array.unshift(newItems[0]);
assertEquals(newItems[0], array.get(0));
assertEquals(newItems.length, array.length());
// Now join them together in harmony.
assertEquals("false$true$false", array.join("$"));
assertEquals(0, array.indexOf(false));
assertTrue(array.contains(false));
assertEquals(1, array.indexOf(true));
assertTrue(array.contains(true));