public void BlueSkyTest_AddActivities()
        {
            // pre-conditions
            Assert.AreEqual(0, Context.cardactivity.Local.Count);

            // exercise
            CardActivity cardActivity = new CardActivity();

            cardActivity.Amount      = 2;
            cardActivity.Description = "Test description";
            cardActivity.Category    = "test category";
            cardActivity.Date        = DateTime.Today;
            Service.AddActivities(new CardActivity[] { cardActivity });

            // post-conditions
            Assert.AreEqual(1, Context.cardactivity.Local.Count);
        }