public void GetCourierNames_For_DistributionCenter()
{
var couriers = GetCouriers().AsQueryable();
var center = GetDistributionCenters().FirstOrDefault(c => c.Id == 0);
var mockDbSet = new Mock <DbSet <Courier> >();
mockDbSet.As <IQueryable <Courier> >().Setup(p => p.Provider).Returns(couriers.Provider);
mockDbSet.As <IQueryable <Courier> >().Setup(p => p.Expression).Returns(couriers.Expression);
mockDbSet.As <IQueryable <Courier> >().Setup(p => p.ElementType).Returns(couriers.ElementType);
mockDbSet.As <IQueryable <Courier> >().Setup(p => p.GetEnumerator()).Returns(couriers.GetEnumerator);
var mockContext = new Mock <RentalContext>();
mockContext.Setup(r => r.Couriers).Returns(mockDbSet.Object);
var service = new DistributionService(mockContext.Object);
var results = service.GetCourierNames(center.Id);
results.Should().HaveLength(4);
results.Should().Contain("USPS");
}
