public void MakeDepositToDepositAccount_CannotDepositNegativeAmount()
{
// Arrange
Individual personToMakeDeposit = new Individual();
DepositAccount deposit = new DepositAccount(personToMakeDeposit, 0.3);
// Act and Assert
Assert.ThrowsException <ArgumentOutOfRangeException>(() => deposit.MakeDeposit(-2));
}