public async void AddAsync_AddsToConext()
{
var venue = VenueGenerator.Create();
using (var context = new booking_facilitiesContext(contextOptions))
{
context.Database.EnsureCreated();
var repository = new VenueRepository(context);
await repository.AddAsync(venue);
Assert.Equal(1, await context.Venue.CountAsync());
Assert.Equal(venue, await context.Venue.SingleAsync());
}
}