}

  public void testCycleOfEmpty() {
    // "<String>" for javac 1.5.
    Iterator<String> cycle = Iterators.<String>cycle();
    assertFalse(cycle.hasNext());
  }

  public void testCycleOfOne() {
    Iterator<String> cycle = Iterators.cycle("a");
    for (int i = 0; i < 3; i++) {
      assertTrue(cycle.hasNext());
      assertThat(cycle.next()).isEqualTo("a");
    }
  }

  }

  public void testCycleOfEmpty() {
    // "<String>" for javac 1.5.
    Iterator<String> cycle = Iterators.<String>cycle();
    assertFalse(cycle.hasNext());
  }

  public void testCycleOfOne() {
    Iterator<String> cycle = Iterators.cycle("a");
    for (int i = 0; i < 3; i++) {
      assertTrue(cycle.hasNext());
      assertThat(cycle.next()).isEqualTo("a");
    }
  }