@Test
public void testGetBalanceOfWallet() throws Exception {

    setUpWireMockForCall("invokefunction", "invokefunction_balanceOf_300000000.json",
            "balanceOf", account1.getScriptHash().toString());
    setUpWireMockForCall("invokefunction", "invokefunction_balanceOf_300000000.json",
            "balanceOf", account2.getScriptHash().toString());
    assertThat(gasToken.getBalanceOf(Wallet.withAccounts(account1, account2)),
            is(new BigInteger("600000000")));
}