@Test()
public void toStringTest()
{

   ProcessingInformation pi = new ProcessingInformation("Request");
   pi.setRemoteAddress("123.12.122.33");
   pi.setUsername("user1");
   ProcessingInformation pi1 = new ProcessingInformation("Request");
   UserKey uk = new UserKey(pi, new UserSelection[]
   {
      UserSelection.LOGIN, UserSelection.IP
   });
   UserKey uk1 = new UserKey(pi1, new UserSelection[]
   {
      UserSelection.LOGIN, UserSelection.IP
   });
   Assert.assertEquals(uk.toString(), "LOGIN:user1;IP:123.12.122.33;"); // No Exception
   Assert.assertEquals(uk1.toString(), "LOGIN:null;IP:null;"); // No Exception (null)
}