I make one controller in Angularjs and try to test that controller using Jasmine. I got this error Cannot read property 'message' of undefined why ?
Here is my code.
controller
(function(){
'use strict';
angular.module('app.home').controller('homeCntrl',homeCntrl);
function homeCntrl(){
var home=this;
home.clickbtn=function(){
home.message='test';
alert(home.message)
}
}
})();
Testing
(function(){
'use strict';
describe('http controller test', function() {
var $rootScope,
$scope,
controller,
$q,
$httpBackend;
beforeEach(function() {
module('app');
inject(function($injector) {
$rootScope = $injector.get('$rootScope');
$scope = $rootScope.$new();
controller = $injector.get('$controller')('homeCntrl', {
$scope: $scope
})
})
})
describe('Init value', function() {
it('check name value', function() {
expect(controller.message).toBeUndefined();
})
})
it('it should be true', function() {
expect(true).toBeTruthy();
})
})
})();
any update ?durning testing I got this error .. ? can we do testing of this controller ?Every thing is fine on angular js code problem is on test code..only check appspec.js
Just an hint
app
(function() {
'use strict';
function HomeController() {
var home = this;
home.title = 'Home';
}
angular.module('home.controllers', [])
.controller('HomeController', HomeController);
})();
test
'use strict';
describe('home controller', function() {
var $controller;
var scope;
beforeEach(module('home.controllers'));
beforeEach(inject(function(_$controller_, $rootScope) {
$controller = _$controller_;
scope = $rootScope.$new();
$controller('HomeController as home', {$scope: scope});
}));
it('should have text = "Home"', function() {
expect(scope.home.title).toEqual('Home');
});
});
in your case the test should be like
scope.home.clickbtn();
expect(scope.home.message).toEqual('test');
Take a look at http://www.bradoncode.com/tutorials/angularjs-unit-testing/ to master unit test in angular
Related
I'm getting the below error while doing karma/jasmine unit testing for both the test cases.I tried by modifying the controller by adding angular.controller in the spec file even then it is not working.Is there any way to fix?
TypeError: undefined is not a constructor (evaluating 'angular.controller('myView')')
myView.spec.js
// myView.spec.js
(function(){
describe('controller: myView', function(){
var module,myView,$q, $rootScope, $scope, uiGridConstants, overviewService, commonService, $timeout;
beforeEach(function() {
module = angular.module('app.myView');
controller= angular.controller('myView')
});
beforeEach(inject(function ($controller, _$q_, _$rootScope_, _$timeout_) {
$q= _$q_;
$rootScope = _$rootScope_;
$timeout= _$timeout_;
myView= $controller('myView', {
$q : _$q_,
$rootScope : _$rootScope_,
$timeout: _$timeout_
});
}));
describe("myViewto be defined", function() {
it("should be created successfully", function () {
expect(controller).toBeDefined();
});
it("overview should be defined", function () {
expect(myView()).toBeDefined();
});
});
});
})();
and myView.js
(function() {
'use strict';
angular
.module('app.myView')
.controller('myView', myView);
function myView($q, $rootScope, $scope, uiGridConstants, myViewService, commonService, $timeout) {
var vm = this;
vm.callFeedback = function () { };
})();
Sharing following code
// myView.spec.js
(function(){
describe('myView', function(){
var $controller, myView;
//we use angular-mocks to specify which modules we'll need within this
//test file.
beforeEach(angular.mock.module('app.myView'));
// Inject the $controller service to create instances of the controller
//(myView) we want to test
beforeEach(inject(function(_$controller_) {
$controller = _$controller_;
myView = $controller('myView', {});
}));
// Verify our controller exists
it('should be defined', function() {
expect(myView).toBeDefined();
});
});
})();
We set _$controller_to the $controller variable we created and then create an instance of our controller by calling $controller('myView', {}). The first argument is the name of the controller we want to test and the second argument is an object of the dependencies for our controller.
You should pass the injected parameters to your controller as shown:
(function() {
'use strict';
angular
.module('app.myView')
.controller($q,$rootScope,$scope,uiGridConstants,'myView', myView);
function myView($q, $rootScope, $scope, uiGridConstants, myViewService, commonService, $timeout) {
var vm = this;
vm.callFeedback = function () { };
})();
Also make sure that your module has all the necesary dependences in the angular.module('app.myView',['uiGridConstants', ...'etc']);
I am trying to make a small test work that validates wether the controller is defined.
The error I am receiving is:
myApp.orders module Order controller should .... FAILED
Error: [$injector:unpr] Unknown provider: $scopeProvider <- $scope <- OrdersCtrl
Reading similar errors it has something to do with the dependencies, but I don't know what's wrong.
Controller:
'use strict';
angular.module('myApp.orders', ['ngRoute'])
.config(['$routeProvider', function($routeProvider) {
$routeProvider.when('/orders', {
templateUrl: 'orders/orders.template.html',
controller: 'OrdersCtrl'
});
}])
.controller('OrdersCtrl', function($scope, $location) {
$scope.changeView = function(view){
$location.path(view); // path not hash
}
});
Test:
'use strict';
describe('myApp.orders module', function() {
beforeEach(module('myApp.orders'));
describe('Order controller', function(){
it('should ....', inject(function($controller) {
//spec body
var OrdersCtrl = $controller('OrdersCtrl');
expect(OrdersCtrl).toBeDefined();
}));
});
});
This is because you are not passing the $scope variabl einside the controller when you are creating it in test. And the controller tries to define $scope.changeView, but it finds $scope as undefined.
You need to pass a $scope variable to the controller in your test.
var $rootScope, $scope, $controller;
beforeEach(function() {
module('myApp.orders');
inject(function (_$rootScope_, _$controller_) {
$rootScope = _$rootScope_;
$scope = _$rootScope_.$new();
$controller = _$controller_;
});
});
and in your test,
var OrdersCtrl = $controller('OrdersCtrl', { $scope: $scope });
Restructure your unit test slightly. We have a pattern where the controller is defined in the beforeEach() so it's ready for the test. You also need to import the controller you're testing:
import ControllerToTest from 'path/to/your/real/controller';
describe('myApp.orders module',() => {
let vm;
beforeEach(() => {
inject(($controller, $rootScope) => {
vm = $controller(ControllerToTest,
{
$scope: $rootScope.$new()
};
});
});
describe('Order Controller', () => {
it('should do something', () => {
expect(vm).toBeDefined();
});
});
});
Chaneg your controller like this
.controller('OrdersCtrl',['$scope', '$location', function($scope, $location) {
$scope.changeView = function(view){
$location.path(view); // path not hash
}
}]);
I am trying to test something pretty simple: a controller that calls a service that performs a http request.
Controller:
define(['module'], function (module) {
'use strict';
var MyController = function ($scope, MyService) {
$scope.testScope = 'karma is working!';
MyService.getData().then(function (data) {
$scope.result = data.hour
});
};
module.exports = ['$scope', 'MyService', MyController ];
});
Test:
define(['require', 'angular-mocks'], function (require) {
'use strict';
var angular = require('angular');
describe("<- MyController Spec ->", function () {
var controller, scope, myService, serviceResponse;
serviceResponse= {
id: 12345,
hour: '12'
};
beforeEach(angular.mock.module('myApp'));
beforeEach(inject(function (_$controller_, _$rootScope_, _MyService_, $q) {
scope = _$rootScope_.$new();
var deferred = $q.defer();
deferred.resolve(serviceResponse);
myService = _MyService_;
spyOn(myService, 'getData').and.returnValue(deferred.promise);
controller = _$controller_('MyController', {$scope: scope});
scope.$apply();
}));
it('should verify that the controller exists ', function() {
expect(controller).toBeDefined();
});
it('should have testScope scope equaling *karma is working*', function() {
expect(scope.testScope ).toEqual('karma is working!');
});
});
});
With the above, i get the error:
TypeError: 'undefined' is not an object (evaluating 'spyOn(myService, 'getData').and.returnValue')
Solved the question - was using Jasmine 1x.. Upgraded to 2.0 and works as expected
I am trying to set up a test for AngularJS app using Jasmine. It follows the docs but is a bit simpler. The fiddle has the following code:
angular.module('myapp', [])
.controller('MyCtrl', ['$scope', function MyCtrl($scope) {
$scope.greeting = "hello";
}]);
describe('My controller', function() {
var $controller;
module('myapp');
inject(function(_$controller_) {
$controller = _$controller_;
});
it('greets', function() {
var $scope = {};
var controller = $controller('MyCtrl', {
$scope: $scope
});
expect($scope.greeting).toEqual('hello');
})
});
And Jasmine reports an error: TypeError: $controller is not a function.
How to correct the code to get rid of this error and be able to test the controller?
You need to instantiate the app module and inject $controller for each test using beforeEach blocks:
describe('My controller', function() {
var $controller;
beforeEach(module('myapp'));
beforeEach(inject(function(_$controller_) {
$controller = _$controller_;
}));
it('greets', function() {
var $scope = {};
var controller = $controller('MyCtrl', {
$scope: $scope
});
expect($scope.greeting).toEqual('hello');
})
});
Demo: https://jsfiddle.net/f5ebb55f/6/
I have this simple controller, UserService is a service which return JSON
"use strict";
angular.module("controllers").controller('profileCtrl', ["$scope", "UserService",
function ($scope, UserService) {
$scope.current_user = UserService.details(0);
}
]);
I can not make the test. However this is my try
'use strict';
describe('profileCtrl', function () {
var scope, ctrl;
beforeEach(angular.mock.module('controllers'), function($provide){
$provide.value("UserService", {
details: function(num) { return "sdfsdf"; }
});
});
it('should have a LoginCtrl controller', function() {
expect(controllers.profileCtrl).toBeDefined();
});
beforeEach(angular.mock.inject(function($rootScope, $controller){
scope = $rootScope.$new();
$controller('profileCtrl', {$scope: scope});
}));
it('should fetch list of users', function(){
expect(controllers.scope.current_user.length).toBe(6);
expect(controllers.scope.current_user).toBe('sdfsdf');
});
});
The usage of $controller is correct, that's the way to instantiate a controller for a unit test. You can mock the UserService instance it gets directly in the $controller invocation.
You should be using its return value - this is the instance of your controller you're going to test.
You're trying to read stuff from controllers but its not defined anywhere in the test, I guess you're referring to the module.
This is how I would go about it + fiddle
//--- CODE --------------------------
angular.module('controllers', []).controller('profileCtrl', ["$scope", "UserService",
function ($scope, UserService) {
$scope.current_user = UserService.details(0);
}]);
// --- SPECS -------------------------
describe('profileCtrl', function () {
var scope, ctrl, userServiceMock;
beforeEach(function () {
userServiceMock = jasmine.createSpyObj('UserService', ['details']);
userServiceMock.details.andReturn('sdfsdf');
angular.mock.module('controllers');
angular.mock.inject(function ($rootScope, $controller) {
scope = $rootScope.$new();
ctrl = $controller('profileCtrl', {
$scope: scope,
UserService: userServiceMock
});
});
});
it('should have a LoginCtrl controller', function () {
expect(ctrl).toBeDefined();
});
it('should fetch list of users', function () {
expect(scope.current_user).toBe('sdfsdf');
});
});
You're welcome to change the fiddle online to see how it affects testing results.