public async Task PaymentAllTest()
        {
            var optionBuilder = new DbContextOptionsBuilder <ApplicationDbContext>()
                                .UseInMemoryDatabase("testDb");
            var dbContext = new ApplicationDbContext(optionBuilder.Options);

            var service = new PaymentsService(dbContext);

            var payment = new Payment
            {
                Date          = DateTime.UtcNow.Date,
                PaymentSource = Enum.Parse <PaymentSource>("каса"),
                Value         = 100
            };

            await dbContext.Payments.AddAsync(payment);

            await dbContext.SaveChangesAsync();


            // Act
            var result = service.AllAsync();

            // Assert
            Assert.NotNull(result);
            //Assert.Equal(1, result.Id);
        }