public void UserItemChoice_Test_OutOfStock()
{
// Arrange
VendingMachine testVendingMachine = new VendingMachine();
testVendingMachine.RestockFromLines(sampleStockFileLines);
testVendingMachine.AddMoney(20M);
Exception e = new Exception("");
//Act
try
{
VendingMachineItems resultItem = testVendingMachine.UserItemChoice("A1");
VendingMachineItems resultItem1 = testVendingMachine.UserItemChoice("A1");
VendingMachineItems resultItem2 = testVendingMachine.UserItemChoice("A1");
VendingMachineItems resultItem3 = testVendingMachine.UserItemChoice("A1");
VendingMachineItems resultItem4 = testVendingMachine.UserItemChoice("A1");
VendingMachineItems resultItem5 = testVendingMachine.UserItemChoice("A1");
}
catch (Exception f) // catch insufficient stock error
{
e = f; // effectively makes e message "out of stock" ???
}
//Assert
Assert.AreEqual(e.Message, VendingMachine.OUT_OF_STOCK_MESSAGE);
}
/// <summary>
/// -Checks user code input (ex: "A1", "B4")
/// -if code matches from the list- dispense item and update balance
/// - if code does not match, release error message.
/// </summary>
/// <param name="userCodeEntered">this is the code that the user entered</param>
/// <returns></returns>
public VendingMachineItems UserItemChoice(string userCodeEntered)
{
userCodeEntered = userCodeEntered.ToUpper();
if (TotalInventoryDictionary.ContainsKey(userCodeEntered))
{
VendingMachineItems selectedItem = TotalInventoryDictionary[userCodeEntered];
AuditLogPurchaseMethod(selectedItem.Name, selectedItem.SlotId, Balance, Balance - selectedItem.Price);
if (selectedItem.StockCount == 0)
{
throw new Exception(OUT_OF_STOCK_MESSAGE);
}
else if (Balance < selectedItem.Price)
{
throw new Exception(INSUFFICIENT_FUNDS_MESSAGE);
}
selectedItem.StockCount -= 1;
Balance -= selectedItem.Price;
return(selectedItem);
}
else
{
throw new Exception(INVALID_SLOT_MESSAGE);
}
}
public Machine(VendingMachineItems vendingMachineItems, Currency currency)
{
_vendingMachineItems = vendingMachineItems;
foreach (Tender tender in currency.Coins)
{
_coinDenominations.Add(tender.Value);
}
_coinDenominations = _coinDenominations.OrderByDescending(x => x).ToList();
_currencySymbol = currency.Symbol;
}
/// <summary>
/// get the machine items, and determine which country you are working in to pass to the <see cref="Machine"/> to handle the logic.
/// </summary>
/// <param name="request"><see cref="PurchaseItemRequest"/></param>
/// <returns><see cref="PurchaseItemResponse"/></returns>
public PurchaseItemResponse PurchaseItem(PurchaseItemRequest request)
{
List <Change> denominations = null;
List <int> coinsDue = null;
try {
VendingMachineItems items = GetVendingMachineItems();
Country country = countries.Find(x => x.Alpha2Code.ToLower() == request.Alpha2Code.ToLower());
if (country == null)
{
throw new ApplicationException($"Unable to find a config set for the country with the Alpha2Code: {request.Alpha2Code}");
}
Machine machine = new Machine(items, country.Currency);
decimal changeDue = machine.ProcessPurchase(request.Position, request.TenderAmount);
if (changeDue != 0.0M)
{
denominations = machine.GiveCoins(changeDue);
var ordered = denominations.OrderByDescending(x => x.Coin).ToList();
coinsDue = new List <int>();
foreach (Change change in ordered)
{
int count = 0;
while (count < change.Total)
{
count++;
coinsDue.Add(change.Coin);
}
}
}
return(new PurchaseItemResponse {
IsSuccessful = true,
IsClientFriendlyMessage = true,
Message = $"Successfully purchased: {request.Position.ToString()}.{Environment.NewLine}Change due: {country.Currency.Symbol}{changeDue.ToString()}",
TotalChangeDue = changeDue,
Denominations = denominations,
Coins = coinsDue
});
} catch (ApplicationException exception) {
return(new PurchaseItemResponse {
IsSuccessful = false,
IsClientFriendlyMessage = true,
Message = exception.Message
});
} catch (Exception exception) {
return(new PurchaseItemResponse {
IsSuccessful = false,
IsClientFriendlyMessage = false,
Message = exception.ToString()
});
}
}
public void RestockFromLines(List <string> fileLines) // we take our list of strings and loop through it
// make a new machineitems. we split the list and set that to an array. set the indexes of the array to to the properties in the new machine
// then add the item to the new dictionary.
{
foreach (string line in fileLines)
{
VendingMachineItems newItem = new VendingMachineItems();
string[] lineSplit = line.Split("|");
newItem.Name = lineSplit[1];
newItem.Price = decimal.Parse(lineSplit[2]);
newItem.SlotId = lineSplit[0];
newItem.ProductType = lineSplit[3];
newItem.StockCount = 5;
TotalInventoryDictionary.Add(lineSplit[0], newItem);
}
}
public void UserItemChoice_Test_SlotNotFound()
{
//Arrange
VendingMachine testVendingMachine = new VendingMachine();
testVendingMachine.RestockFromLines(sampleStockFileLines);
testVendingMachine.AddMoney(20M);
Exception e = new Exception("");
//Act
try
{
VendingMachineItems resultItem = testVendingMachine.UserItemChoice("Z6");
}
catch (Exception f) // catch insufficient funds error
{
e = f; // effectively makes e message "INVALID SlotMEssage"
}
//Assert
Assert.AreEqual(e.Message, VendingMachine.INVALID_SLOT_MESSAGE);
}
public void UserItemChoice_Test_GoodData()
{
//Arrange
VendingMachine testVendingMachine = new VendingMachine();
testVendingMachine.RestockFromLines(sampleStockFileLines);
testVendingMachine.AddMoney(20M);
string expectedItemName = "M&Ms";
decimal expectedItemPrice = 3.05M;
string expectedItemCategory = "Candy";
//Act
VendingMachineItems resultItem = testVendingMachine.UserItemChoice("A1");
// Assert
Assert.AreEqual(expectedItemName, resultItem.Name);
Assert.AreEqual(expectedItemPrice, resultItem.Price);
Assert.AreEqual(expectedItemCategory, resultItem.ProductType);
}
public void UserItemChoice_Test_InsufficientFunds() // surround user item choice in try catch,
// assert equals exception e.message, to invalid not enough money
{
// Arrange
VendingMachine testVendingMachine = new VendingMachine();
testVendingMachine.RestockFromLines(sampleStockFileLines);
//testVendingMachine.AddMoney(20M); // if this is uncommented this test will fail
Exception e = new Exception("");
//Act
try
{
VendingMachineItems resultItem = testVendingMachine.UserItemChoice("A1");
}
catch (Exception f) // catch insufficient funds error
{
e = f; // effectively makes e message "insufficient funds"
}
//Assert
Assert.AreEqual(e.Message, VendingMachine.INSUFFICIENT_FUNDS_MESSAGE);
}
public void ReadFileOld()
{
using (StreamReader reader = new StreamReader(@"C:\Users\Student\git\c-module-1-capstone-team-2\19_Capstone\vendingmachine.csv"))
{
while (!reader.EndOfStream)
{
string inventoryLine = reader.ReadLine(); // Reads every line and assigns the whole line to the string
string[] lineSplit = inventoryLine.Split("|"); // splits the string into an array.
string productName = lineSplit[1];
decimal itemPrice = decimal.Parse(lineSplit[2]);
string slotId = lineSplit[0];
string productType = lineSplit[3];
//VendingMachineItems item = new VendingMachineItems(productName, itemPrice, 5, slotId);
VendingMachineItems item = new VendingMachineItems();
item.Name = lineSplit[1];
item.Price = decimal.Parse(lineSplit[2]);
item.SlotId = lineSplit[0];
item.ProductType = lineSplit[3];
item.StockCount = 5;
//(lineSplit[1], decimal.Parse(lineSplit[2]), 5, lineSplit[0], lineSplit[3])
TotalInventoryDictionary.Add(lineSplit[0], item);
//A1 | Potato Crisps | 3.05 | Chip
//B1 | Moonpie | 1.80 | Candy
//B2 | Cowtales | 1.50 | Candy
//C1 | Cola | 1.25 | Drink
}
}
}