@Test
public void testCreateContractAddress() {

    String address = "0x19e03255f667bdfd50a32722df860b1eeaf4d635";
    assertThat(generateContractAddress(address, BigInteger.valueOf(209)),
            is("0xe41e694d8fa4337b7bffc7483d3609ae1ea068d5"));
    assertThat(generateContractAddress(address, BigInteger.valueOf(257)),
            is("0x59c21d36fbe415218e834683cb6616f2bc971ca9"));
}