### Question:
CancelPaymentBodyValidatorImpl implements CancelPaymentBodyValidator { @Override public MessageError validate(HttpServletRequest request, MessageError messageError) { return tppRedirectUriBodyValidator.validate(request, messageError); } @Autowired  CancelPaymentBodyValidatorImpl(TppRedirectUriBodyValidatorImpl tppRedirectUriBodyValidator); @Override MessageError validate(HttpServletRequest request, MessageError messageError);  }### Answer:
@Test void validate() { cancelPaymentBodyValidator.validate(request, messageError); verify(tppRedirectUriBodyValidator).validate(request, messageError); }