public void ValidateExistingAndNotExistingToken()
        {
            var tokenRepository = new LocalRepository <Token>();
            var userRepository  = new Mock <IRepository <InsideUser> >();
            var provider        = new AccessTokenProvider(tokenRepository, userRepository.Object);
            var client          = new Client()
            {
                Id = 1
            };
            var user = new InsideUser()
            {
                Id       = "Id2",
                ClientId = client.Id,
                Client   = client
            };

            var validToken = new Token()
            {
                Id             = 2,
                UserId         = user.Id,
                AccessToken    = "Some Random Generated String 2",
                ExpirationDate = DateTime.Today.AddDays(1),
                InsideUser     = user
            };


            tokenRepository.Add(validToken);

            var validResult   = provider.Validate((int)validToken.InsideUser.ClientId, validToken.AccessToken);
            var inValidResult = provider.Validate((int)validToken.InsideUser.ClientId, "Some Invalid Random String");

            Assert.IsTrue(validResult);
            Assert.IsFalse(inValidResult);
        }