I am currently facing an issue with the error message "ReferenceError: items is not defined" and I am struggling to find a solution on how to properly test my data

Seeking assistance on adding jasmine taste to my factory code. Here is the snippet...

---dataService.js---

angular.module('angularAppApp')
   .factory('dataService', function($resource){
      return $resource(`http://...:3100/posts/:id`, null,
         {
           'update': { method:'PUT' }
      });
})

---onePostCtrl.js---

angular.module('angularAppApp')
   .controller('onePostCtrl', ['$scope', '$http', '$routeParams', 'dataService',
     function ($scope, $http, $routeParams, dataService) {
         dataService.get ({id: $routeParams.postId}).$promise.then(function(data){
             $scope.postInfo = data;
         });
       }]);

-- main container ---

angular.module('angularAppApp').controller('postCtrl', ['$scope','$http', 'ngDialog', 'dataService','trimService', function ($scope, $http, ngDialog, dataService, trimService) {
//save data to remote server from loaded pop-up
$scope.savePost = function(){
 $scope.addFormData.date = $scope.formated_date;
      dataService.save($scope.addFormData, function() {
            loadData();
      });
      ngDialog.closeAll();
};
//delete post from remote server
$scope.deletePost = function(article) {
      dataService.delete({ id:  article._id }, function() {
            loadData();
  });
};
//edit post from remote server
$scope.updatePost = function (article) {
     dataService.update({ id:  article._id},article).$promise.then(function() {
            loadData();
      });
      ngDialog.closeAll();
}

}]);

--- mock data ---

angular.module('mock', []).value('items', [{ ... }]

---At index.html I am have loaded mocks scripts---

 src="bower_components/angular-mocks/angular-mocks.js"
 src="mosk_data/mocks.module.js"

--Jasmine tests is ...

describe("factory of dataService", function (){  
 var $httpBackend, $http, $q, factory;
  beforeEach(module("angularAppApp"));
  beforeEach(module('mock'));
    beforeEach(function(){

     inject(function($injector, _$httpBackend_,_$http_,_$q_){
       $q = _$q_;
       $http = _$http_;
       $httpBackend = _$httpBackend_;
       $httpBackend.when('GET', '/items').respond(items);
       factory = $injector.get('dataService');
    });
afterEach(function () {
     $httpBackend.verifyNoOutstandingExpectation();
     $httpBackend.verifyNoOutstandingRequest();
 });
it("Data service", function(){
});

});

Encountering the error "ReferenceError: items is not defined" and seeking solutions for testing my dataService.

Answer №1

Don't forget to properly inject your value and assign it to a variable within the tests. Here's a suggested approach:

var $httpBackend, $http, $q, factory, items; //declare variable items here (or you can do it inside beforeEach)
  beforeEach(module("angularAppApp"));
  beforeEach(module('mock'));
    beforeEach(function(){

     inject(function($injector, _$httpBackend_,_$http_,_$q_, _items_){
       $q = _$q_;
       $http = _$http_;
       //inject the value and assign it to your variable
       items = _items_
       $httpBackend = _$httpBackend_;
       $httpBackend.when('GET', '/items').respond(items);
       factory = $injector.get('dataService');
    });

The Reference error you encountered was due to the absence of a defined variable named items. While you did define an angular value with the name items, it functions differently - consider it as residing "somewhere inside angular guts" and requiring injection before being utilized as a regular variable.

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