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

  @CollectionSize.Require(SEVERAL)
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testElementSetRemoveDuplicatePropagatesToMultiset() {
    initThreeCopies();
    int size = getNumElements();
    int expectedSize = size - getMultiset().count(e0());
    Set<E> elementSet = getMultiset().elementSet();
    assertTrue(elementSet.remove(e0()));
    assertEmpty(getMultiset());

  public void testCount_1() {
    assertEquals("multiset.count(present) didn't return 1", 1, getMultiset().count(e0()));
  }

  @CollectionSize.Require(SEVERAL)
  public void testCount_3() {
    initThreeCopies();
    assertEquals("multiset.count(thriceContained) didn't return 3", 3, getMultiset().count(e0()));
  }

  @CollectionFeature.Require(ALLOWS_NULL_QUERIES)
  public void testCount_nullAbsent() {

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

  @CollectionSize.Require(SEVERAL)
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testElementSetRemoveDuplicatePropagatesToMultiset() {
    initThreeCopies();
    int size = getNumElements();
    int expectedSize = size - getMultiset().count(e0());
    Set<E> elementSet = getMultiset().elementSet();
    assertTrue(elementSet.remove(e0()));
    assertEmpty(getMultiset());