assertTrue(map.containsKey(key));
      assertTrue(map.containsValue(value));
      assertTrue(valueCollection.contains(value));
      assertTrue(valueCollection.containsAll(singleton(value)));
      assertTrue(entrySet.contains(mapEntry(key, value)));
      assertTrue(allowsNullKeys || (key != null));
    }
    assertEquals(expectedKeySetHash, keySet.hashCode());

    assertTrue(copy.contains(list.get(0)));
    assertTrue(head.contains(list.get(0)));
    assertTrue(tail.contains(list.get(1)));
    // The following assumes all elements are distinct.
    assertTrue(copy.contains(list.get(size - 1)));
    assertTrue(head.contains(list.get(size - 2)));
    assertTrue(tail.contains(list.get(size - 1)));
    assertFalse(head.contains(list.get(size - 1)));

    assertTrue(copy.contains(list.get(0)));
    assertTrue(head.contains(list.get(0)));
    assertTrue(tail.contains(list.get(1)));
    // The following assumes all elements are distinct.
    assertTrue(copy.contains(list.get(size - 1)));
    assertTrue(head.contains(list.get(size - 2)));
    assertTrue(tail.contains(list.get(size - 1)));
    assertFalse(head.contains(list.get(size - 1)));

            0, unhashables.e0(), 2, "hey you", 0, unhashables.e1());
    assertEquals(2, multimap.get(0).size());
    assertTrue(multimap.get(0).contains(unhashables.e0()));
    assertTrue(multimap.get(0).contains(unhashables.e1()));
    assertTrue(multimap.get(2).contains("hey you"));
  }

  public void testEquals() {
    new EqualsTester()
        .addEqualityGroup(ImmutableMultimap.of(), ImmutableMultimap.of())

    assertThat(iia.contains(1)).isTrue();
    assertThat(iia.contains(8)).isTrue();
    assertThat(iia.contains(4)).isFalse();
    assertThat(ImmutableDoubleArray.of(13).contains(13)).isTrue();
    assertThat(ImmutableDoubleArray.of().contains(21)).isFalse();
    assertThat(iia.subArray(1, 5).contains(1)).isTrue();
  }

  public void testForEach() {

      for (int i = WARMUP_MIN; i < WARMUP_MAX; i++) {
        Object key = warmed.get(i - WARMUP_MIN).getKey();
        assertTrue(keys.contains(key));
        assertTrue(keys.remove(key));
        assertFalse(keys.remove(key));
        assertFalse(keys.contains(key));
      }
      checkEmpty(keys);
      checkEmpty(cache);
    }
  }

  public void testValues_populated() {

	maximum := 2
	withoutPort := make([]string, 0, len(domains))
	for _, d := range domains {
		if !strings.Contains(d, ":") {
			withoutPort = append(withoutPort, d)
			// if the domain contains IPv6, such as [fd00:10:96::7fc7] and [fd00:10:96::7fc7]:8090
		} else if strings.Count(d, ":") > 2 {
			// if the domain is only a IPv6 address, such as [fd00:10:96::7fc7], append it

          parentBuilder) {
    List<TestSuite> derivedSuites = new ArrayList<>(super.createDerivedSuites(parentBuilder));

    if (!parentBuilder.getFeatures().contains(SUBSET_VIEW)) {
      // Other combinations are inherited from SortedSetTestSuiteBuilder.
      derivedSuites.add(createSubsetSuite(parentBuilder, Bound.NO_BOUND, Bound.INCLUSIVE));

  }

  @Override
  protected void expectMissing(Entry<K, V>... entries) {
    for (Entry<K, V> entry : entries) {
      assertFalse("Should not contain entry " + entry, actualContents().contains(entry));
      assertFalse(
          "Should not contain key " + entry.getKey() + " mapped to value " + entry.getValue(),
          equal(getMap().get(entry.getKey()), entry.getValue()));
    }
  }

    }

    @Override
    public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
      return fromTable.contains(rowKey, columnKey);
    }

    @Override
    @CheckForNull
    public V2 get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
      // The function is passed a null input only when the table contains a null
      // value.