public void IsVisibleTestNegative()
        {
            var checker = new StatisticChecker();
            var user    = User.NullUser;

            Assert.IsFalse(checker.IsVisible(user));
        }
        public void IsVisibleTestPositive()
        {
            var checker = new StatisticChecker();
            var user    = User.LoginUser("admin", "admin");

            Assert.IsTrue(checker.IsVisible(user));
        }