public async Task CancelAsync_ShouldReturnCorrectResult()
{
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
var reservationRepository = new EfDeletableEntityRepository <Reservation>(context);
var reservationsService = new ReservationsService(reservationRepository);
var seeder = new DbContextTestsSeeder();
await seeder.SeedReservationsAsync(context);
var result = await reservationsService.CancelAsync(1);
Assert.True(result == 1, ErrorMessage);
}