public void FriendOrFoeTest1()
        {
            string[] input    = { "blahblah", "Josh", "eyyoooot", "Yeet", "no" };
            string[] expected = { "Josh", "Yeet" };

            Assert.AreEqual(expected, Kata.FriendOrFoe(input));
        }
        public void FriendOrFoeTest3()
        {
            string[] input    = {};
            string[] expected = {};

            Assert.AreEqual(expected, Kata.FriendOrFoe(input));
        }