public void TheTotalALogWithOnlyDebitsIsTheirNegativeSum()
{
var transactionLog = new Ledger();
transactionLog.Record(new DebitEntry(DateTime.Now, new Money(1m)));
transactionLog.Record(new DebitEntry(DateTime.Now, new Money(3m)));
var actualTotal = transactionLog.Accept(new BalanceCalculatingVisitor(), new Money(0m));
var expectedTotal = new Money(-4m);
Assert.That(actualTotal, Is.EqualTo(expectedTotal));
}
public void TotalEqualsSumOfAddedMoney()
{
var transactionLog = new Ledger();
transactionLog.Record(new CreditEntry(DateTime.Now, new Money(1m)));
transactionLog.Record(new CreditEntry(DateTime.Now, new Money(3m)));
var actualTotal = transactionLog.Accept(new BalanceCalculatingVisitor(), new Money(0m));
var expectedTotal = new Money(4m);
Assert.That(actualTotal, Is.EqualTo(expectedTotal));
}
public void WhenCashingInACheque_TheAmountShouldBeTakenOutOfTheAccount()
{
// ARRANGE
var transactionLog = new Ledger();
var expectedTotal = new Money(-1m);
// ACT
transactionLog.Record(new ChequeWithdrawal(DateTime.Now, new Money(1m), new ChequeNumber(10)));
// ASSERT
var actualTotal = transactionLog.Accept(new BalanceCalculatingVisitor(), new Money(0m));
Assert.That(actualTotal, Is.EqualTo(expectedTotal));
}