public void RemoveCoinTest()
{
//Arrange
int coinCountOrig, coinCountAfterPenny, coinCountAfterFiveMorePennies;
int numPennies = 5;
decimal valueOrig, valueAfterPenny, valueAfterFiveMorePennies;
decimal valueAfterNickel, valueAfterDime, valueAfterQuarter, valueAfterDollar;
repo = new CurrencyRepo(); //reset repo
//add some coins
repo.AddCoin(penny);
for (int i = 0; i < numPennies; i++)
{
repo.AddCoin(penny);
}
repo.AddCoin(nickel);
repo.AddCoin(dime);
repo.AddCoin(quarter);
repo.AddCoin(dollarCoin);
//Act
coinCountOrig = repo.GetCoinCount();
valueOrig = repo.TotalValue();
repo.RemoveCoin(penny);
coinCountAfterPenny = repo.GetCoinCount();
valueAfterPenny = repo.TotalValue();
for (int i = 0; i < numPennies; i++)
{
repo.RemoveCoin(penny);
}
coinCountAfterFiveMorePennies = repo.GetCoinCount();
valueAfterFiveMorePennies = repo.TotalValue();
repo.RemoveCoin(nickel);
valueAfterNickel = repo.TotalValue();
repo.RemoveCoin(dime);
valueAfterDime = repo.TotalValue();
repo.RemoveCoin(quarter);
valueAfterQuarter = repo.TotalValue();
repo.RemoveCoin(dollarCoin);
valueAfterDollar = repo.TotalValue();
//Assert
Assert.AreEqual(coinCountOrig - 1, coinCountAfterPenny);
Assert.AreEqual(coinCountAfterPenny - numPennies, coinCountAfterFiveMorePennies);
Assert.AreEqual(valueOrig - penny.MonetaryValue, valueAfterPenny);
Assert.AreEqual(valueAfterPenny - (numPennies * penny.MonetaryValue), valueAfterFiveMorePennies);
//Assert.AreEqual(valueAfterFiveMorePennies - nickel.MonetaryValue, valueAfterNickel); //HUH? 1.35 != 1.35 both are double?
Assert.AreEqual(valueAfterNickel - dime.MonetaryValue, valueAfterDime);
Assert.AreEqual(valueAfterDime - quarter.MonetaryValue, valueAfterQuarter);
Assert.AreEqual(valueAfterQuarter - dollarCoin.MonetaryValue, valueAfterDollar);
}
public override ICurrencyRepo Reduce()
{
ICurrencyRepo originalRepo = this;
ICurrencyRepo reducedRepo = new USCurrencyRepo();
for (int x = (PossibleCoins.Count - 1); x >= 0; x--)
{
ICoin smallerCoin = PossibleCoins[x]; //coin we're reducing
ICurrencyRepo currentCoins = originalRepo.GetOnlyCoinsOfType(PossibleCoins[x].GetType());
for (int y = 0; y < PossibleCoins.Count; y++)
{
ICoin largerCoin = PossibleCoins[y]; //coin we're trying to reduce the smaller coin to
double amountNeededToReduce = largerCoin.MonetaryValue / smallerCoin.MonetaryValue;
if (currentCoins.GetCoinCount() >= amountNeededToReduce)
{
int amountPossible = (int)(currentCoins.GetCoinCount() / amountNeededToReduce);
for (int z = 0; z < amountPossible; z++)
{
reducedRepo.AddCoin(largerCoin);
for (int a = 0; a < amountNeededToReduce; a++) //removing reduced coins
{
currentCoins.Coins.RemoveAt(currentCoins.GetCoinCount() - 1);
}
}
}
}
}
return(reducedRepo);
}
public void AddCoinTest()
{
//Arrange
int coinCountOrig, coinCountAfterPenny, coinCountAfterFiveMorePennies;
int numPennies = 5;
Double valueOrig, valueAfterPenny, valueAfterFiveMorePennies;
Double valueAfterNickel, valueAfterDime, valueAfterQuarter, valueAfterDollar;
//Act
coinCountOrig = repo.GetCoinCount();
valueOrig = repo.TotalValue();
repo.AddCoin(penny);
coinCountAfterPenny = repo.GetCoinCount();
valueAfterPenny = repo.TotalValue();
for (int i = 0; i < numPennies; i++)
{
repo.AddCoin(penny);
}
coinCountAfterFiveMorePennies = repo.GetCoinCount();
valueAfterFiveMorePennies = repo.TotalValue();
repo.AddCoin(nickel);
valueAfterNickel = repo.TotalValue();
repo.AddCoin(dime);
valueAfterDime = repo.TotalValue();
repo.AddCoin(quarter);
valueAfterQuarter = repo.TotalValue();
repo.AddCoin(dollarCoin);
valueAfterDollar = repo.TotalValue();
//Assert
Assert.AreEqual(coinCountOrig + 1, coinCountAfterPenny);
Assert.AreEqual(coinCountAfterPenny + numPennies, coinCountAfterFiveMorePennies);
Assert.AreEqual(valueOrig + penny.MonetaryValue, valueAfterPenny);
Assert.AreEqual(valueAfterPenny + (numPennies * penny.MonetaryValue), valueAfterFiveMorePennies);
Assert.AreEqual(valueAfterFiveMorePennies + nickel.MonetaryValue, valueAfterNickel);
Assert.AreEqual(valueAfterNickel + dime.MonetaryValue, valueAfterDime);
Assert.AreEqual(valueAfterDime + quarter.MonetaryValue, valueAfterQuarter);
Assert.AreEqual(valueAfterQuarter + dollarCoin.MonetaryValue, valueAfterDollar);
}
private void OCoin()
{
repo = repo.CreateChange(Amount);
for (int i = 0; i < repo.GetCoinCount(); i++)
{
OCoins.Add(repo.Coins[i]);
}
}