public void TestMethod1()
{
var dataSource = GetTestProducts(10);
var enumerable = dataSource as Product[] ?? dataSource.ToArray();
enumerable.ToList().ForEach(p =>
{
Console.WriteLine(p.UnitPrice);
});
var productMockSet = new MockDbSet <Product>(enumerable.ToList());
productMockSet.Setup(prod => prod.Include(nameof(Category))).Returns(productMockSet.Object);
productMockSet.Setup(prod => prod.Include(nameof(Supplier))).Returns(productMockSet.Object);
var mockContext = new Mock <NorthWindContext>();
mockContext.Setup(c => c.Products).Returns(productMockSet.Object);
var provider = new ProductProvider(mockContext.Object);
var products = provider.GetAllProducts();
Console.WriteLine(products);
products.Count().Should().Be(10);
var discounted = provider.GetDiscountedProducts();
discounted.Count().Should().Be(0);
var cheap = provider.GetCheaperProducts(10m).ToArray <Product>();
cheap.Should().NotBeNull();
var cnt = cheap.Length;
cnt.Should().Be(10);
}