// by
IntArrayIterable zero_ten_evens = zero_ten.by(2);
Assert.assertEquals("[0, 2, 4, 6, 8, 10]", zero_ten_evens.sequence().toString());
Assert.assertEquals(6, zero_ten_evens.getSize());
Assert.assertTrue(zero_ten_evens.longerThan(5));
Assert.assertFalse(zero_ten_evens.longerThan(6));
Assert.assertFalse(zero_ten_evens.longerThan(7));
Assert.assertFalse(zero_ten_evens.shorterThan(5));
Assert.assertFalse(zero_ten_evens.shorterThan(6));
Assert.assertTrue(zero_ten_evens.shorterThan(7));