public void GetUsers_GetByUsername_CountIsExpectedValue(int id, int expectedCount)
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IEnumerable <IUser> users = systemManager.GetUsers(user => user.Id == id);
Assert.AreEqual(expectedCount, users.Count());
}
public void BuyProduct_UserBuysProduct_ExpectInsufficientCreditsException()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IUser user = CreateUser(0);
IProduct product = CreateProduct(100, false);
Assert.Throws <InsufficientCreditsException>(() => systemManager.BuyProduct(user, product));
}
private static void Main(string[] args)
{
IBarcodeSystemManager systemManager = new BarcodeSystemManager().EnableLogging();
IBarcodeSystemUI systemUI = new BarcodeSystemUI(systemManager);
BarcodeSystemController systemController = new BarcodeSystemController(systemManager, systemUI);
systemUI.Start();
}
public void BuyProduct_UserBuysProduct_ExpectDoesNotThrowInsufficientCreditsException
(decimal userBalance, decimal productPrice, bool canBeBoughtOnCredit)
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IUser user = CreateUser(userBalance);
IProduct product = CreateProduct(productPrice, canBeBoughtOnCredit);
Assert.DoesNotThrow(() => systemManager.BuyProduct(user, product));
}
public void BuyProduct_UserBuysProduct_ExpectTransactionUserEqualsUser()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IUser user = CreateUser(100);
IProduct product = CreateProduct(100, false);
BuyTransaction transaction = systemManager.BuyProduct(user, product);
Assert.AreEqual(user, transaction.User);
}
public void GetActiveProducts_GetAll_ExpectIsActive()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IEnumerable <IProduct> activeProducts = systemManager.ActiveProducts;
foreach (IProduct product in activeProducts)
{
Assert.IsTrue(product.IsActive);
}
}
public void AddCreditsToAccount_BalanceChange_ExpectBalanceUpdated()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IUser user = systemManager.GetUsers(u => u.Username != null).First();
const decimal amountToAdd = 50;
decimal initialBalance = user.Balance;
systemManager.AddCreditsToAccount(user, amountToAdd);
Assert.AreEqual(initialBalance + amountToAdd, user.Balance);
}
public void BuyProduct_UserBuysProduct_ExpectTransactionAmountEqualsProductPrice()
{
const decimal productPrice = 100;
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IUser user = CreateUser(100);
IProduct product = CreateProduct(productPrice, false);
BuyTransaction transaction = systemManager.BuyProduct(user, product);
Assert.AreEqual(productPrice, transaction.Amount);
}
public void UserBalanceWarning_UserLowBalance_ExpectEventInvoked()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
IUser user = systemManager.GetUsers(u => u.Username != null).First();
bool wasEventInvoked = false;
systemManager.UserBalanceWarning += (user, balance) => wasEventInvoked = true;
user.Balance = 5;
Assert.IsTrue(wasEventInvoked);
}
public void GetProductById_GetInvalidProduct_ExpectAssertion()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
Assert.Throws <ProductNotFoundException>(() => systemManager.GetProductById(0));
}
public void GetProductById_GetFirstProduct_ExpectDoesNotThrow()
{
BarcodeSystemManager systemManager = new BarcodeSystemManager();
Assert.DoesNotThrow(() => systemManager.GetProductById(1));
}
