@Test void testRemoveWithThree() { List<Integer> list1 = createList(4); List<Integer> list2 = new ArrayList<>(); List<Integer> list3 = createList(4); int count = list1.size() + list2.size() + list3.size(); CompositeIterator<Integer> compositeIterator = new CompositeIterator<>(); compositeIterator.add(list1.iterator()); compositeIterator.add(list2.iterator()); compositeIterator.add(list3.iterator()); while (compositeIterator.hasNext()) { compositeIterator.next(); compositeIterator.remove(); count--; } assertEquals(0, count); assertEquals(0, list1.size()); assertEquals(0, list2.size()); assertEquals(0, list3.size()); }
@Test void testRemoveWithOne() { CompositeIterator<Integer> compositeIterator = new CompositeIterator<>(); List<Integer> list = createList(4); compositeIterator.add(list.iterator()); int count = list.size(); while (compositeIterator.hasNext()) { compositeIterator.next(); compositeIterator.remove(); count--; } assertEquals(0, count); assertEquals(0, list.size()); }
@Test void testRemoveWithTwo() { List<Integer> list1 = createList(4); List<Integer> list2 = createList(4); int count = list1.size() + list2.size(); CompositeIterator<Integer> compositeIterator = new CompositeIterator<>(); compositeIterator.add(list1.iterator()); compositeIterator.add(list2.iterator()); while (compositeIterator.hasNext()) { compositeIterator.next(); compositeIterator.remove(); count--; } assertEquals(0, count); assertEquals(0, list1.size()); assertEquals(0, list2.size()); }
@Test void testRemoveFail() { List<Integer> list1 = createList(4); List<Integer> list2 = createList(4); CompositeIterator<Integer> compositeIterator = new CompositeIterator<>(); compositeIterator.add(list1.iterator()); compositeIterator.add(list2.iterator()); try { compositeIterator.remove(); fail("error"); } catch (Exception e) { // ignore } }