public static String configsTopic(final KsqlConfig ksqlConfig) {
    return toKsqlInternalTopic(ksqlConfig, KSQL_CONFIGS_TOPIC_SUFFIX);
  }
@Test
  public void shouldReturnConfigsTopic() {
    // Given/When
    final String commandTopic = ReservedInternalTopics.configsTopic(ksqlConfig);

    // Then
    assertThat(commandTopic, is("_confluent-ksql-default__configs"));
  }