exampel unit test

'use strict';

describe('Offers : controller', function(){

  beforeEach(module('client'));

  var $scope,
      genericService;


  beforeEach(inject(function($rootScope, _genericService_, $controller) {

    $scope = $rootScope.$new();
    var createController = function() {
      return $controller('OffersCtrl', {
        $scope: $scope,
        genericService : genericService
      });
    };

    controller = createController();

  }));

  it('should have a fixed slider value', function () {
    expect($scope.sliderValue).toEqual(4600);
  });

  
});

//
// The error I get is
// Error: [$injector:unpr] Unknown provider: genericServiceProvider <- genericService
//