assertTrue(multimap().put(k0(), v4()));
    assertContentsAnyOrder(valueCollection, v0(), v3(), v4());
  }

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(SUPPORTS_PUT)
  public void testAsMapEntrySetReflectsPutDifferentKey() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v3()));

    Set<Entry<K, Collection<V>>> asMapEntrySet = multimap().asMap().entrySet();
    assertTrue(multimap().put(k1(), v4()));