### Question:
VotingUtils { public static StaticArray4<Address> whitelistedSenderAddresses(String contractAddress, String from, BigInteger gasPrice, BigInteger gasLimit, String url) throws Exception { Voting contract = prepareReadOnlyVotingContract(contractAddress, from, gasPrice, gasLimit, url); assertContract(contract); return contract.whitelistedSenderAddresses().send(); }  static TransactionReceipt vote(String contractAddress, IsoDep tag, String publicKey, String from,
                                          BigInteger gasPrice, BigInteger gasLimit, Activity activity, String url); static StaticArray4<Address> whitelistedSenderAddresses(String contractAddress, String from,
                                                                   BigInteger gasPrice, BigInteger gasLimit, String url);  }### Answer:
@Test public void testWhitelistedSenderAddresses() throws Exception { final StaticArray4<Address> addresses = VotingUtils.whitelistedSenderAddresses(CONTRACT_ADDRESS, TransactionSigner.credentials.getAddress(), GAS_PRICE, GAS_LIMIT, ROPSTEN_URI); assertEquals(4, addresses.getValue().size()); }