public void testSingleIterator() { CompositeIterator it = new CompositeIterator(); it.add(Arrays.asList(new String[] {"0", "1"}).iterator()); for (int i = 0; i < 2; i++) { assertTrue(it.hasNext()); assertEquals(String.valueOf(i), it.next()); } assertFalse(it.hasNext()); try { it.next(); fail(); } catch (NoSuchElementException e) { // expected } }
public void testNoIterators() { CompositeIterator it = new CompositeIterator(); assertFalse(it.hasNext()); try { it.next(); fail(); } catch (NoSuchElementException e) { // expected } }
public void testInUse() { List list = Arrays.asList(new String[] {"0", "1"}); CompositeIterator it = new CompositeIterator(); it.add(list.iterator()); it.hasNext(); try { it.add(list.iterator()); fail(); } catch (IllegalStateException e) { // expected } it = new CompositeIterator(); it.add(list.iterator()); it.next(); try { it.add(list.iterator()); fail(); } catch (IllegalStateException e) { // expected } }