@Test
public void testSort() {
Stack<Integer> s1 = new Stack<>();
s1.push(3);
s1.push(1);
s1.push(5);
s1.push(2);
s1.push(8);
s1.push(2);
assertEquals("|315282", s1.toString());
Stack.sort(s1);
assertEquals("|853221", s1.toString());
}
@Test
public void testTowersOfHanoi() {
Stack<Integer> src = new Stack<>();
Stack<Integer> temp = new Stack<>();
Stack<Integer> dest = new Stack<>();
for (int i = 5; i > 0; i--) {
src.push(i);
}
System.out.println(src.toString());
System.out.println(temp.toString());
System.out.println(dest.toString());
System.out.println();
Stack.towersOfHanoi(5, src, temp, dest);
System.out.println(src.toString());
System.out.println(temp.toString());
System.out.println(dest.toString());
System.out.println();
assertEquals("|54321", dest.toString());
}