public void PrimaryDispenserCanWithdrawWithEmptyMoneyStack()
{
var moneyStacks = new List <EnglishMoneyStack>();
moneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 2000, Quantity = 0
});
moneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 1000, Quantity = 10
});
EnglishAtmVault vault = new EnglishAtmVault(moneyStacks);
var cashDispenser = new PrimaryCashDispenser(vault);
var atmTerminal = new AtmTerminal(cashDispenser);
var withdrawalAmount = 100m;
atmTerminal.Withdraw(withdrawalAmount);
var atmBalance = atmTerminal.Balance;
var expected = 0m;
Assert.AreEqual(expected, atmBalance);
}
public void PrimaryDispenserReturnsLeastPiecesOfMoney()
{
EnglishAtmVault vault = new EnglishAtmVault(atmVault);
var cashDispenser = new PrimaryCashDispenser(vault);
var atmTerminal = new AtmTerminal(cashDispenser);
decimal withdrawalAmount = 120m;
var result = atmTerminal.Withdraw(withdrawalAmount);
var fiftyPoundCount = result.First(x => x.BaseValue == 5000).Quantity;
var twentyPoundCount = result.First(x => x.BaseValue == 2000).Quantity;
Assert.AreEqual(2, fiftyPoundCount);
Assert.AreEqual(1, twentyPoundCount);
}
public void PrimaryDispenserCanWithdrawMoreThanOnce()
{
EnglishAtmVault vault = new EnglishAtmVault(atmVault);
var cashDispenser = new PrimaryCashDispenser(vault);
var atmTerminal = new AtmTerminal(cashDispenser);
var withdrawalAmount1 = 100m;
atmTerminal.Withdraw(withdrawalAmount1);
var atmBalance1 = atmTerminal.Balance;
var expected1 = 4438m;
Assert.AreEqual(expected1, atmBalance1);
var withdrawalAmount2 = 123m;
atmTerminal.Withdraw(withdrawalAmount2);
var atmBalance2 = atmTerminal.Balance;
var expected2 = 4315m;
Assert.AreEqual(expected2, atmBalance2);
}
public void PrimaryDispenserDoesntOverdraw()
{
// £3 in the vault
var moneyStacks = new List <EnglishMoneyStack>();
moneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 1, Quantity = 100
});
moneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 2, Quantity = 100
});
var vault = new EnglishAtmVault(moneyStacks);
var cashDispenser = new PrimaryCashDispenser(vault);
var atmTerminal = new AtmTerminal(cashDispenser);
// £1.20 taken from the vault
var withdrawalAmount = 3.2m;
atmTerminal.Withdraw(withdrawalAmount);
}
private static void Main(string[] args)
{
string line = null;
var atmMoneyStacks = new List <EnglishMoneyStack>();
// £
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 100, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 100, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 500, Quantity = 50
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 1000, Quantity = 50
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 2000, Quantity = 50
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 5000, Quantity = 50
});
// p
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 1, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 2, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 5, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 10, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 20, Quantity = 100
});
atmMoneyStacks.Add(new EnglishMoneyStack()
{
BaseValue = 50, Quantity = 100
});
var moneyVault = new EnglishAtmVault(atmMoneyStacks);
CashDispenser cashDispenser;
string algorithm = ConfigurationManager.AppSettings["DispensingAlgorithm"];
// choose which algorithm to use based on a setting in the app.config
if (algorithm == "1")
{
cashDispenser = new PrimaryCashDispenser(moneyVault);
}
else
{
cashDispenser = new SecondaryCashDispenser(moneyVault);
}
var atmTerminal = new AtmTerminal(cashDispenser);
System.Console.WriteLine($"ATM balance is {atmTerminal.Balance.ToString("C")}");
System.Console.WriteLine("Enter an amount to withdraw");
while ((line = System.Console.ReadLine()) != "exit")
{
decimal valueToWithdraw;
if (string.IsNullOrEmpty(line) || !decimal.TryParse(line, out valueToWithdraw))
{
System.Console.WriteLine("Enter another amount to withdraw or type 'exit' to close the program");
continue;
}
decimal withdrawalAmount = decimal.Parse(line);
var moneyStackText = new StringBuilder();
try
{
var result = atmTerminal.Withdraw(withdrawalAmount);
foreach (var MoneyStack in result)
{
decimal poundFormat = (decimal)MoneyStack.BaseValue / 100;
bool isPound = MoneyStack.BaseValue % 100 == 0;
moneyStackText.Append(isPound ? $"{MoneyStack.CurrencySymbol}{poundFormat}" : $"{MoneyStack.BaseValue}{MoneyStack.FractionalUnit}");
moneyStackText.Append($"x{MoneyStack.Quantity},");
}
}
catch (Exception e)
{
moneyStackText = new StringBuilder();
moneyStackText.Append(e.Message);
}
System.Console.BackgroundColor = ConsoleColor.Blue;
System.Console.ForegroundColor = ConsoleColor.White;
System.Console.WriteLine(moneyStackText.ToString().TrimEnd(','));
System.Console.ResetColor();
System.Console.WriteLine($"ATM balance is {atmTerminal.Balance.ToString("C")}");
System.Console.WriteLine("Enter another amount to withdraw or type 'exit' to close the program");
}
}