@Test
  public void testAddNewViaHeader() {
    String hostname = ProxyUtils.getHostName();

    HttpMessage httpMessage =
        new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/endpoint");
    ProxyUtils.addVia(httpMessage);

    List<String> viaHeaders = httpMessage.headers().getAll(HttpHeaders.Names.VIA);
    assertThat(viaHeaders, hasSize(1));

    String expectedViaHeader = "1.1 " + hostname;
    assertEquals(expectedViaHeader, viaHeaders.get(0));
  }