assertTrue(cycle.hasNext());
    try {
      cycle.remove();
      fail("no exception thrown");
    } catch (IllegalStateException expected) {
    }
  }

  public void testCycleRemoveSameElementTwice() {
    Iterator<String> cycle = Iterators.cycle("a", "b");
    cycle.next();
    cycle.remove();
    try {
      cycle.remove();
      fail("no exception thrown");