public async Task GetAllBooksAsync_ReturnsAllBooksAsyncTest()
{
//--Arrange
var mockSet = new Mock <DbSet <BookModel> >();
var dataAsQueryable = Data.AsQueryable();
mockSet.As <IDbAsyncEnumerable <BookModel> >()
.Setup(m => m.GetAsyncEnumerator())
.Returns(new TestDbAsyncEnumerator <BookModel>(dataAsQueryable.GetEnumerator()));
mockSet.As <IQueryable <BookModel> >()
.Setup(m => m.Provider)
.Returns(new TestDbAsyncQueryProvider <BookModel>(dataAsQueryable.Provider));
mockSet.As <IQueryable <BookModel> >().Setup(m => m.Expression).Returns(dataAsQueryable.Expression);
mockSet.As <IQueryable <BookModel> >().Setup(m => m.ElementType).Returns(dataAsQueryable.ElementType);
mockSet.As <IQueryable <BookModel> >().Setup(m => m.GetEnumerator()).Returns(dataAsQueryable.GetEnumerator());
var mockContext = new Mock <BookContext>();
mockContext.Setup(c => c.Books).Returns(mockSet.Object);
//--Act
var library = new BookLibraryDb(mockContext.Object);
var books = await library.GetAllBooksAsync();
//--Assert
Assert.AreEqual(2, books.Count);
Assert.AreEqual("J.R.R Tolkien", books[0].Author);
Assert.AreEqual("Brandon Sanderson", books[1].Author);
}
