public URI getServerAddress() {
    return serverAddresses.get(0);
  }
@Test
  public void shouldParseSingleServerAddress() throws Exception {
    // Given:
    final String singleServerAddress = SOME_SERVER_ADDRESS;
    final URI singleServerURI = new URI(singleServerAddress);

    // When:
    try (KsqlRestClient ksqlRestClient = clientWithServerAddresses(singleServerAddress)) {
      // Then:
      assertThat(ksqlRestClient.getServerAddress(), is(singleServerURI));
    }
  }