map.put(1, "1");
    Entry<Integer, String> entry = getOnlyElement(map.entrySet());
    map.remove(1);
    entry.setValue("one");
    assertThat(map).containsEntry(1, "one");
  }

  public void testAllocArraysDefault() {
    CompactHashMap<Integer, String> map = CompactHashMap.create();
    assertThat(map.needsAllocArrays()).isTrue();
    assertThat(map.entries).isNull();
    assertThat(map.keys).isNull();

      assertEquals(expectedEntry, entries.get(i));
      assertEquals(expectedKey, keys.get(i));
      assertEquals(expectedValue, values.get(i));
    }
  }

  public void testAllocArraysDefault() {
    CompactLinkedHashMap<Integer, String> map = CompactLinkedHashMap.create();
    assertThat(map.needsAllocArrays()).isTrue();
    assertThat(map.entries).isNull();
    assertThat(map.keys).isNull();

      assertEquals(expectedEntry, entries.get(i));
      assertEquals(expectedKey, keys.get(i));
      assertEquals(expectedValue, values.get(i));
    }
  }

  public void testAllocArraysDefault() {
    CompactLinkedHashMap<Integer, String> map = CompactLinkedHashMap.create();
    assertThat(map.needsAllocArrays()).isTrue();
    assertThat(map.entries).isNull();
    assertThat(map.keys).isNull();