public async Task TestEditPersonalityDesctriptionAsync_WithWithDescriptionIdNull_ShouldNotClearThePersonalityDescription()
        {
            // Arrange
            var contextFactory = new ApplicationDbContextFactory();
            var context        = contextFactory.CreateApplicationDbContext();

            var mapperFactory = new AutoMapperFactory();
            var mapper        = mapperFactory.CreateMapper();

            var adminServices = new AdminServices(context, mapper);

            SeedDbWithUsers(context);                                 // Count: 2

            var testApplicationUser = context.Users.FirstOrDefault(); // Take the first user.
            var userId = testApplicationUser.Id;


            // Act
            await adminServices.EditPersonalityDesctriptionAsync(userId, null);

            var actualDescription = context.Users
                                    .FirstOrDefault(user => user.Id == userId)
                                    .PersonalityDesctription;

            // Assert
            Assert.Equal(expected: null, actual: actualDescription);
        }