public async Task AdminBecomesAdminAgain()
        {
            await using var context = new WebApiContext(_seeder.DbContextOptions);
            var adminElevation = new AdminElevation(context);

            (await adminElevation.CanBecomeAdmin(_admin.Id)).ShouldBe(true);
            (await adminElevation.CanEnterGroup(_admin.GroupId, _admin.Id)).ShouldBe(true);
        }
        public async Task NewUserBecomesPlainUser()
        {
            await using var context = new WebApiContext(_seeder.DbContextOptions);
            var adminElevation = new AdminElevation(context);

            var user = new User
            {
                Id      = context.Users.Max(u => u.Id) + 1,
                GroupId = _userGroup.Id
            };

            (await adminElevation.CanBecomeAdmin(user.Id)).ShouldBe(true);
            (await adminElevation.CanEnterGroup(user.GroupId, user.Id)).ShouldBe(true);
        }