assertTrue(Iterables.isEmpty(emptyList));

    Iterable<String> singletonList = singletonList("foo");
    assertFalse(Iterables.isEmpty(singletonList));
  }

  public void testSkip_simple() {
    Collection<String> set = ImmutableSet.of("a", "b", "c", "d", "e");
    assertEquals(newArrayList("c", "d", "e"), newArrayList(skip(set, 2)));
    assertEquals("[c, d, e]", skip(set, 2).toString());
  }