api: Use new callback interfaces

Change-Id: I1871df54c3061c0c8d5765ff69207b8307bc7569
diff --git a/tests/test_socket.cc b/tests/test_socket.cc
index fd17c44..60a87f3 100644
--- a/tests/test_socket.cc
+++ b/tests/test_socket.cc
@@ -138,14 +138,14 @@
 class TestSet1{
 public:
   TestSet1(ndn::shared_ptr<boost::asio::io_service> ioService)
-    : m_syncPrefix("/let/us/sync")
-    , m_validator(new ndn::ValidatorNull())
+    : m_validator(new ndn::ValidatorNull())
     , m_face1(new ndn::Face(ioService))
     , m_face2(new ndn::Face(ioService))
     , m_face3(new ndn::Face(ioService))
     , m_p1("/irl.cs.ucla.edu")
     , m_p2("/yakshi.org")
     , m_p3("/google.com")
+    , m_syncPrefix("/let/us/sync")
   {}
 
   void
@@ -250,12 +250,12 @@
 class TestSet2{
 public:
   TestSet2(ndn::shared_ptr<boost::asio::io_service> ioService)
-    : m_syncPrefix("/this/is/the/prefix")
-    , m_validator(new ndn::ValidatorNull())
+    : m_validator(new ndn::ValidatorNull())
     , m_face1(new ndn::Face(ioService))
     , m_face2(new ndn::Face(ioService))
     , m_p1("/xiaonei.com")
     , m_p2("/mitbbs.com")
+    , m_syncPrefix("/this/is/the/prefix")
   {}
 
   void