### Question:
AccountLocalConfigPermissioningController implements TransactionPermissioningProvider { public AllowlistOperationResult removeAccounts(final List<String> accounts) { final List<String> normalizedAccounts = normalizeAccounts(accounts); final AllowlistOperationResult inputValidationResult = inputValidation(normalizedAccounts); if (inputValidationResult != AllowlistOperationResult.SUCCESS) { return inputValidationResult; } if (!accountAllowlist.containsAll(normalizedAccounts)) { return AllowlistOperationResult.ERROR_ABSENT_ENTRY; } final List<String> oldAllowlist = new ArrayList<>(this.accountAllowlist); this.accountAllowlist.removeAll(normalizedAccounts); try { verifyConfigurationFileState(oldAllowlist); updateConfigurationFile(accountAllowlist); verifyConfigurationFileState(accountAllowlist); } catch (IOException e) { revertState(oldAllowlist); return AllowlistOperationResult.ERROR_ALLOWLIST_PERSIST_FAIL; } catch (AllowlistFileSyncException e) { return AllowlistOperationResult.ERROR_ALLOWLIST_FILE_SYNC; } return AllowlistOperationResult.SUCCESS; } AccountLocalConfigPermissioningController(
      final LocalPermissioningConfiguration configuration, final MetricsSystem metricsSystem);  AccountLocalConfigPermissioningController(
      final LocalPermissioningConfiguration configuration,
      final AllowlistPersistor allowlistPersistor,
      final MetricsSystem metricsSystem); AllowlistOperationResult addAccounts(final List<String> accounts); AllowlistOperationResult removeAccounts(final List<String> accounts); boolean contains(final String account); List<String> getAccountAllowlist(); synchronized void reload(); @Override boolean isPermitted(final Transaction transaction);  }### Answer:
@Test public void removeDuplicatedAccountShouldReturnDuplicatedEntryResult() { AllowlistOperationResult removeResult = controller.removeAccounts( Arrays.asList( "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "0xfe3b557e8fb62b89f4916b721be55ceb828dbd73")); assertThat(removeResult).isEqualTo(AllowlistOperationResult.ERROR_DUPLICATED_ENTRY); }
@Test public void removeNullListShouldReturnEmptyEntryResult() { AllowlistOperationResult removeResult = controller.removeAccounts(null); assertThat(removeResult).isEqualTo(AllowlistOperationResult.ERROR_EMPTY_ENTRY); }
@Test public void removeEmptyListShouldReturnEmptyEntryResult() { AllowlistOperationResult removeResult = controller.removeAccounts(new ArrayList<>()); assertThat(removeResult).isEqualTo(AllowlistOperationResult.ERROR_EMPTY_ENTRY); }