assertEquals(i, array.indexOf(newItems[i]));
assertTrue(array.contains(newItems[i]));
}
final int imposter = 100;
assertEquals(-1, array.indexOf(imposter));
assertFalse(array.contains(imposter));
final int[] itemsA = new int[] {11, 12};
final int[] itemsB = new int[] {13, 14};
final ArrayOfInt a = arrayFrom(itemsA);