merge detail folders

Change-Id: Id8f126bb4f4dd621f224d3d705b22f85e00babad
diff --git a/tests/unit-tests/ca-memory.t.cpp b/tests/unit-tests/ca-memory.t.cpp
index 83c8f00..b2de610 100644
--- a/tests/unit-tests/ca-memory.t.cpp
+++ b/tests/unit-tests/ca-memory.t.cpp
@@ -18,8 +18,8 @@
  * See AUTHORS.md for complete list of ndncert authors and contributors.
  */
 
-#include "ca-detail/ca-memory.hpp"
-#include "ca-detail/ca-sqlite.hpp"
+#include "detail/ca-memory.hpp"
+#include "detail/ca-sqlite.hpp"
 #include "test-common.hpp"
 
 namespace ndn {