public void ExecuteTest()
{
var user = new User("test", "test", "test", "*****@*****.**", 99);
var product1 = new BuyTransaction(DateTime.Now, user, new Product("test", 100, true));
var product2 = new BuyTransaction(DateTime.Now, user, new Product("test", 0, false));
Assert.Throws <InsufficientCreditsException>(new TestDelegate(() => { product1.Execute(); }));
Assert.Throws <NotActiveException>(new TestDelegate(() => { product2.Execute(); }));
}
public void ExecuteInvalidBuyTransaction_WithCreditOff_ThrowError()
{
User user = new User("first name", "last name", "username", "*****@*****.**", 0);
Product product = new Product(69, "TestProduct", 25, true, false);
BuyTransaction bt = new BuyTransaction(user, product.Price, product);
Assert.Throws <InsufficientCreditsException>(() => bt.Execute());
}
public void ExecuteInvalidBuyTransaction_WithInactiveProduct_ThrowError()
{
User user = new User("first name", "last name", "username", "*****@*****.**", 500);
Product product = new Product(69, "TestProduct", 25, false, true);
BuyTransaction bt = new BuyTransaction(user, product.Price, product);
Assert.Throws <NotActiveProductException>(() => bt.Execute());
}
public void Execute_UserBuysProduct_IsUserBalanceUpdatedCorrectly(decimal userBalance, decimal productPrice)
{
IUser user = CreateUser(userBalance);
IProduct product = CreateProduct(productPrice);
ITransaction transaction = new BuyTransaction(user, product, DateTime.Now);
transaction.Execute();
Assert.AreEqual(userBalance - productPrice, user.Balance);
}
public void ExecuteValidBuyTransaction_Succes(decimal amount)
{
User user = new User("first name", "last name", "username", "*****@*****.**", amount);
Product product = new Product(69, "TestProduct", 25, true, true);
BuyTransaction bt = new BuyTransaction(user, product.Price, product);
bt.Execute();
Assert.IsTrue((amount - product.Price) == user.Balance);
}
public void BuyTransaction_buyingInactiveProduct_ShouldThrowProductNotActivatedException(string desc)
{
//arrange
User user = new User(id: 1, firstname: "jakob1", lastname: "skov", username: "******", email: "*****@*****.**", balance: 100, lowBalanceDefinition: 50);
Product apple = new Product(id: 1, name: "apple", price: 10, active: false);
BuyTransaction tr = new BuyTransaction(user: user, product: apple);
//act
//assert
Assert.Throws <ProductNotActivatedException>(() => tr.Execute(), desc);
}
public void BuyTransaction_buyingSomethingYouCantAfford_ShouldThrowInsufficientCreditsException(string desc)
{
//arrange
User user = new User(id: 1, firstname: "jakob1", lastname: "skov", username: "******", email: "*****@*****.**", balance: 100, lowBalanceDefinition: 50);
Product apple = new Product(id: 1, name: "apple", price: 199);
BuyTransaction tr = new BuyTransaction(user: user, product: apple);
//act
//assert
Assert.Throws <InsufficientCreditsException>(() => tr.Execute(), desc);
}
public void BuyTransaction_BuyProductWithSufficientCredits_Success(decimal productPrice)
{
Product product = Substitute.For <Product>("Milk", productPrice);
User user = Substitute.For <User>(userArgs);
user.Balance = productPrice;
BuyTransaction transaction = new BuyTransaction(user, product);
transaction.Execute();
Assert.That(transaction.Succeeded, Is.True);
}
public void BuyTransaction_buyingProduct_ShouldWithdrawAmountFromUserBalance(string desc)
{
//arrange
User user = new User(id: 1, firstname: "jakob1", lastname: "skov", username: "******", email: "*****@*****.**", balance: 100, lowBalanceDefinition: 50);
Product apple = new Product(id: 1, name: "apple", price: 10, active: true);
BuyTransaction tr = new BuyTransaction(user, apple);
decimal expected = 90;
//act
tr.Execute();
//assert
Assert.AreEqual(expected, user.Balance, $"{desc}: actual:{tr.User.Balance},expected:{expected}");
}
public void BuyTransaction_UndoProductPurchase_Success()
{
const decimal amount = 10;
Product product = Substitute.For <Product>("Milk", amount);
User user = Substitute.For <User>(userArgs);
user.Balance = amount;
BuyTransaction transaction = new BuyTransaction(user, product);
transaction.Execute();
transaction.Undo();
Assert.That(transaction.Undone, Is.True);
Assert.That(user.Balance, Is.EqualTo(amount));
}
public void Execute_InsufficientCredits_ThrowInsufficientCreditsException(decimal userBalance)
{
// Arrange
IUser user = Substitute.For <IUser>();
IProduct product = Substitute.For <IProduct>();
product.IsActive = true;
decimal productPrice = userBalance + 10; // Make price greater than userBalance
user.Balance = userBalance;
product.Price = productPrice;
ITransaction transaction = new BuyTransaction(user, DateTime.Now, product);
// Act
void ExecuteTransaction() => transaction.Execute();
// Assert
Assert.Throws <InsufficientCreditsException>(ExecuteTransaction);
}
public void Execute_SufficientCredits_WidtdrawsTransactionAmountFromUserBalance()
{
// Arrange
IUser user = Substitute.For <IUser>();
IProduct product = new Product(1000, "Name", 1000, true);
decimal startBalance = 100m;
user.Balance = startBalance;
decimal productPrice = 10m;
product.Price = productPrice;
ITransaction transaction = new BuyTransaction(user, DateTime.Now, product);
// Act
transaction.Execute();
// Assert
Assert.AreEqual(startBalance - productPrice, user.Balance);
}
