

Navigating through a complex nested JSON structure using Node.js

Error in AngularJS: The argument 'fn' is not a function and is undefined

ways to halt a noise once an animation is complete

Organize various base arrangements within Angular version 2

What is the best way to implement an automatic logout feature in PHP?

What is the best way to showcase a PDF in Django that is saved as a blob in a MySQL database?

Avoiding to store scope changes within an angular modal is recommended

When attempting to call a script function in PHP and expecting a return value, an error was encountered: "Uncaught SyntaxError

Learn the method of inserting text at the current cursor position within a textarea using AngularJS

tips for efficiently using keyboard to navigate through tabs in an unordered list

Transferring a Sharepoint 2010 List Item between folders