further update and rename files

Change-Id: Ie664c5b9e5a764b8706d21cc85b9cec8755dc380
diff --git a/tests/unit-tests/configuration.t.cpp b/tests/unit-tests/configuration.t.cpp
index 7d5c901..eb9619b 100644
--- a/tests/unit-tests/configuration.t.cpp
+++ b/tests/unit-tests/configuration.t.cpp
@@ -19,7 +19,7 @@
  */
 
 #include "configuration.hpp"
-#include "detail/info-encoder.hpp"
+#include "protocol-detail/info-encoder.hpp"
 #include "test-common.hpp"
 
 namespace ndn {