Iterator<String> consumingIterator = consumingIterable.iterator();

    assertThat(list).containsExactly("a", "b").inOrder();

    assertTrue(consumingIterator.hasNext());
    assertThat(list).containsExactly("a", "b").inOrder();
    assertEquals("a", consumingIterator.next());
    assertThat(list).contains("b");

    assertTrue(consumingIterator.hasNext());

    // Test & Verify
    Iterator<String> consumingIterator = Iterators.consumingIterator(list.iterator());

    assertEquals("Iterators.consumingIterator(...)", consumingIterator.toString());

    assertThat(list).containsExactly("a", "b").inOrder();

    assertTrue(consumingIterator.hasNext());
    assertThat(list).containsExactly("a", "b").inOrder();

    // Test & Verify
    Iterator<String> consumingIterator = Iterators.consumingIterator(list.iterator());

    assertEquals("Iterators.consumingIterator(...)", consumingIterator.toString());

    assertThat(list).containsExactly("a", "b").inOrder();

    assertTrue(consumingIterator.hasNext());
    assertThat(list).containsExactly("a", "b").inOrder();

   * @return an iterator that removes and returns elements from the supplied iterator
   * @since 2.0
   */
  public static <T extends @Nullable Object> Iterator<T> consumingIterator(Iterator<T> iterator) {
    checkNotNull(iterator);
    return new UnmodifiableIterator<T>() {
      @Override
      public boolean hasNext() {
        return iterator.hasNext();
      }