public void LendBook(Customer customer, BookCopy bookCopy)
{
var lend = new LendBookEvent(bookCopy, customer, _dateProvider.Now());
try
{
_dataRepository.AddEvent(lend);
} catch (EventException e)
{
throw new DataServiceException(e);
}
}
private void IsValid(LendBookEvent lendBookEvent)
{
CheckBookEvent(lendBookEvent);
if (lendBookEvent.Copy.State == BookCopy.States.Damaged ||
lendBookEvent.Copy.State == BookCopy.States.NeedReplacement)
{
throw new InvalidEventException("Book is in a bad state - cannot be lent!");
}
if (lendBookEvent.Copy.IsLent)
{
throw new InvalidEventException("Book is already lent.");
}
}
public void AddEvent_LendingBookNotLent_AddsEventAndChangesBookIsLentToTrue()
{
_repo = new DataRepository(new ConstDataFiller(books: _booksInDataFiller,
customers: _customersInDataFiller,
bookCopies: _bookCopiesInDataFiller,
events: _eventsInDataFiller));
var bookCopy = new BookCopy(_booksInDataFiller[3], BookCopy.States.Good, 20);
_repo.AddBookCopy(bookCopy);
var eve = new LendBookEvent(bookCopy, _customersInDataFiller[1], DateTime.ParseExact("01/02/2020", "dd/MM/yyyy", null));
_repo.AddEvent(eve);
var actual = _repo.GetAllEvents().Contains(eve);
Assert.AreEqual(true, actual);
Assert.AreEqual(true, eve.Copy.IsLent);
}
