java - How to test class with local connection to EJB -

i facing problem testing class has implemented local connection ejb in constructor. connection used inside constructor , sets private attributes of instantiated class.

myclass want test:

public class myclass {    private string myvalue;    public myclass() throws exception {     mybeanlocal local = ejbfactory.getlocal(mybeanlocal.class);     myvalue = local.fetchvalue();   }    public void processvalue() {     ... string magic should tested ...   }    public string getvalue() {     return myvalue;   }  } 

ejbfactory contains enhanced lookup (with caching) , can return local or remote connection (remote requires server location).

mybeanlocal interface

public interface mylocalbean {   public string fetchvalue(); } 

and junit class want test myclass.processvalue method:

public class myclasstest {    private myclass myclass;    @before   public void setup() {     myclass = new myclass();   }    @test   public void testprocessvalue() {     assert.assertequals(myclass.processvalue(), "my expected value");   }  } 

the question how test situation when run junits in local machine (or automatic test machine hudson or jenkins) , bean runs on application server context different local one. can't touch production code, need write test.

actually don't need make mybeanlocal functional, need myvalue set.

i thinking mocking, not familiar that.

you can use jmockit mocking api (which created) such tests:

public class myclasstest {     @tested myclass myclass;      @test     public void processvalue() {         new nonstrictexpectations() {             @mocked ejbfactory fac;             @mocked mybeanlocal mb;              {                 ejbfactory.getlocal(mybeanlocal.class); result = mb;                 mb.fetchvalue(); result = "some value";             }         };          assertequals(myclass.processvalue(), "my expected value");     } } 

the mocking of ejbfactory may omitted, if still returns object in unit testing environment.