public async Task AddNewBookToAuthorTest_1() { var conString = "Server=DESKTOP-RF07Q5U;Database=AspCoreBookApp;Trusted_Connection=True;MultipleActiveResultSets=true"; IRepositoryContextFactory repositoryContextFactory = new RepositoryContextFactory(); IAuthorRepository authorRepository = new AuthorRepository(conString, repositoryContextFactory); IBookRepository bookRepository = new BookRepository(conString, repositoryContextFactory); var txt = await bookRepository.AddBookToAuthor(new BooksToAuthors { BookId = 5, AuthorId = 3 }); var authorList = await bookRepository.GetBooks(0, 10); var ext = authorList.Records.ToList(); }