### Question:
UserServiceFacadeImpl implements UserServiceFacade { @Override public boolean matchPreviousWithdrawPassword(String previousPassword) { UserEntry user = currentDetailUser(); if (user == null) { logger.warn("user not logged on"); return false; } if (!user.isWithdrawPasswordSet()) { return false; } final boolean matches = passwordEncoder.matches(previousPassword, user.getWithdrawPassword()); if (!matches) { logger.warn("user {}, id {}, withdraw password not matched for previous to change.", user.getUsername(), user.getPrimaryKey()); return false; } return true; }  @Override UserAccount currentUser(); @Override UserEntry currentDetailUser(); @Override boolean isWithdrawPasswordSet(); @Override boolean isWithdrawPasswordMatched(String withdrawPassword); @Override boolean canAuthWithNewPassword(String username, String newPassword); @Override UserPasswordReset getToken(String token); PortfolioEntry obtainPortfolioForUser(); @Override boolean matchPreviousPassword(String previousPassword); @Override void editDetails(String username, String email, String cellPhoneNumber, String firstName, String lastName); @Override void editAdminDetails(String username,
                                 String email,
                                 Identifier identifier,
                                 String cellPhoneNumber,
                                 String firstName,
                                 String lastName,
                                 List<String> roles); @Override void updateNotificationSettings(boolean logonAlert, boolean withdrawMoneyAlert, boolean withdrawItemAlert, boolean executedAlert); @Override void changePassword(String previousPassword,
                               String newPassword,
                               String confirmedNewPassword,
                               String operatingIp,
                               Date changedTime); @Override boolean createWithdrawPassword(String withdrawPassword, String confirmedWithdrawPassword, String operatingIp, Date changedTime); @Override boolean matchPreviousWithdrawPassword(String previousPassword); boolean generateForgetPasswordToken(String email, String operatingIp, Date currentTime); @Override UserAccount resetPasswordWithToken(String token,
                                              String password,
                                              String confirmedPassword,
                                              String operatingIp,
                                              Date resetTime); @Override void changeWithdrawPassword(String previousPassword,
                                       String withdrawPassword,
                                       String confirmedWithdrawPassword,
                                       String operatingIp,
                                       Date changedTime); @Override UserEntry findByEmail(String email); @Override int findPasswordResetCount(String email, String ip, Date currentDate); @SuppressWarnings("SpringJavaAutowiringInspection") @Autowired void setPasswordEncoder(PasswordEncoder passwordEncoder); @SuppressWarnings("SpringJavaAutowiringInspection") @Autowired void setCommandGateway(CommandGateway commandGateway); @SuppressWarnings("SpringJavaAutowiringInspection") @Autowired void setUserService(UserService userService); @SuppressWarnings("SpringJavaAutowiringInspection") @Autowired void setUserRepository(UserQueryRepository userRepository); @SuppressWarnings("SpringJavaAutowiringInspection") @Autowired void setPortfolioQueryRepository(PortfolioQueryRepository portfolioQueryRepository); @SuppressWarnings("SpringJavaAutowiringInspection") @Autowired void setUserPasswordResetRepository(UserPasswordResetRepository userPasswordResetRepository); @Autowired void setEmailSender(ForgetPasswordEmailSender emailSender);  }### Answer:
@Test public void testMatchPreviousWithdrawPassword() throws Exception { final String previousPassword = "previousPassword"; UserService userService = mockUserService(); UserQueryRepository userRepository = mock(UserQueryRepository.class); when(userRepository.findByUsername(eq(username))).thenReturn(user); UserServiceFacadeImpl service = new UserServiceFacadeImpl(); service.setUserService(userService); service.setUserRepository(userRepository); service.setPasswordEncoder(passwordEncoder); user.setWithdrawPassword(passwordEncoder.encode(previousPassword)); boolean matched = service.matchPreviousWithdrawPassword(previousPassword); user.setWithdrawPassword(passwordEncoder.encode(previousPassword + 12)); boolean unmatched = service.matchPreviousWithdrawPassword(previousPassword); assertThat(matched, is(true)); assertThat(unmatched, is(false)); verify(userService, times(2)).getCurrentUser(); verify(userRepository, times(2)).findByUsername(eq(username)); }