pollXhrRegisterChannelIdResponse(factory, sessionUrl);
final FullHttpResponse unregisterChannelIdRequest = unregisterChannelIdRequest(factory, sessionUrl, channelId);
assertThat(unregisterChannelIdRequest.getStatus(), is(HttpResponseStatus.NO_CONTENT));
final UnregisterResponseImpl unregisterChannelIdResponse = unregisterChannelIdResponse(factory, sessionUrl);
assertThat(unregisterChannelIdResponse.getStatus().getCode(), is(200));
assertThat(unregisterChannelIdResponse.getChannelId(), equalTo(channelId));
}