KinClient { public Request<Long> getMinimumFee() { return kinClientInternal.getMinimumFee(); } KinClient(@NonNull Context context, @NonNull Environment environment, String appId);  KinClient(@NonNull Context context, @NonNull Environment environment, @NonNull String appId, @NonNull String storeKey); @VisibleForTesting  KinClient(Environment environment, KeyStore keyStore, TransactionSender transactionSender,
              AccountInfoRetriever accountInfoRetriever, GeneralBlockchainInfoRetrieverImpl generalBlockchainInfoRetriever,
              BlockchainEventsCreator blockchainEventsCreator, BackupRestore backupRestore, String appId, String storeKey); @NonNull KinAccount addAccount(); @NonNull KinAccount importAccount(@NonNull String exportedJson, @NonNull String passphrase); KinAccount getAccount(int index); boolean hasAccount(); int getAccountCount(); boolean deleteAccount(int index); void clearAllAccounts(); Environment getEnvironment(); Request<Long> getMinimumFee(); long getMinimumFeeSync(); String getAppId(); String getStoreKey();  }
@Test public void getMinimumFee() throws Exception { long expectedMinFee = 100; when(mockGeneralBlockchainInfoRetriever.getMinimumFeeSync()).thenReturn(expectedMinFee); long minFee = kinClient.getMinimumFeeSync(); assertEquals(expectedMinFee, minFee); }