Error: The object being referenced (scope.awesomeThings) is undefined and unable to be evaluated

Each time I run the grunt test command, I encounter this error. I set up a project using yo angular and attempted to execute the example code provided in Yeoman's scaffold. Something seems to have gone awry here - below is the code snippet that I tried testing.

controller/main.js

angular.module('brandPortalApp')
  .controller('MainCtrl', function ($scope) {
    $scope.awesomeThings = [
      'HTML5 Boilerplate',
      'AngularJS',
      'Karma'
    ];
  });

test/controllers/main.js

'use strict';

describe('Controller: MainCtrl', function () {
  // load the controller's module
  beforeEach(module('brandPortalApp'));
  var MainCtrl,
  scope;

  // Initialize the controller and a mock scope
  beforeEach(inject(function ($controller, $rootScope) {
    scope = $rootScope.$new();
    MainCtrl = $controller('MainCtrl', {
      $scope: scope
    });
  }));

  it('should attach a list of awesomeThings to the scope', function () {
    expect(scope.awesomeThings.length).toBe(3);
  });
});

karma.conf.js

// Karma configuration
// http://karma-runner.github.io/0.12/config/configuration-file.html
// Generated on 2016-05-27 using
// generator-karma 0.8.3

module.exports = function(config) {
  'use strict';

  config.set({
    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // base path, that will be used to resolve files and exclude
    basePath: '../',

    // testing framework to use (jasmine/mocha/qunit/...)
    frameworks: ['jasmine'],

    // list of files / patterns to load in the browser
    files: [
      'bower_components/angular/angular.js',
      'bower_components/angular-mocks/angular-mocks.js',
      'bower_components/angular-animate/angular-animate.js',
      'bower_components/angular-aria/angular-aria.js',
      'bower_components/angular-cookies/angular-cookies.js',
      'bower_components/angular-messages/angular-messages.js',
      'bower_components/angular-resource/angular-resource.js',
      'bower_components/angular-route/angular-route.js',
      'bower_components/angular-sanitize/angular-sanitize.js',
      'bower_components/angular-touch/angular-touch.js',
      'app/scripts/**/*.js',
      'test/mock/**/*.js',
      'test/spec/**/*.js'
    ],

    // list of files / patterns to exclude
    exclude: [],

    // web server port
    port: 8080,

    // Start these browsers, currently available:
    // - Chrome
    // - ChromeCanary
    // - Firefox
    // - Opera
    // - Safari (only Mac)
    // - PhantomJS
    // - IE (only Windows)
    browsers: [
      'PhantomJS'
    ],

    // Which plugins to enable
    plugins: [
      'karma-phantomjs-launcher',
      'karma-jasmine'
    ],

    // Continuous Integration mode
    // if true, it capture browsers, run tests and exit
    singleRun: false,

    colors: true,

    // level of logging
    // possible values: LOG_DISABLE || LOG_ERROR || LOG_WARN || LOG_INFO || LOG_DEBUG
    logLevel: config.LOG_INFO,

    // Uncomment the following lines if you are using grunt's server to run the tests
    // proxies: {
    //   '/': 'http://localhost:9000/'
    // },
    // URL root prevent conflicts with the site root
    // urlRoot: '_karma_'
  });
};

In Command Line

When I was "connect:test" (connecting), the task started connecting the web server at http://localhost:9001

After initiating "karma:unit" (executing karma), I received WARN [watcher]: The pattern "/Users/kiwitech/Brand-Portal/test/mock/**/*.js" does not match any file. INFO [karma]: Karma v0.13.22 server began operating from http://localhost:8080/ INFO [launcher]: Starting browser PhantomJS INFO [PhantomJS 2.1.1 (Mac OS X 0.0.0)]: Connection established on socket /#NDwIB4AQl7giaVxJAAAA with id 29519679 PhantomJS 2.1.1 (Mac OS X 0.0.0) Controller: MainCtrl should attach a list of awesomeThings to the scope FAILED forEach@/Users/kiwitech/Brand-Portal/bower_components/angular/angular.js:322:24 loadModules@/Users/kiwitech/Brand-Portal/bower_components/angular/angular.js:4548:12 createInjector@/Users/kiwitech/Brand-Portal/bower_components/angular/angular.js:4470:30 workFn@/Users/kiwitech/Brand-Portal/bower_components/angular-mocks/angular-mocks.js:2464:60 /Users/kiwitech/Brand-Portal/bower_components/angular/angular.js:4588:53 TypeError: undefined is not an object (evaluating 'scope.todos') in /Users/kiwitech/Brand-Portal/test/spec/controllers/main.js (line 20) /Users/kiwitech/Brand-Portal/test/spec/controllers/main.js:20:17 PhantomJS 2.1.1 (Mac OS X 0.0.0): Executed 1 of 1 (1 FAILED) ERROR (0.005 secs / 0.015 secs) Warning: Task "karma:unit" failed. Use --force to continue.

Terminated due to the presence of warnings.

I searched for other solutions to address this issue but none of them seem to apply in this case.

Your assistance is greatly appreciated!

Answer №1

I'm not entirely sure if you've resolved the issue, but if not, it might be related to paths in karma.conf.js. I faced a similar problem with my angularApp.

Without knowing your architecture, I conducted a test on my own (a bit messy and unoptimized) where paths should align with your specific setup.

The structure of jasmineApp folder:

├── app
│   └── scripts
├── bower_components
│   ├── angular
│   ├── angular-animate
│   ├── angular-aria
│   ├── angular-cookies
│   ├── angular-messages
│   ├── angular-mocks
│   ├── angular-resource
│   ├── angular-route
│   ├── angular-sanitize
│   └── angular-touch
└── test
    └── controllers

The testing file is located at test/controllers/main.js:

'use strict';

  // Running the initial simple test to ensure Karma is working correctly

  describe('Simple test', function(){
    it("a is indeed 'hello world'", function(){
      var a = "Hello world";
      expect(a).toBe('Hello world');
    });
  });

  describe('Controller: MainCtrl', function () {

    // Loading the controller's module
    beforeEach(module('brandPortalApp'));

    var MainCtrl,
      scope;

    // Initializing the controller and creating a mock scope
    beforeEach(inject(function ($controller, $rootScope) {
      scope = $rootScope.$new();
      MainCtrl = $controller('MainCtrl', {
        $scope: scope
      });
    }));

    it('should have a list of awesomeThings attached to the scope', function () {
      expect(scope.awesomeThings.length).toBe(3);
    });
  });

The controller file can be found at app/controller/main.js:

angular.module('brandPortalApp',[])
console.log('loaded')
angular.module('brandPortalApp')
  .controller('MainCtrl', function ($scope) {
    $scope.awesomeThings = [
      'HTML5 Boilerplate',
      'AngularJS',
      'Karma'
    ];
  });

Here is a snippet from karma.config.js:

// Karma configuration
// Configurations here...
module.exports = function(config) {
  'use strict';
  
  // Your config settings...

};

After running the tests successfully, make sure the path for main.js file in karma.config.js is correct.

If the path is incorrect like this:

'app/scripts/**/*.js', // wrong path

You will encounter errors like these:

Error messages here...

I hope this helps in resolving your issue.

Answer №2

I encountered a similar issue, but was able to resolve it by adjusting the file paths and list of javascript files in the karma.conf.js configuration.

files: [
    'test/libs/jquery.min.js',
    'test/libs/angular.js',
    'test/libs/angular-mocks.js',
    'test/libs/angular-animate.js',
    'test/libs/angular-cookies.js',
    'test/libs/angular-resource.js',
    'test/libs/angular-route.js',
    'test/libs/angular-touch.js',
    'test/libs/angular-sanitize.js',
    'app/scripts/app.js',
    'app/scripts/**/*.js',
    'test/spec/**/*.js'
],

Upon reviewing your code compared to mine, I believe that explicitly referencing your app using a direct path (such as 'app/scripts/app.js' in my case) may be beneficial.

Best of luck!

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

How can I prevent tinymce from stripping out my <link> tag?

I'm having an issue with tinymce. dd<script id="kot-id" src="***insert link here***"></script><div id="kotcalculator"></div><link rel="stylesheet" href="***insert link here***" type="text/css" media="screen" /> It seems ...

A specific div remains in place as the user scrolls

Imagine a div that is positioned 60px from the top of the screen. What if, as you scroll down, it stops when it reaches 10px from the top and remains there for the rest of your scrolling session? And then, when you scroll back up, it goes back to its ori ...

Encountering numerous errors when importing Wallet Connect / Web3 Provider

I encountered some challenges when trying to incorporate the "@walletconnect/web3-provider" JS library into my project. After installing the library along with the Web3 module using the following command: npm install --save web3 @walletconnect/web3-provide ...

Angular routes are failing to update the view even after attempting to refresh

I am facing an issue while trying to develop an angular app where the child state is not loading properly. app.config(function ($stateProvider, $urlRouterProvider) { $urlRouterProvider.otherwise("/"); $stateProvider .state('home& ...

Utilizing MongoDb and Node.js for efficient data input

I am currently facing an issue while trying to input data into a mongodb collection using node.js. I believe I have the necessary access to the collection in question. var collection = db.collection("whatsGoingOnEvents"); if(collection){ console.log("hitt ...

Unable to locate the JavaScript/jQuery key

Struggling with a dictionary in JavaScript being passed to a function in Django. Despite the key existing, I'm getting an error saying 'key message not found'. As a newbie in Javascript and JQuery, I must have made a simple mistake somewhere ...

Submitting data with AJAX to a NodeJS server

I have experience creating basic web applications where data is transmitted via HTTP parameters. However, I am currently attempting to send data from the client-side that includes an array (a list of ingredients for a recipe) and potentially a user-uploade ...

How do you trigger a function in a child component that was imported when a parent element is clicked?

Is it possible to access and call a function in an imported component from the "parent element"? I have multiple modules that I want to include dynamically in my app. I thought that if I import a component like Header in my main App.vue file, it would reco ...

Issues with Javascript functionality on aspdotnetstorefront site

Lately, I've been facing some challenges with my Javascript and jQuery codes when trying to implement them in the storefront. Despite attempting different methods to create a slider, none seem to work within the store environment - even though they fu ...

React Native: Why is useState setter not causing a re-render?

As a beginner in react and javascript, I am facing an issue with showing an ActivityIndicator while logging in a user. The setIsLoading method doesn't seem to change the state and trigger a rerender. When the handleLogin method is called on a button c ...

Tips for resolving CORS problems when trying to pull data from an API by utilizing jQuery AJAX and a JAVA backend

Currently, I am working on developing a front-end application to display data fetched from an API. This particular API was created using JAVA and Swagger.io by an android engineer. At the moment, the API does not have any authentication mechanism in place, ...

Is it impossible to extend a Typescript class with an overriding method that uses a different parameter?

I am currently working on a Typescript MVC app and encountering an issue. When I try to extend my BaseController and override the ajaxMethod with different parameters, my transpiler throws an error. Any help would be appreciated. Below is the code snippet ...

Mobile Image Gallery by Adobe Edge

My current project involves using Adobe Edge Animate for the majority of my website, but I am looking to create a mobile version as well. In order to achieve this, I need to transition from onClick events to onTouch events. However, I am struggling to find ...

Utilizing arrays dynamically to generate data for a bar chart display in JavaScript

I'm currently working on generating a bar stack graph using the chart.js JavaScript library. My JavaScript array contains the following data: 0: {labels: "01/01/2020 00:00:00", data: 7433, category: "A"} 1: {labels: "01/01/2020 00:00:00", data: 774, ...

Updating the index of an array in MongoDB using Node.js proves to be a challenging task

Currently, I am working on creating an API for a bus ticketing system. However, I am facing difficulties in getting it to function properly in Node.js. [ { "id":1, "hour" : "7:30am" , "seats" : [ 0 , 0, 0, 0, 0 , 0, 0, 0, 0 , 0 ...

Using ng-repeat with valid json does not function properly

When receiving a response from Java servlet via Angular, the request content is in 'text/html' format and I utilized 'data.split' to process it: d = response.data.replace(/^\s+|\s+$/g, ''); // remove /r/n data = d.s ...

The byte order of integer literals in JavaScript

When writing the following line in Javascript: var n = 0x1234, is it always true that n == 4660? This question could also be phrased as follows: Does 0x1234 represent a series of bytes with 0x12 as the first byte and 0x34 as the last byte? Or does 0x1234 r ...

A guide to resolving the error "Unable to find 'require' in vuejs"

I am currently working on a project using vuejs and firebase. I encountered an issue while trying to import firestore. When I accessed my page, I saw this error message in the console: ReferenceError: require is not defined I attempted to place the import ...

Error in HTML: The AgGrid component is missing the required 'col' attribute

Initially, I worked with the 2.3.5 version of Ag-Grid which had a "col" attribute showing the relative index of the column for each cell element. The "row" attribute still remains unchanged. However, after upgrading to version 4.0.5, the "col" attribute ...

Tips for keeping components mounted despite changes in the path

How can I maintain state in React routes to prevent unmounting when switching between them? In my application, it's crucial to keep the state intact during route changes. When changing routes, the respective components mount and unmount. How can this ...