assertEquals(5, sb.capacity()); assertEquals(0, sb.index()); assertEquals(0, sb.length()); assertEquals(5, sb.capacity()); assertEquals(1, sb.index()); assertEquals(3, sb.length()); assertEquals(5, sb.capacity()); assertEquals(2, sb.index()); assertEquals(6, sb.length()); assertEquals(5, sb.capacity()); assertEquals(3, sb.index()); assertEquals(9, sb.length()); assertEquals(5, sb.capacity()); assertEquals(1, sb.index()); assertEquals(3, sb.length());