public void UidlAfterLogonShouldSucceed()
        {
            var state = new Pop3ServerSessionState()
                {
                    IsLoggedOn = true,
                };

            Assert.IsTrue(state.IsCommandValid(Pop3Command.Uidl));
        }
        public void UidlBeforeLogonShouldFail()
        {
            var state = new Pop3ServerSessionState()
                {
                    IsLoggedOn = false,
                };

            Assert.IsFalse(state.IsCommandValid(Pop3Command.Uidl));
        }