public void ContainsTest()
{
LedgerBook book = getSampleBook();
Console.WriteLine("Generating Item contained in the collection");
LedgerItem containedItem = LedgerItem.Create(new DateTime(1997, 3, 12), "Sales Profit", LedgerItemCreateMode.Credit, 23);
containedItem.Parent = book;
Console.WriteLine("containedItem:" + containedItem);
Console.WriteLine("Is the item contained in book? " + book.Contains(containedItem));
Console.WriteLine("Generating Item not contained in the collection");
LedgerItem notContainedItem = LedgerItem.Create(new DateTime(2091, 6, 27), "Budget to create rocket", LedgerItemCreateMode.Credit, 664773.68);
Console.WriteLine("notContainedItem:" + notContainedItem);
Console.WriteLine("Is the item not contained in book? " + book.Contains(notContainedItem));
}
