assertEquals("foo", fooEntry.getKey());
    assertThat(fooEntry.getValue()).contains(2);
    assertFalse(entries.hasNext());
    assertEquals("{foo=[2]}", map.toString());
  }

  public void testEntriesAfterMultimapUpdate() {
    ListMultimap<String, Integer> multimap = create();
    multimap.put("foo", 2);
    multimap.put("bar", 3);
    Collection<Entry<String, Integer>> entries = multimap.entries();