### Question:
TppAccountsController implements TppAccountsRestApi { @Override public ResponseEntity<Void> depositCash(String accountId, AmountTO amount) { return accountMgmtStaffRestClient.depositCash(accountId, amount); }  @Override ResponseEntity<Void> createAccount(String userId, DepositAccount account); @Override ResponseEntity<Void> updateAccountAccess(AccountAccess accountAccess); @Override ResponseEntity<List<AccountDetailsTO>> getAllAccounts(); @Override ResponseEntity<CustomPageImpl<AccountDetailsTO>> getAllAccounts(String queryParam, int page, int size); @Override ResponseEntity<AccountDetailsTO> getAccountDetailsByIban(String iban); @Override ResponseEntity<AccountDetailsTO> getSingleAccount(String accountId); @Override ResponseEntity<AccountReport> accountReport(String accountId); @Override ResponseEntity<Void> depositCash(String accountId, AmountTO amount); @Override ResponseEntity<Resource> downloadAccountTemplate(); @Override ResponseEntity<Boolean> changeStatus(String accountId);  }### Answer:
@Test void depositCash() { when(accountMgmtStaffRestClient.depositCash(any(), any())).thenAnswer(i -> ResponseEntity.ok().build()); ResponseEntity<Void> response = accountsController.depositCash(ACCOUNT_ID, getAmountTO()); assertThat(response.getStatusCode().is2xxSuccessful()).isTrue(); }