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 Contructor_Null_Username()
        {
            ArgumentException e = null;

            try
            {
                var a = new ProsperApi("", null, "");
            }
            catch (ArgumentException ex)
            {
                e = ex;
            }

            Assert.IsNotNull(e, "An exception should have been thrown for null / empty credentials");
        }