How to inject factory into unit test

I am trying to inject my factory into my unit test.

I have something in my file like

//inside my 'testCtrl' I have

$scope.getProduct = function() {
    //other codes..
    myFactory.getProduct()
       .then(function(obj){
           $scope.product.id = obj.id;
       })
}

my factory file

angular.module('myApp').factory('myFactory', function($http, $q) {
    //codes...
}) 

my test file.

describe('unit test here', function(){
    beforeEach(module('myApp'));
    beforeEach(module('myFactory'));
    beofreEach(inject(function(_$controller_, _$rootscope_) {
        scope._$rootScope.$new();

        testCtrl = _$controller_('testCtrl', {
            $scope:scope 
        })
    })

   //I got a Module 'plannerFactory' is not available error
   //How do I inject myFactory into my test file here and how do I       //use it?

})

I have been searching on the web and couldn't find any useful info. Could anyone help me about it? Thanks a lot!