### Question:
IbanGenerationService { public BankCodeStructure getBankCodeStructure(CountryCode code) { return new BankCodeStructure(code); }  String generateNextIban(String tppId); String generateIbanForNisp(DataPayload payload, String iban); Map<CountryCode, String> getCountryCodes(); BankCodeStructure getBankCodeStructure(CountryCode code);  }### Answer:
@Test void getBankCodeStructure() { BankCodeStructure bankCodeStructure = generationService.getBankCodeStructure(COUNTRY_CODE); assertEquals(8, bankCodeStructure.getLength()); assertEquals(bankCodeStructure.getType(), EntryCharacterType.n); }