public void TestItAll()
{
IBookstoreService bookstore = new BookStoreService();
IList <Book> books = bookstore.GetBooks();
Assert.AreEqual(3, books.Count);
Book book = bookstore.GetBook("1");
Assert.AreEqual("C# 5.0", book.Title);
Assert.IsNull(bookstore.GetBook("100"));
Assert.AreEqual("C# 5.0", bookstore.GetBookTitle("1"));
Assert.IsNull(bookstore.GetBookTitle("100"));
Book b1 = new Book {
Title = "Essential C# 5.0", Publisher = "Addison Wesley"
};
Book b1Copy = bookstore.AddBook(b1);
Assert.AreEqual(4, b1Copy.Id);
Assert.AreEqual("Essential C# 5.0", b1Copy.Title);
b1Copy.Title = "Strange title";
Assert.AreEqual(4, bookstore.GetBooks().Count);
Book updatedBook = bookstore.UpdateBook(b1Copy.Id.ToString(), b1Copy);
Assert.AreEqual("Strange title", updatedBook.Title);
Book bCopy2 = bookstore.DeleteBook("2");
Assert.AreEqual(2, bCopy2.Id);
Assert.AreEqual("Beginning Android 4 Application Development", bCopy2.Title);
Assert.AreEqual(3, bookstore.GetBooks().Count);
Assert.IsNull(bookstore.DeleteBook("100"));
}