public static void ClientUpdatedWithPhone09()
        {
            int    validPhone = 0123456789;
            Client c          = new Client("Nom", "Prénom", validPhone, "*****@*****.**");

            try
            {
                c.UpdatePhone(1999999999);
            }
            catch (Exception)
            {
            }
            Assert.True(c.Phone == validPhone);
        }