@CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddSeveralTimes() {
    int originalCount = getMultiset().count(e0());
    assertEquals(originalCount, getMultiset().add(e0(), 2));
    assertTrue(getMultiset().add(e0()));
    assertEquals(originalCount + 3, getMultiset().add(e0(), 1));
    assertEquals(originalCount + 4, getMultiset().count(e0()));
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)

        3,
        getMultiset().remove(e0(), 2));
    assertTrue(
        "multiset contains present after multiset.remove(present, 2)",
        getMultiset().contains(e0()));
    assertEquals(1, getMultiset().count(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemove_occurrences_absent() {
    int distinct = getMultiset().elementSet().size();

    assertEquals(expectedSize, getMultiset().size());
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testElementSetRemoveAbsent() {
    Set<E> elementSet = getMultiset().elementSet();
    assertFalse(elementSet.remove(e3()));
    expectUnchanged();
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testElementSetClear() {
    getMultiset().elementSet().clear();

        getMultiset().entrySet());
  }

  @CollectionSize.Require(ZERO)
  public void testEntrySet_hashCode_size0() {
    assertEquals(
        "multiset.entrySet() has incorrect hash code", 0, getMultiset().entrySet().hashCode());
  }

  @CollectionSize.Require(ONE)
  public void testEntrySet_hashCode_size1() {
    assertEquals(
        "multiset.entrySet() has incorrect hash code",

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddSeveralTimes() {
    int originalCount = getMultiset().count(e0());
    assertEquals(originalCount, getMultiset().add(e0(), 2));
    assertTrue(getMultiset().add(e0()));
    assertEquals(originalCount + 3, getMultiset().add(e0(), 1));
    assertEquals(originalCount + 4, getMultiset().count(e0()));
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)

public class MultisetForEachEntryTester<E> extends AbstractMultisetTester<E> {
  public void testForEachEntry() {
    List<Entry<E>> expected = new ArrayList<>(getMultiset().entrySet());
    List<Entry<E>> actual = new ArrayList<>();
    getMultiset()
        .forEachEntry((element, count) -> actual.add(Multisets.immutableEntry(element, count)));
    Helpers.assertEqualIgnoringOrder(expected, actual);
  }

    initThreeCopies();
    assertEquals(3, getMultiset().count(e0()));
    Multiset.Entry<E> entry = Iterables.getOnlyElement(getMultiset().entrySet());
    assertEquals(3, entry.getCount());
    assertTrue(getMultiset().remove(e0()));
    assertEquals(2, entry.getCount());
    assertTrue(getMultiset().elementSet().remove(e0()));
    assertEquals(0, entry.getCount());
    getMultiset().add(e0(), 2);
    assertEquals(2, entry.getCount());

        3,
        getMultiset().remove(e0(), 2));
    assertTrue(
        "multiset contains present after multiset.remove(present, 2)",
        getMultiset().contains(e0()));
    assertEquals(1, getMultiset().count(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemove_occurrences_absent() {
    int distinct = getMultiset().elementSet().size();

        getMultiset().entrySet());
  }

  @CollectionSize.Require(ZERO)
  public void testEntrySet_hashCode_size0() {
    assertEquals(
        "multiset.entrySet() has incorrect hash code", 0, getMultiset().entrySet().hashCode());
  }

  @CollectionSize.Require(ONE)
  public void testEntrySet_hashCode_size1() {
    assertEquals(
        "multiset.entrySet() has incorrect hash code",

  @CollectionSize.Require(absent = ZERO)
  public void testContainsAllMultisetIgnoresFrequency() {
    assertTrue(getMultiset().containsAll(getSubjectGenerator().create(e0(), e0(), e0())));
  }

  @CollectionSize.Require(absent = ZERO)
  public void testContainsAllListIgnoresFrequency() {
    assertTrue(getMultiset().containsAll(Arrays.asList(e0(), e0(), e0())));
  }