public override void Execute()
{
if (!HasEnoughArguments(2))
{
return;
}
string username = Command[0];
string productIdString = Command[1];
int amountToPurchase = 1;
Product product;
User user;
if (Command.Length == 3 && !int.TryParse(Command[2], out amountToPurchase))
{
barcodeCli.DisplayGeneralError($"{Command[2]} is not a valid amount.");
return;
}
try
{
user = barcodeSystem.GetUserByUsername(username);
if (uint.TryParse(productIdString, out uint productId))
{
try
{
product = barcodeSystem.GetProductById(productId);
try
{
BuyTransaction transaction = barcodeSystem.BuyProduct(user, product, amountToPurchase);
this.transaction = transaction;
Succeeded = transaction.Succeeded;
barcodeCli.DisplayUserBuysProduct(transaction);
}
catch (InsufficientCreditsException)
{
barcodeCli.DisplayInsufficientCash(user, product);
}
}
catch (ProductNotFoundException)
{
barcodeCli.DisplayProductNotFound(productIdString);
}
}
}
catch (UserNotFoundException)
{
barcodeCli.DisplayUserNotFound(username);
}
base.Execute();
}
public void GetTransactionsForUser_ReturnsCorrectTransactions_True()
{
IBarcodeSystem barcodeSystem = Substitute.For <IBarcodeSystem>();
User user = Substitute.For <User>(userArgs);
Product product = Substitute.For <Product>(productArgs);
user.Balance = 1000m;
const int amountOfPurchases = 5;
for (int i = 0; i < amountOfPurchases; i++)
{
barcodeSystem.BuyProduct(user, product);
}
IEnumerable <Transaction> transactionsForUser =
barcodeSystem.GetTransactionsForUser(user, amountOfPurchases);
Assert.That(transactionsForUser, Is.All.Property("User").EqualTo(user));
}