array.unshift(newItems[0]);
assertEquals(newItems[0], array.get(0));
assertEquals(newItems.length, array.length());
// Now join them together in harmony.
assertEquals("3$4$5", array.join("$"));
for (int i = 0, n = items.length; i < n; ++i) {
assertEquals(i, array.indexOf(newItems[i]));
assertTrue(array.contains(newItems[i]));
}