diff --git a/tests/daemon/face/datagram-transport.t.cpp b/tests/daemon/face/datagram-transport.t.cpp
index 535ea43..d6286eb 100644
--- a/tests/daemon/face/datagram-transport.t.cpp
+++ b/tests/daemon/face/datagram-transport.t.cpp
@@ -1,5 +1,5 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
+/*
  * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
@@ -76,10 +76,7 @@
   SKIP_IF_IP_UNAVAILABLE(this->defaultAddr);
   this->initialize(this->defaultAddr);
 
-  std::vector<uint8_t> buf{
-    0x05, 0x03, 0x00, 0x01,
-  };
-  this->remoteWrite(buf);
+  this->remoteWrite({0x05, 0x03, 0x00, 0x01});
 
   BOOST_CHECK_EQUAL(this->transport->getCounters().nInPackets, 0);
   BOOST_CHECK_EQUAL(this->transport->getCounters().nInBytes, 0);
@@ -95,8 +92,8 @@
   Block pkt1 = ndn::encoding::makeStringBlock(300, "hello");
   Block pkt2 = ndn::encoding::makeStringBlock(301, "world");
   ndn::Buffer buf(pkt1.size() + pkt2.size());
-  std::copy(pkt1.begin(), pkt1.end(), buf.buf());
-  std::copy(pkt2.begin(), pkt2.end(), buf.buf() + pkt1.size());
+  std::copy(pkt1.begin(), pkt1.end(), buf.begin());
+  std::copy(pkt2.begin(), pkt2.end(), buf.begin() + pkt1.size());
 
   this->remoteWrite(buf);
 
diff --git a/tests/daemon/face/lp-reliability.t.cpp b/tests/daemon/face/lp-reliability.t.cpp
index 5909737..16fb88f 100644
--- a/tests/daemon/face/lp-reliability.t.cpp
+++ b/tests/daemon/face/lp-reliability.t.cpp
@@ -134,7 +134,7 @@
 
     lp::Packet pkt;
     ndn::Buffer buf(payloadSize);
-    std::memcpy(buf.buf(), &pktNo, sizeof(pktNo));
+    std::memcpy(buf.data(), &pktNo, sizeof(pktNo));
     pkt.set<lp::FragmentField>(make_pair(buf.cbegin(), buf.cend()));
     return pkt;
   }
diff --git a/tests/daemon/face/stream-transport.t.cpp b/tests/daemon/face/stream-transport.t.cpp
index ad8d60c..81044d1 100644
--- a/tests/daemon/face/stream-transport.t.cpp
+++ b/tests/daemon/face/stream-transport.t.cpp
@@ -1,5 +1,5 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
+/*
  * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
@@ -111,8 +111,8 @@
   Block pkt1 = ndn::encoding::makeStringBlock(300, "hello");
   Block pkt2 = ndn::encoding::makeStringBlock(301, "world");
   ndn::Buffer buf(pkt1.size() + pkt2.size());
-  std::copy(pkt1.begin(), pkt1.end(), buf.buf());
-  std::copy(pkt2.begin(), pkt2.end(), buf.buf() + pkt1.size());
+  std::copy(pkt1.begin(), pkt1.end(), buf.begin());
+  std::copy(pkt2.begin(), pkt2.end(), buf.begin() + pkt1.size());
 
   this->remoteWrite(buf);