private static <E extends @Nullable Object> Entry<E> entry(final E element, final int count) {
    return Multisets.immutableEntry(element, count);
  }

  private static <E extends @Nullable Object> Entry<E> control(E element, int count) {
    return HashMultiset.create(Collections.nCopies(count, element)).entrySet().iterator().next();
  }

  public void testToString() {

    ms.add("a", Integer.MAX_VALUE);
    ms.add("b", Integer.MAX_VALUE);
    ms.add("c", 3);

    assertEquals(Integer.MAX_VALUE, ms.count("a"));
    assertEquals(Integer.MAX_VALUE, ms.count("b"));
    assertEquals(3, ms.count("c"));

    assertEquals(Integer.MAX_VALUE, ms.headMultiset("c", CLOSED).size());
    assertEquals(Integer.MAX_VALUE, ms.headMultiset("b", CLOSED).size());

   * is permitted and similarly for decrease/remove(). We assume that a
   * setCount() no-op is permitted if either add() or remove() is permitted,
   * though we also allow it to "succeed" if neither is permitted.
   */

  private void assertSetCount(E element, int count) {
    setCountCheckReturnValue(element, count);

    assertEquals(
        "multiset.count() should return the value passed to setCount()",

   * is permitted and similarly for decrease/remove(). We assume that a
   * setCount() no-op is permitted if either add() or remove() is permitted,
   * though we also allow it to "succeed" if neither is permitted.
   */

  private void assertSetCount(E element, int count) {
    setCountCheckReturnValue(element, count);

    assertEquals(
        "multiset.count() should return the value passed to setCount()",

    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));
  }

  public void testCreateWithSize() {
    Multiset<String> multiset = HashMultiset.create(50);
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));
  }

  public void testCreateFromIterable() {

  }

  public void testAddAndGet() {
    Count holder = new Count(20);
    assertEquals(21, holder.addAndGet(1));
  }

  public void testGetAndSet() {
    Count holder = new Count(10);
    assertEquals(10, holder.getAndSet(20));
    assertEquals(20, holder.get());
  }

  public void testSet() {
    Count holder = new Count(10);
    holder.set(20);
    assertEquals(20, holder.get());
  }

   * self-loops incident to {@code node}).
   *
   * <p>If the count is greater than {@code Integer.MAX_VALUE}, returns {@code Integer.MAX_VALUE}.
   *
   * @throws IllegalArgumentException if {@code node} is not an element of this graph
   */
  @Override
  int degree(N node);

  /**
   * Returns the count of {@code node}'s incoming edges (equal to {@code predecessors(node).size()})

   */
  @Override
  public int hashCode() {
    return Objects.hashCode(count, mean, sumOfSquaresOfDeltas, min, max);
  }

  @Override
  public String toString() {
    if (count() > 0) {
      return MoreObjects.toStringHelper(this)
          .add("count", count)
          .add("mean", mean)
          .add("populationStandardDeviation", populationStandardDeviation())

      assertFalse(segment.isLocked());
      Map<?, ?> table = segmentTable(segment);
      // cleanup and then check count after we have a strong reference to all entries
      segment.cleanUp();
      // under high memory pressure keys/values may be nulled out but not yet enqueued
      assertThat(table.size()).isAtMost(segment.count);
      for (Entry<?, ?> entry : table.entrySet()) {
        assertNotNull(entry.getKey());

  public void testElementSetRemovePropagatesToMultiset() {
    Set<E> elementSet = getMultiset().elementSet();
    int size = getNumElements();
    int expectedSize = size - getMultiset().count(e0());
    assertTrue(elementSet.remove(e0()));
    assertFalse(getMultiset().contains(e0()));
    assertEquals(expectedSize, getMultiset().size());
  }

  @CollectionSize.Require(SEVERAL)