public void ShouldBeUnique()
        {
            DocExampleWriter.Document(() =>
            {
                var lisa = new Person() { Name = "Lisa" };
                var bart = new Person() { Name = "Bart" };
                var maggie = new Person() { Name = "Maggie" };
                var simpsonsKids = new List<Person>() { bart, lisa, maggie, maggie};

                simpsonsKids.ShouldBeUnique();
            }, _testOutputHelper);
        }
        public void TwoPlayersShouldNotBeTheSame()
        {
            var player1 = new PlayerCharacter() {Name = "Faldar"};
            var player2 = new PlayerCharacter() { Name = "Faldar" };
            player2.Weapons.Add("Ring of Healing");
            var playerList = new List<PlayerCharacter>() {player1, player2};

            playerList.ShouldBeUnique();
        }