VistaUserMap { public int getUserCount() { return this.userMap.size(); }  void addUser(VistaUserDetails user); VistaUserDetails getUser(String vistaId, String division, String accessCode, String verifyCode); VistaUserDetails getUser(String vistaId, String division, String appHandle); int getUserCount(); void setUsers(Map<String, VistaUserDetails> users);  }
@Test public void testConstruct() { VistaUserMap userMap = new VistaUserMap(); assertEquals(0, userMap.getUserCount()); }