spec/csrftoken.test.js

(function () {
  'use strict';
  describe('The xos.helper module', function(){
    let SetCSRFToken, httpProviderObj, httpBackend, http, cookies;

    const fakeToken = 'aiuhsnds98234ndASd';

    beforeEach(function() {
      module(
        'xos.helpers',
        function ($httpProvider) {
          //save our interceptor
          httpProviderObj = $httpProvider;
        }
      );

      inject(function (_SetCSRFToken_, _$httpBackend_, _$http_, _$cookies_) {
        SetCSRFToken = _SetCSRFToken_;
        httpBackend = _$httpBackend_;
        http = _$http_;
        cookies = _$cookies_

        // mocking $cookie service
        spyOn(cookies, 'get').and.returnValue(fakeToken);
      });

    });

    describe('the SetCSRFToken', () => {
      it('should exist', () => {
        expect(SetCSRFToken).toBeDefined();
      });

      it('should attach token the request', (done) => {
        httpBackend.when('POST', 'http://example.com', null, function(headers) {
          expect(headers['X-CSRFToken']).toBe(fakeToken);
          done();
          return headers;
        }).respond(200, {name: 'example' });

        http.post('http://example.com');

        httpBackend.flush();
      });
    });
    
    it('should set SetCSRFToken interceptor', () => {
      expect(httpProviderObj).toBeDefined();
      expect(httpProviderObj.interceptors).toContain('SetCSRFToken');
    });

  });
})();