private AccountDto AuthenticateUser(AccountDto account)
        {
            var accounts = new AccountDto[]
            {
                new AccountDto
                {
                    Email    = "test1Email",
                    FullName = "test1FullName",
                    Password = "******",
                    Username = "******"
                },
                new AccountDto
                {
                    Email    = "test2Email",
                    FullName = "test2FullName",
                    Password = "******",
                    Username = "******"
                },
                new AccountDto
                {
                    Email    = "test3Email",
                    FullName = "test3FullName",
                    Password = "******",
                    Username = "******"
                },
                new AccountDto
                {
                    Email    = "test4Email",
                    FullName = "test4FullName",
                    Password = "******",
                    Username = "******"
                },
                new AccountDto
                {
                    Email    = "test5Email",
                    FullName = "test5FullName",
                    Password = "******",
                    Username = "******"
                },
                new AccountDto
                {
                    Email    = "test6Email",
                    FullName = "test6FullName",
                    Password = "******",
                    Username = "******"
                }
            };

            var foundAccount = accounts.FirstOrDefault(a => a.Username == account.Username && a.Password == account.Password);

            if (foundAccount != null)
            {
                return(new AccountDto
                {
                    Email = foundAccount.Email,
                    FullName = foundAccount.FullName,
                    Username = foundAccount.Username
                });
            }

            return(null);
        }