public void Agent_Can_get_House_InDB() { using (var context = new DatabaseContext()) { Agent agent = DomainMocksFactory.CreateAgent(); House house = DomainMocksFactory.CreateHouse(); agent.AddHouse(house); context.Agents.Add(agent); context.SaveChanges(); } using (var context = new DatabaseContext()) { Agent agent = context.Agents .Include(x => x.HousesInCharge) .FirstOrDefault(); Assert.IsTrue(agent.HousesInCharge.Count > 0); } }