public void AddTransaction_Add2IdenticalIncomeTransactionsToEmptyBill_ExceptionThrown()
{
// Arrange
Bill bill = new Bill();
Transaction transaction = new Transaction(new Money(100, "PLN"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
// Act
void addFirstTransactionDelegate() => bill.AddTransaction(transaction);
void addIdenticalTransactionDelegate() => bill.AddTransaction(transaction);
// Assert
Assert.That(() => addFirstTransactionDelegate(), Throws.Nothing);
Exception ex = Assert.Throws <Exception>(() => addIdenticalTransactionDelegate());
Assert.That(ex.Message, Is.EqualTo("Transaction is already added to the bill"));
}
public void AddTransaction_Add2DifferentIncomeTransactionsToEmptyBill_IncomeAdded()
{
// Arrange
Bill bill = new Bill();
Transaction firstTransaction = new Transaction(new Money(100, "PLN"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
Transaction secondTransaction = new Transaction(new Money(200, "PLN"), new DateTimeOffset(2010, 10, 11, 10, 10, 10, TimeSpan.Zero), "Dinner");
// Act
bill.AddTransaction(firstTransaction);
bill.AddTransaction(secondTransaction);
// Assert
Assert.AreEqual(2, bill.Transactions.Count);
Assert.AreEqual(firstTransaction, bill.Transactions.First());
Assert.AreEqual(secondTransaction, bill.Transactions.Last());
}
public void GetAllTransactions_BillWith2Transactions_ListReturned()
{
// Arrange
Bill bill = new Bill();
Transaction firstTransaction = new Transaction(new Money(100, "PLN"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
Transaction secondTransaction = new Transaction(new Money(200, "PLN"), new DateTimeOffset(2010, 10, 11, 10, 10, 10, TimeSpan.Zero), "Dinner");
bill.AddTransaction(firstTransaction);
bill.AddTransaction(secondTransaction);
// Act
ICollection <Transaction> result = bill.GetAllTransactions();
// Assert
Assert.AreEqual(2, result.Count);
Assert.AreEqual(firstTransaction, result.First());
Assert.AreEqual(secondTransaction, result.Last());
}
public void AddTransaction_AddIncomeTransactionToEmptyBill_IncomeAdded()
{
// Arrange
Bill bill = new Bill();
Transaction transaction = new Transaction(new Money(100, "PLN"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
// Act
bill.AddTransaction(transaction);
// Assert
Assert.AreEqual(1, bill.Transactions.Count);
Assert.AreEqual(transaction, bill.Transactions.FirstOrDefault());
}
public void RemoveTransaction_ExistinTransaction_SuccesfullRemoved()
{
// Arrange
Bill bill = new Bill("PLN");
Transaction transaction = new Transaction(new Money(100, "PLN"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
bill.AddTransaction(transaction);
// Act
bill.RemoveTransactionFromBill(transaction.Id);
// Assert
Assert.AreEqual(0, bill.Transactions.Count);
}
public void AddTransaction_AddNullTransaction_ExceptionThrown()
{
// Arrange
Bill bill = new Bill();
Transaction transaction = null;
// Act
void addTransactionDelegate() => bill.AddTransaction(transaction);
// Assert
Exception ex = Assert.Throws <ArgumentException>(() => addTransactionDelegate());
Assert.That(ex.Message, Is.EqualTo("Transaction is null"));
}
public void AddTransaction_AddIncomeTransactionWithDifferentCurrency_ExceptionThrown()
{
// Arrange
Bill bill = new Bill("PLN");
Transaction transaction = new Transaction(new Money(100, "USD"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
// Act
void addTransaction() => bill.AddTransaction(transaction);
// Assert
Exception ex = Assert.Throws <Exception>(() => addTransaction());
Assert.AreEqual(ex.Message, "Transaction has different currency than bill");
}
public void GetCurrentAmount_BillWithTransactionsNoInitialState_AmountReturned(int[] values, decimal expectedValue)
{
// Arrange
Bill bill = new Bill("PLN");
foreach (var value in values)
{
Transaction transaction = new Transaction(new Money((decimal)value, "PLN"), new DateTimeOffset(2010, 10, 10, 10, 10, 10, TimeSpan.Zero), "Cinema");
bill.AddTransaction(transaction);
}
// Act
Money result = bill.GetCurrentAmount();
// Assert
Assert.AreEqual(expectedValue, result.Amount);
}
