public async Task GetBooksByCategory_method_should_invoke_GetBooksByCategory_method_from_Repository()
{
var bookRepositoryMock = new Mock <IBookRepository>();
var categoryRepositoryMock = new Mock <ICategoryRepository>();
var bookService = new BooksService(bookRepositoryMock.Object, categoryRepositoryMock.Object);
await bookService.GetBooksByCategory(1, 9, new Guid());
bookRepositoryMock.Verify(x => x.GetBooksByCategory(It.IsAny <Guid>(), 1, 9), Times.Once);
}
public async Task ShowBookDetails_method_should_throw_exception_when_book_with_provided_id_doesnt_exist()
{
var bookRepositoryMock = new Mock <IBookRepository>();
var categoryRepositoryMock = new Mock <ICategoryRepository>();
var bookService = new BooksService(bookRepositoryMock.Object, categoryRepositoryMock.Object);
bookRepositoryMock.Setup(x => x.GetBook(It.IsAny <Guid>())).Returns(Task.FromResult <Book>(null));
Func <Task <BookDetails> > showBookDetails = async() => await bookService.ShowBookDetails(It.IsAny <Guid>());
await Assert.ThrowsAsync <Exception>(showBookDetails);
}
