### Question:
PIS403ErrorMapper extends Psd2ErrorMapper<MessageError, Error403NGPIS> { @Override public HttpStatus getErrorStatus() { return HttpStatus.FORBIDDEN; }  @Override Function<MessageError, Error403NGPIS> getMapper(); @Override HttpStatus getErrorStatus();  }### Answer:
@Test void getErrorStatus_shouldReturn403() { HttpStatus errorStatus = pis403ErrorMapper.getErrorStatus(); assertEquals(HttpStatus.FORBIDDEN, errorStatus); }