face: use NetworkMonitor::listNetworkInterfaces() in tests

refs #4021

Change-Id: I6daccc3872a0c6b2e2e49390bc5881c796503926
diff --git a/tests/daemon/face/ethernet-channel.t.cpp b/tests/daemon/face/ethernet-channel.t.cpp
index af9f788..78f5015 100644
--- a/tests/daemon/face/ethernet-channel.t.cpp
+++ b/tests/daemon/face/ethernet-channel.t.cpp
@@ -38,7 +38,7 @@
   makeChannel()
   {
     BOOST_ASSERT(netifs.size() > 0);
-    return make_unique<EthernetChannel>(netifs.front().asNetworkInterface(), time::seconds(2));
+    return make_unique<EthernetChannel>(netifs.front(), time::seconds(2));
   }
 };
 
@@ -50,7 +50,7 @@
   SKIP_IF_ETHERNET_NETIF_COUNT_LT(1);
 
   auto channel = makeChannel();
-  BOOST_CHECK_EQUAL(channel->getUri(), FaceUri::fromDev(netifs.front().name));
+  BOOST_CHECK_EQUAL(channel->getUri(), FaceUri::fromDev(netifs.front()->getName()));
 }
 
 BOOST_AUTO_TEST_CASE(Listen)