public void LijstEersteLettersOphalenBevattendeRKlein2()
        {
            //Arrange
            var lijst = new List <string> {
                "Yael", "Jeroen", "Wesley"
            };

            var target   = new LinqQueries(lijst);
            var expected = new List <char> {
                'J'
            };



            //Act
            List <char> result = target.FirstLettersContaining("R");

            //Assert
            CollectionAssert.AreEqual(expected, result);
        }
        public void LijstEersteLettersOphalenBevattendeRVolledigeLijst()
        {
            //Arrange
            var lijst = new List <string> {
                "Yael", "Rouke", "Wesley", "Simon", "Martin", "Jelle",
                "Martijn", "Robert - Jan", "Rob", "Pim", "Vincent", "Wouter",
                "Misha", "Steven", "Jeroen", "Max", "Menno", "Rory",
                "Jan", "Jan-Paul", "Michiel", "Gert", "Lars", "Joery"
            };

            var target   = new LinqQueries(lijst);
            var expected = new List <char> {
                'R', 'M', 'M', 'R', 'R', 'W', 'J', 'R', 'G', 'L', 'J'
            };



            //Act
            List <char> result = target.FirstLettersContaining("R");


            //Assert
            CollectionAssert.AreEqual(expected, result);
        }