public void Opdracht4b_GetAllNamesSorted()
        {
            //Arrange
            PersonTree tree = new PersonTree(new Person("Bruce"));

            tree.Add(new Person("Jan", 0));
            tree.Add(new Person("Jos", 100));
            tree.Add(new Person("Melinda", 90));
            tree.Add(new Person("Wouter", 10));
            //Act
            string result = tree.GetAllNamesSorted();

            //Assert
            Assert.AreEqual("Jan - Wouter - Bruce - Melinda - Jos", result);
        }
        public void Opdracht4a_AddTest3()
        {
            //Arrange
            PersonTree tree = new PersonTree(new Person("Bruce"));

            //Act
            tree.Add(new Person("Jan", 0));
            string result = tree.GetMostEvilPerson();

            //Assert
            Assert.AreEqual("Bruce", result);
        }