public void VenueExists_ChecksById()
        {
            var venue = VenueGenerator.Create();

            using (var context = new booking_facilitiesContext(contextOptions))
            {
                context.Database.EnsureCreated();
                context.Venue.Add(venue);
                context.SaveChanges();
                var repository = new VenueRepository(context);
                Assert.True(repository.VenueExists(venue.VenueId));
                Assert.False(repository.VenueExists(-1));
                Console.WriteLine(venue.VenueId);
            }
        }