.addEqualityGroup(
            new PairedStats(MANY_VALUES_STATS_ITERABLE, MANY_VALUES_STATS_ITERABLE, 1.234))
        .testEquals();
  }

  public void testSerializable() {
    SerializableTester.reserializeAndAssert(MANY_VALUES_PAIRED_STATS);
  }

  public void testToString() {
    assertThat(EMPTY_PAIRED_STATS.toString())

        .addEqualityGroup(
            new PairedStats(MANY_VALUES_STATS_ITERABLE, MANY_VALUES_STATS_ITERABLE, 1.234))
        .testEquals();
  }

  public void testSerializable() {
    SerializableTester.reserializeAndAssert(MANY_VALUES_PAIRED_STATS);
  }

  public void testToString() {
    assertThat(EMPTY_PAIRED_STATS.toString())

        assertEquals(3, data.getValues("key").length);
        assertEquals("value3", data.getValues("key")[0]);
        assertEquals("value5", data.getValues("key")[2]);
    }

    public void test_serializable() {
        // Test that ExtractData is Serializable
        ExtractData data = new ExtractData("content");
        assertTrue(data instanceof java.io.Serializable);
    }