public void Get_TotalStock_Of_DistributionCenter()
{
var inv = GetInventories().AsQueryable();
var center = GetDistributionCenters().FirstOrDefault(c => c.Id == 0);
var mockDbSet = new Mock <DbSet <Inventory> >();
mockDbSet.As <IQueryable <Inventory> >().Setup(p => p.Provider).Returns(inv.Provider);
mockDbSet.As <IQueryable <Inventory> >().Setup(p => p.Expression).Returns(inv.Expression);
mockDbSet.As <IQueryable <Inventory> >().Setup(p => p.ElementType).Returns(inv.ElementType);
mockDbSet.As <IQueryable <Inventory> >().Setup(p => p.GetEnumerator()).Returns(inv.GetEnumerator);
var mockContext = new Mock <RentalContext>();
mockContext.Setup(r => r.Inventory).Returns(mockDbSet.Object);
var service = new DistributionService(mockContext.Object);
var stock = service.GetTotalStock(center.Id);
stock.Should <int>().Be(10);
}
