/** Tests requesting a raw UDP channel with RTP level relay type MIXER */
  @Test
  public void testMixerChannel() throws Exception {
    String focusJid = "focusJid";

    ColibriConferenceIQ confIq = ColibriUtilities.createConferenceIq(focusJid);
    ColibriConferenceIQ.Channel channel = confIq.getContents().get(0).getChannel(0);
    channel.setTransport(new RawUdpTransportPacketExtension());
    channel.setRTPLevelRelayType(RTPLevelRelayType.MIXER);

    IQ respIq = bridge.handleColibriConferenceIQ(confIq);

    assertTrue(respIq instanceof ColibriConferenceIQ);
    ColibriConferenceIQ respConfIq = (ColibriConferenceIQ) respIq;

    assertEquals(
        RTPLevelRelayType.MIXER,
        respConfIq.getContents().get(0).getChannel(0).getRTPLevelRelayType());
  }