//Lorenz
    @Test
    public void testIsParent() {
        System.out.println("isParent");
        Human parent = Rickard;
        Human child = Eddard;
        Stammbaum instance = new Stammbaum();
        boolean expResult = true;
        boolean result = instance.isParent(parent, child);
        assertEquals(expResult, result);
    }
    //Lorenz
    @Test
    public void testIsParent1() {
        System.out.println("isParent");
        Human parent = Lyarra;
        Human child = Lyanna;
        Stammbaum instance = new Stammbaum();
        boolean expResult = true;
        boolean result = instance.isParent(parent, child);
        assertEquals(expResult, result);
    }
    //Lorenz
    @Test
    public void testIsParent2() {
        System.out.println("isParent");
        Human parent = Rickard;
        Human child = Robb;
        Stammbaum instance = new Stammbaum();
        boolean expResult = false;
        boolean result = instance.isParent(parent, child);
        assertEquals(expResult, result);
    }
    //Lorenz
    @Test
    public void testIsParent3() {
        System.out.println("isParent");
        Human parent = Rickard;
        Human child = Lyarra;
        Stammbaum instance = new Stammbaum();
        boolean expResult = false;
        boolean result = instance.isParent(parent, child);
        assertEquals(expResult, result);
    }
    //Lorenz
    @Test
    public void testIsParent4() {
        System.out.println("isParent");
        Human parent = Lyanna;
        Human child = Jon;
        Stammbaum instance = new Stammbaum();
        boolean expResult = true;
        boolean result = instance.isParent(parent, child);
        assertEquals(expResult, result);
    }
    //Lorenz
    @Test
    public void testIsParent5() {
        System.out.println("isParent");
        Human parent = null;
        Human child = Jon;
        Stammbaum instance = new Stammbaum();
        boolean expResult = false;
        boolean result = instance.isParent(parent, child);
        assertEquals(expResult, result);
    }

//Lorenz
    @Test
    public void testIsGrandparentNULL() {
        System.out.println("isGrandparentNULL");
        Human grandparent = null;
        Human grandchild = null;
        Stammbaum instance = new Stammbaum();
        boolean expResult = false;
        boolean result = instance.isGrandparent(grandparent, grandchild);
        assertEquals(expResult, result);
    }
//Lorenz
    @Test
    public void testGetAllGrandchildren() {
        System.out.println("getAllGrandchildren");
        Human grandparent = Lyarra;
        Stammbaum instance = new Stammbaum();
        List<Human> expResult = new ArrayList<>();
        expResult.add(Robb);
        expResult.add(Sansa);
        expResult.add(Arya);
        expResult.add(Bran);
        expResult.add(Rickon);
        expResult.add(Jon);
        Comparator<Human> comp = (Human h1, Human h2) -> h1.getName().compareTo(h2.getName());
        Collections.sort(expResult, comp);
        List<Human> result = instance.getAllGrandchildren(grandparent);
        Collections.sort(result, comp);
        assertEquals(expResult, result);
    }
    //Lorenz
    @Test
    public void testGetAllGrandchildren2() {
        System.out.println("getAllGrandchildren");
        Human grandparent = Brandon;
        Stammbaum instance = new Stammbaum();
        List<Human> expResult = new ArrayList<>();
        Comparator<Human> comp = (Human h1, Human h2) -> h1.getName().compareTo(h2.getName());
        Collections.sort(expResult, comp);
        List<Human> result = instance.getAllGrandchildren(grandparent);
        Collections.sort(result, comp);
        assertEquals(expResult, result);
    }