public void TelescopeDropdown_ShouldReturnValidTelescopes()
        {
            // Arrange
            StarStuffDbContext db = this.Database;
            TelescopeService   telescopeService = new TelescopeService(db);

            this.SeedDatabase(db);

            List <Telescope> fakeTelescopes = this.GetFakeTelescopes();

            int i = -1;

            // Act
            IEnumerable <TelescopeServiceModel> telescopes = telescopeService.TelescopeDropdown();

            // Assert
            foreach (var actual in telescopes)
            {
                Telescope expected = fakeTelescopes[++i];

                this.CompareTelescopes(expected, actual);
            }
        }