public void MembershipByAccount() { var mockDb = new MockDatabase(); DoubleDb(mockDb); MembershipController controller = new MembershipController(mockDb); var result = controller.ByAccount(1) as OkNegotiatedContentResult <List <Membership> >; Assert.IsNotNull(result); Assert.IsTrue(result.Content.Select(t => t.TeamId).Contains(1)); }