public IInterestAccount OpenInterestAccount(InterestAccountType type, decimal initialDeposit, InterestCounpoundType compoundType = InterestCounpoundType.Daily, double defaultRate = 0.0)
{
ValidationHelper.NotNull(type, "type");
ValidationHelper.NegativeNumeric <decimal>(initialDeposit, "initialDeposit");
ValidationHelper.NegativeNumeric <double>(defaultRate, "defaultRate");
IInterestAccount _account = null;
switch (type)
{
case (InterestAccountType.Checking):
_account = new CheckingAccount(initialDeposit, compoundType, defaultRate);
break;
case (InterestAccountType.Savings):
_account = new SavingsAccount(initialDeposit, compoundType, defaultRate);
break;
case (InterestAccountType.MaxiSavings):
_account = new MaxiSavingsAccount(initialDeposit, compoundType, defaultRate);
break;
default:
throw new Exception("Account type is not yet supported");
}
this.InterestAccounts.Add(_account);
return(_account);
}
public void Transfer(IInterestAccount receivingAccount, decimal amount, DateTime date)
{
ValidationHelper.NotNull(receivingAccount, "receivingAccount");
ValidationHelper.NegativeTransactionValue(amount, "amount");
ValidationHelper.ZeroTransactionValue(amount, "amount");
this.Transactions.Add(new Transaction(amount * -1, TransactionType.TransferOut, date));
receivingAccount.Transactions.Add(new Transaction(amount, TransactionType.TransferIn, date));
}
public void TestInit()
{
// Initial deposit of $100
// Do not override the default rates
// Compound type is daily
_SavingsAccount = new SavingsAccount(1000);
_CheckingAccount = new CheckingAccount(1000);
_MaxiSavingsAccount = new MaxiSavingsAccount(1000);
}
public void Accounts_AreInterestsAccruing()
{
IInterestAccount _SavingsAccount;
IInterestAccount _CheckingAccount;
IInterestAccount _MaxiSavingsAccount;
// Initial deposit of $100
// Do not override the default rates
// Compound type is daily
_SavingsAccount = new SavingsAccount(1000);
_CheckingAccount = new CheckingAccount(1000);
_MaxiSavingsAccount = new MaxiSavingsAccount(1000);
_SavingsAccount.Deposit(2000); //Tr 2
_SavingsAccount.Withdraw(1500); // Tr 3
_SavingsAccount.Deposit(10000); // Tr 4
_SavingsAccount.Transfer(_CheckingAccount, 4000); // Tr 5
DateTime _futDate_4 = DateProvider.Now().AddDays(4);
DateTime _futDate_7 = DateProvider.Now().AddDays(7);
// No transactions prior to the periods
decimal _fut4_interest;
decimal _fut7_interest;
_fut4_interest = _SavingsAccount.InterestEarned(_futDate_4);
_fut7_interest = _SavingsAccount.InterestEarned(_futDate_7);
Debug.Print(_fut4_interest.ToString());
Assert.AreEqual("$0.16", _fut4_interest.ToDollars());
Assert.AreEqual("$0.29", _fut7_interest.ToDollars());
// Test again when there is transaction in duration
DateTime _futDate_8 = DateProvider.Now().AddDays(8);
DateTime _futDate_9 = DateProvider.Now().AddDays(9);
DateTime _futDate_11 = DateProvider.Now().AddDays(11);
_SavingsAccount.Deposit(5000, _futDate_8);
_SavingsAccount.Withdraw(7000, _futDate_9);
_fut7_interest = _SavingsAccount.InterestEarned(_futDate_11);
Assert.AreEqual("$0.46", _fut7_interest.ToDollars());
}
public void OpenInterestAccount(IInterestAccount account)
{
ValidationHelper.NotNull(account, "account");
this.InterestAccounts.Add(account);
}
public void Transfer(IInterestAccount receivingAccount, decimal amount)
{
this.Transfer(receivingAccount, amount, DateProvider.Now());
}
