face: Connect faces to the parent (unicast) or associated (multicast) channels

Change-Id: Ie7b2e8fb60050a2bc6e4f5ad053c26e121f3c3d5
Refs: #4973
diff --git a/tests/daemon/face/websocket-channel.t.cpp b/tests/daemon/face/websocket-channel.t.cpp
index 0631efa..d9fe929 100644
--- a/tests/daemon/face/websocket-channel.t.cpp
+++ b/tests/daemon/face/websocket-channel.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2019,  Regents of the University of California,
+ * Copyright (c) 2014-2020,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -88,9 +88,10 @@
                                   2_s), LimitedIo::EXCEED_OPS);
   BOOST_CHECK_EQUAL(listenerChannel->size(), 3);
 
-  // check face persistency
+  // check face persistency and channel association
   for (const auto& face : listenerFaces) {
     BOOST_CHECK_EQUAL(face->getPersistency(), ndn::nfd::FACE_PERSISTENCY_ON_DEMAND);
+    BOOST_CHECK_EQUAL(face->getChannel().lock(), listenerChannel);
   }
 }
 
@@ -152,6 +153,8 @@
   SKIP_IF_IP_UNAVAILABLE(address);
   this->initialize(address);
 
+  BOOST_CHECK_EQUAL(listenerFaces.at(0)->getChannel().lock(), listenerChannel);
+
   listenerFaces.at(0)->close();
   BOOST_CHECK_EQUAL(listenerChannel->size(), 0);
 }