}

  public void testLast_emptyIterable() {
    Set<String> set = new HashSet<>();
    assertThat(FluentIterable.from(set).last()).isAbsent();
  }

  public void testSkip_simple() {
    Collection<String> set = ImmutableSet.of("a", "b", "c", "d", "e");
    assertEquals(
        Lists.newArrayList("c", "d", "e"), Lists.newArrayList(FluentIterable.from(set).skip(2)));

    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)));
    assertThat(skip(set, 2).toString()).isEqualTo("[c, d, e]");
  }