public void DepositOperationsTest()
{
DepositAccount1.increaseBalance(new Money(100));
Assert.AreEqual(200, DepositAccount1.balance.asDouble);
Assert.AreEqual(100, DepositAccount1.depositAmount.asDouble);
DepositAccount1.decreaseBalance(new Money(200));
Assert.AreEqual(0, DepositAccount1.balance.asDouble);
Assert.AreEqual(100, DepositAccount1.depositAmount.asDouble);
DepositAccount1.decreaseBalance(new Money(100));
Assert.AreEqual(0, DepositAccount1.balance.asDouble);
Assert.AreEqual(0, DepositAccount1.depositAmount.asDouble);
}