@Test
public void testEthEstimateGasContractCreation() throws Exception {

    web3j.ethEstimateGas(
            Transaction.createContractTransaction(
                    "0x52b93c80364dc2dd4444c146d73b9836bbbb2b3f", BigInteger.ONE,
                    BigInteger.TEN, "")).send();
    verifyResult("{\"jsonrpc\":\"2.0\",\"method\":\"eth_estimateGas\","
            + "\"params\":[{\"from\":\"0x52b93c80364dc2dd4444c146d73b9836bbbb2b3f\","
            + "\"gasPrice\":\"0xa\",\"data\":\"0x\",\"nonce\":\"0x1\"}],\"id\":1}");
}