An example of a unit test (jasmine) of a service and controller

home_ctlr.js

// You would still need to define this in a module
// for it to work in a real world environment.

this.HomeCtlr = function($scope, Project) {

  $scope.search = function(query) {
    $scope.projects = Project.search({query: query});
  };

};

home_ctlr_spec.js

describe('HomeController', function() {
  var home;

  beforeEach(function() {
    home = module('home');
  });

  var $httpBackend, $scope, homeController;

  beforeEach(inject(function(_$httpBackend_, $rootScope, _$controller_, _$resource_, Project) {
    $httpBackend = _$httpBackend_;

    $scope = $rootScope;
    var $controller = _$controller_;

    homeController = function() {
      return $controller(this.HomeCtlr, { '$scope' : $scope });
    };
  }));

  describe('$scope.search', function() {
    it('should get results', function() {
      $httpBackend.expectGET('/api/v1/search/Project.json').respond({projects: []});
      homeController();
      $scope.search('Project');
      $httpBackend.flush();

      expect($scope.projects).toBeDefined();
    });
  });
});

project.js

// This is the service that is used in home_ctlr. It would still need 
// to be defined to work in a real world environment

this.Project = function($resource) {
  return $resource('/api/v1/projects.:format', { format: 'json'}, {
    search: {
      method: 'GET',
      url: '/api/v1/search/:query.:format',
      params: {
        query: '@query'
      }
    }
  });
};