public async void GetBooksScenario()
{
Fixture fixture = new Fixture();
fixture.Behaviors.OfType <ThrowingRecursionBehavior>().ToList()
.ForEach(b => fixture.Behaviors.Remove(b));
fixture.Behaviors.Add(new OmitOnRecursionBehavior());
var books = fixture.CreateMany <Book>().ToList();
//arrange
var mock = new Mock <IBooksRepository>();
mock.Setup(m => m.RetrieveBooksAsync()).ReturnsAsync(books);
var booksRepository = mock.Object;
var bookshelf = new Bookshelf.BL.Bookshelf(booksRepository);
//act
var booksResult = await bookshelf.BooksAsync();
//asert
booksResult.Count().Should().Equals(books.Count());
}
public async void LoanBooksScenario(int userId)
{
Fixture fixture = new Fixture();
fixture.Behaviors.OfType <ThrowingRecursionBehavior>().ToList()
.ForEach(b => fixture.Behaviors.Remove(b));
fixture.Behaviors.Add(new OmitOnRecursionBehavior());
var book = fixture.Create <Book>();
//arrange
int? expectedLoanedTo = 0;
Book originalBook = book.SimpleClone();
//make the book available to be loaned
book.LoanedTo = null;
var mock = new Mock <IBooksRepository>();
mock.Setup(m => m.RetrieveBookAsync(book.Id))
.ReturnsAsync(book);
//when updating the book, loanedTo is checked
mock.Setup(m => m.SaveOrUpdateBookAsync(It.IsAny <Book>()))
.Returns(Task.CompletedTask)
.Callback((Book b) => { expectedLoanedTo = b.LoanedTo; });
var booksRepository = mock.Object;
var bookshelf = new Bookshelf.BL.Bookshelf(booksRepository);
//act
var booksResult = await bookshelf.LoanAsync(book.Id, userId);
//asert
booksResult.Should().BeTrue();
expectedLoanedTo.Should().Equals(userId);
//make sure only one property changed
book.Should().BeEquivalentTo(originalBook, options =>
options.Excluding(b => b.LoanedTo));
}
