public void BookStorageDeleteBookTest()
{
List <Genre> genres1 = new List <Genre> {
new Genre("fantasy")
};
BookInfo bookInfo1 = new BookInfo("Harry Potter and the Chamber of Secrets", "J.K.Rowling", genres1);
Book book1 = new Book(bookInfo1, 500m, DateTime.Today);
List <Genre> genres2 = new List <Genre> {
new Genre("other")
};
BookInfo bookInfo2 = new BookInfo("One Flew Over the Cuckoo's Nest", " Ken Kesey", genres2);
Book book2 = new Book(bookInfo2, 600m, DateTime.Today.AddDays(-110));
BookStorage bookStorage = new BookStorage();
bookStorage.AddBook(book1);
bookStorage.AddBook(book2);
bookStorage.FindByGuidOrDefault(book1.Guid).Should().Be(book1);
bookStorage.FindByGuidOrDefault(book2.Guid).Should().Be(book2);
bookStorage.DeleteBook(book1);
bookStorage.FindByGuidOrDefault(book1.Guid).Should().Be(null);
bookStorage.FindByGuidOrDefault(book2.Guid).Should().Be(book2);
}
