Could you provide some guidance on how to properly test this AngularJS code using Jasmine?

Question

Could you provide some guidance on how to properly test this AngularJS code using Jasmine?

Here is a simple function I have:

wpApp = angular.module('wpApp', ['ngRoute']);

wpApp.controller("ctrlr", function($scope) {
    $scope.message = 'This is the page';
});

I am attempting to test it using Jasmine with this spec:

describe("Testing suite", function() {
    var scope;
    beforeEach(inject(function($rootScope, $controller) {
        scope = $rootScope.$new();
        $controller("controller", {
            $scope: scope
        });
    }));

    it("should display the default message", function() {
        return expect(scope.message).toBe('This is the page');
    });
});

Unfortunately, it is not functioning as expected, as the actual value is returning as Undefined.

Since I am new to AngularJS and the concept of injection, I have been researching on StackOverflow, the documentation, and various tutorials, but I am still unable to pinpoint the exact issue.

Hopefully, the solution is a simple one. Can someone offer guidance on what adjustments I need to make to my spec?

javascript angularjs jasmine

Answer 1

Answer №1

To properly set up your module:

beforeEach(loadModule('wpApp'));

Next, make sure to load the correct controller:

$controller("ctrlr", {
    $scope: scope
});

Full code snippet:

describe("Testing suite", function() {
  var scope;

  beforeEach(loadModule('wpApp'));

  beforeEach(inject(function($rootScope, $controller) {
    scope = $rootScope.$new();
    $controller("ctrlr", {
      $scope: scope
    });
  }));

  it("should display the default message", function() {
    return expect(scope.message).toBe('This is the page');
  });
});

Alternatively:

describe("Testing suite", function() {

  var $scope;

  beforeEach(function() {

    loadModule('wpApp');

    inject(function($rootScope, $controller) {

      $scope = $rootScope.$new();

      $controller("ctrlr", {
        $scope: $scope
      });
    })
  });

  it("should display the default message", function() {
    return expect($scope.message).toBe('This is the page');
  });
});

Answer 2

To properly set up your module:

beforeEach(loadModule('wpApp'));

Next, make sure to load the correct controller:

$controller("ctrlr", {
    $scope: scope
});

Full code snippet:

describe("Testing suite", function() {
  var scope;

  beforeEach(loadModule('wpApp'));

  beforeEach(inject(function($rootScope, $controller) {
    scope = $rootScope.$new();
    $controller("ctrlr", {
      $scope: scope
    });
  }));

  it("should display the default message", function() {
    return expect(scope.message).toBe('This is the page');
  });
});

Alternatively:

describe("Testing suite", function() {

  var $scope;

  beforeEach(function() {

    loadModule('wpApp');

    inject(function($rootScope, $controller) {

      $scope = $rootScope.$new();

      $controller("ctrlr", {
        $scope: $scope
      });
    })
  });

  it("should display the default message", function() {
    return expect($scope.message).toBe('This is the page');
  });
});

Could you provide some guidance on how to properly test this AngularJS code using Jasmine?

Answer №1

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