public void testWithGet() {
assertEquals(new Integer(0), evenNumbers.get(0));
assertEquals(new Integer(2), evenNumbers.get(1));
assertEquals(new Integer(4), evenNumbers.get(2));
assertNull(evenNumbers.get(3));
}
public void testWithNext() {
assertEquals(new Integer(0), evenNumbers.next());
assertEquals(new Integer(2), evenNumbers.next());
assertEquals(new Integer(4), evenNumbers.next());
assertNull(evenNumbers.next());
}