### Question:
EthUtil { public static BigInteger etherToWei(BigDecimal ether) { return Convert.toWei(ether, Convert.Unit.ETHER).toBigInteger(); } private  EthUtil(); static EthWalletKey generateNewAccount(); static BigDecimal weiToEther(BigInteger wei); static Long ethToGwei(BigDecimal ether); static BigInteger etherToWei(BigDecimal ether); static BigInteger gweiToWei(Long gwei); static BigDecimal gweiToEth(Long gwei); static BigDecimal atmToEth(Long apl); static Long atmToGwei(Long apl); static Long gweiToAtm(Long gwei); static BigDecimal fromAtm(BigDecimal ix); static boolean isAddressValid(String address);  }### Answer:
@Test void etherToWei() { BigInteger wei = EthUtil.etherToWei(ETH); assertEquals(WEI, wei); }