help testing state

Hi,

We have the following method that we need to test ( see code snippet).

I know about junit ( using 4 here) and Jmock, but all hints are
welcome.
How can I write a test that excerises createNewHome

public void createNewHome(String address){

 Address newAddress = aHome.create();

switch(state) {
             case INITIAL:
               //Do stuff
               //Set state to INVITE
             case INVITE:
                 //Do something else
                 //Set state to TERMINATE
             case TERMINATE:
                 //Do something other
                 //Set state to INTIAL
                 break;
             default:
                 System.out.println("Not a valid state");
         }
 //More code .......

}