public void CreateAppointments()
        {
            // Arrange
            var repo         = new AppointmentsRepository();
            var appointments = new Appointments()
            {
                Id       = Guid.NewGuid(),
                Date     = DateTime.Now,
                Name     = "Name Test",
                Phone    = 0773351279,
                TestType = TestType.ThyroidFunctionTests
            };

            // Act
            repo.CreateAppointments(appointments);
            var result = repo.GetAllAppointments();

            // Assert
            Assert.Equal(4, result.Count);
        }