public void CreateTrivialTest()
        {
            List <Message> messages = new List <Message>()
            {
                new Message("text1", "num1", true, new DateTime(1991, 01, 11, 2, 21, 31)),
                new Message("text_2", "_num2", true, new DateTime(1992, 02, 12, 2, 22, 32)),
                new Message("text_3", "num3", true, new DateTime(1993, 03, 13, 2, 23, 33)),
                new Message("text4", "_num4", true, new DateTime(1994, 04, 14, 2, 24, 34)),
                new Message("text5", "num5", true, new DateTime(1995, 05, 15, 2, 25, 35))
            };
            var         factory  = new SMSSelectorSimpleFactory();
            SMSSelector selector = factory.CreateSelector(null);

            Assert.IsNull(selector);
        }
        public void CreateFromDateSelectorTest()
        {
            List <Message> messages = new List <Message>()
            {
                new Message("text1", "num1", true, new DateTime(1991, 01, 11, 2, 21, 31)),
                new Message("text_2", "_num2", true, new DateTime(1992, 02, 12, 2, 22, 32)),
                new Message("text_3", "num3", true, new DateTime(1993, 03, 13, 2, 23, 33)),
                new Message("text4", "_num4", true, new DateTime(1994, 04, 14, 2, 24, 34)),
                new Message("text5", "num5", true, new DateTime(1995, 05, 15, 2, 25, 35))
            };
            var data = new SMSSelectorData("text_", "_num",
                                           new DateTime(1993, 03, 13, 2, 23, 33),
                                           new DateTime(1994, 07, 17, 2, 27, 37));
            var         factory  = new SMSSelectorSimpleFactory();
            SMSSelector selector = factory.CreateSelector("RecievedAfterSelector");

            Assert.IsTrue(selector.IsUsed(data));
            Assert.IsFalse(selector.Predicate(messages[0], data));
            Assert.IsFalse(selector.Predicate(messages[1], data));
            Assert.IsTrue(selector.Predicate(messages[2], data));
            Assert.IsTrue(selector.Predicate(messages[3], data));
            Assert.IsTrue(selector.Predicate(messages[4], data));
        }