DocMap docMap = new DocMap(parentMap);

        docMap.put("key1", "value1");
        docMap.put("key2", null);

        assertTrue(docMap.containsKey("key1"));
        assertTrue(docMap.containsKey("key2"));
        assertFalse(docMap.containsKey("key3"));

        assertTrue(docMap.containsValue("value1"));
        assertTrue(docMap.containsValue(null));
        assertFalse(docMap.containsValue("nonexistent"));

            ThreadUtil.sleep(500);
            count++;
            final Map<String, Object> scheduler = getSchedulerItem(namePrefix);
            assertTrue(scheduler.containsKey("running"));
            isRunning = (Boolean) scheduler.get("running");
        }
        if (300 <= count) {
            logger.info("Time out: Failed to start crawler)");
            fail(); // Time Out
        }

        assertTrue(queryMap.containsKey("labels.facet_filetype_pdf") || queryMap.containsKey("PDF"));
        assertTrue(queryMap.containsKey("DOC") || queryMap.containsKey("labels.facet_filetype_doc"));
        assertTrue(queryMap.containsKey("labels.facet_filetype_txt") || queryMap.containsKey("TXT"));

        // Check values
        if (queryMap.containsKey("labels.facet_filetype_pdf")) {

    cache.invalidateAll();
    assertFalse(cache.asMap().containsKey(654));
    assertFalse(cache.asMap().containsKey(2456));
    assertFalse(cache.asMap().containsKey(2));

    cache.put(654, 2675);
    cache.put(2456, 56);
    cache.put(2, 15);
    cache.put(1, 3);

    cache.invalidateAll(ImmutableSet.of(1, 2));

    assertFalse(cache.asMap().containsKey(1));
    assertFalse(cache.asMap().containsKey(2));

    }

    // Test containsKey
    public void test_containsKey() {
        assertFalse(dataStoreParams.containsKey("key1"));

        dataStoreParams.put("key1", "value1");
        assertTrue(dataStoreParams.containsKey("key1"));

        dataStoreParams.put("key2", null);
        assertTrue(dataStoreParams.containsKey("key2"));
    }

    // Test putAll

    assertEquals(expected.get("a"), map.get("a"));
    assertEquals(expected.containsKey("a"), map.containsKey("a"));
    assertEquals(expected.get("b"), map.get("b"));
    assertEquals(expected.containsKey("b"), map.containsKey("b"));
    assertEquals(expected.get("c"), map.get("c"));
    assertEquals(expected.containsKey("c"), map.containsKey("c"));
  }

  public void testTransformReflectsUnderlyingMap() {

        assertNotNull(result);
        assertEquals(2, result.size());
        assertTrue(result.containsKey(mockDomainSid));
        assertTrue(result.containsKey(mockSid1));
        assertEquals(group1Members, result.get(mockDomainSid));
        assertEquals(group2Members, result.get(mockSid1));
    }

    @Test

    /**
     * @throws Exception
     */
    @Test
    public void testContainsKey() throws Exception {
        assertThat(map.containsKey("2"), is(true));
        assertThat(map.containsKey("3"), is(not(true)));
        map.put("3", null);
        assertThat(map.containsKey("3"), is(true));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testIndexOf() throws Exception {

      return;
    }
    assertFalse(map.containsKey(unmappedKey));
    try {
      assertFalse(map.containsKey(new IncompatibleKeyType()));
    } catch (ClassCastException tolerated) {
    }
    assertTrue(map.containsKey(map.keySet().iterator().next()));
    if (allowsNullKeys) {
      boolean unused = map.containsKey(null);
    } else {
      try {

    return delegate().remove(key);
  }

  @Override
  public void clear() {
    delegate().clear();
  }

  @Override
  public boolean containsKey(@Nullable Object key) {
    return delegate().containsKey(key);
  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    return delegate().containsValue(value);
  }

  @Override