Unit testing call a function of a controller with Karma and Jasmine - angularjs

Question

This is my angular controller :-
angular.module('authoring-controllers', []).
controller('NavCtrl', function($scope, $location, BasketNavigationService) {
$scope.test= function() {
$scope.testVar = BasketNavigationService.showBasketList();
};
});
TEST class
describe('NavCtrl', function() {
var scope, $location, createController;
beforeEach(inject(function ($rootScope, $controller, _$location_) {
$location = _$location_;
scope = $rootScope.$new();
createController = function() {
return $controller('NavCtrl', {
'$scope': scope
});
};
}));
it('should create $scope.testVar when calling test',
function() {
expect(scope.testVar).toBeUndefined();
scope.test();
expect(scope.testVar).toBedefined();
});
});
Getting an error when i run that test case :- scope.test() is undefined..
If i removed BasketNavigationService functionality from controller then it is working..
Please help me to solve that karma test case.

Answer 1

$scope.showBasketList is not a function that can be invoked with $scope.showBasketList(). It is a variable that is equal to the return value of BasketNavigationService.showBasketList().
If you want to reference that function instead it should be $scope.showBasketList = BasketNavigationService.showBasketList; in your controller.

Answer 2

here is the working demo , hope it helps. problem was with injecting the dependencies.
//--- CODE --------------------------
(function(angular) {
// Create module
var myApp = angular.module('myApp', []);
// Controller which counts changes to its "name" member
myApp.controller('MyCtrl', ['$scope', 'BasketNavigationService',
function($scope, BasketNavigationService) {
$scope.test = function() {
$scope.testVar = BasketNavigationService.showBasketList();;
};
}
]);
})(angular);
// ---SPECS-------------------------
describe('myApp', function() {
var scope,
controller;
beforeEach(function() {
module('myApp');
});
describe('MyCtrl', function() {
beforeEach(inject(function($rootScope, $controller) {
scope = $rootScope.$new();
controller = $controller('MyCtrl', {
'$scope': scope,
'BasketNavigationService': {
showBasketList: function() {
return null;
}
}
});
}));
it('should create $scope.testVar when calling test',
function() {
expect(scope.testVar).toBeUndefined();
scope.test();
// scope.$digest();
expect(scope.testVar).toBeDefined();
});
});
});
// --- Runner -------------------------
(function() {
var jasmineEnv = jasmine.getEnv();
jasmineEnv.updateInterval = 1000;
var htmlReporter = new jasmine.HtmlReporter();
jasmineEnv.addReporter(htmlReporter);
jasmineEnv.specFilter = function(spec) {
return htmlReporter.specFilter(spec);
};
var currentWindowOnload = window.onload;
window.onload = function() {
if (currentWindowOnload) {
currentWindowOnload();
}
execJasmine();
};
function execJasmine() {
jasmineEnv.execute();
}
})();
<script src="http://jasmine.github.io/1.3/lib/jasmine.js"></script>
<script src="http://jasmine.github.io/1.3/lib/jasmine-html.js"></script>
<script src="https://code.angularjs.org/1.2.9/angular.js"></script>
<script src="https://code.angularjs.org/1.2.9/angular-mocks.js"></script>
<link href="http://jasmine.github.io/1.3/lib/jasmine.css" rel="stylesheet" />
fiddle : http://jsfiddle.net/invincibleJai/pf1deoom/1/