public void Authenticate_Failure()
        {
            var api     = new ProsperApi("wrong", "credentials", "https://api.stg.circleone.com/v1/");
            var success = api.AuthenticateAsync().Result;

            Assert.IsFalse(success, "Authentication should have failed, but it was successful");
        }
        public void Authenticate_Success()
        {
            var success = _api.AuthenticateAsync().Result;

            Assert.IsTrue(success, "Credentials are invalid");
        }