public async Task AddOwnedBookAsync(IOwnedBook ownedBook, GoogleBooks googleBooks)
{
if (googleBooks is null)
{
throw new ArgumentNullException(nameof(googleBooks));
}
var user = await _context.Users.SingleAsync(u => u.Id == ownedBook.OwnerId);
var book = await _context.Books.SingleOrDefaultAsync(b => b.Isbn == ownedBook.Isbn.IsbnValue);
if (book is null)
{
IBook bookObj = await googleBooks.GetBookFromIsbn(ownedBook.Isbn.IsbnValue);
if (bookObj is null)
{
throw new AggregateException("Unable to retrieve book from Google Books.");
}
book = await AddBook(bookObj);
}
var ownedBookData = new OwnedBook()
{
User = user,
Book = book,
ConditionId = (int)ownedBook.Condition,
AvailabilityStatusId = (int)ownedBook.Availability
};
await _context.OwnedBooks.AddAsync(ownedBookData);
}
public async Task GoogleBooks_GetBookByIsbn_GetIBook(long isbn, string expectedTitle)
{
// arrange
HttpClient client = new HttpClient();
GoogleBooks googleBooks = new GoogleBooks(client, null);
// act
IBook data = await googleBooks.GetBookFromIsbn(isbn);
// assert
Assert.Equal(expectedTitle, data.Title);
}
