diff --git a/Makefile.conf b/Makefile.conf
index 658919e..ad57f57 100644
--- a/Makefile.conf
+++ b/Makefile.conf
@@ -1,5 +1,5 @@
 # Copyright 2018, pEp Foundation
-# This file is part of lib pEp Adapter
+# This file is part of libpEpAdapter
 # This file may be used under the terms of the GNU General Public License version 3
 # see LICENSE.txt
 
diff --git a/test/framework.cc b/test/framework.cc
index 99cb9b4..70bb0a1 100644
--- a/test/framework.cc
+++ b/test/framework.cc
@@ -1,5 +1,7 @@
-#include "framework.hh"
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
 
+#include "framework.hh"
 #include <iostream>
 #include <fstream>
 #include <sstream>
@@ -83,7 +85,10 @@ namespace pEp {
             ifstream f(filename, ifstream::in);
             string key{ istreambuf_iterator<char>(f), istreambuf_iterator<char>() };
             ::identity_list *il = NULL;
+            cout << key.c_str() << endl;
+            cout << key.length() << endl;
             ::PEP_STATUS status = ::import_key(session(), key.c_str(), key.length(), &il);
+            throw_status(status);
             assert(status == PEP_KEY_IMPORTED);
             ::free_identity_list(il);
         }
diff --git a/test/framework.hh b/test/framework.hh
index 2f3b97a..9b04a6b 100644
--- a/test/framework.hh
+++ b/test/framework.hh
@@ -1,5 +1,6 @@
 // This file is under GNU General Public License 3.0
 // see LICENSE.txt
+
 #ifndef LIBPEPADAPTER_FRAMEWORK_HH
 #define LIBPEPADAPTER_FRAMEWORK_HH
 
diff --git a/test/test_ensure_passphrase.cc b/test/test_ensure_passphrase.cc
index d00ea8f..a4cfa9f 100644
--- a/test/test_ensure_passphrase.cc
+++ b/test/test_ensure_passphrase.cc
@@ -1,3 +1,6 @@
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
+
 #include <iostream>
 #include <fstream>
 #include <sstream>
diff --git a/test/test_leave_device_group.cc b/test/test_leave_device_group.cc
index 2e7fb97..33bdac5 100644
--- a/test/test_leave_device_group.cc
+++ b/test/test_leave_device_group.cc
@@ -1,3 +1,6 @@
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
+
 #include <iostream>
 #include <vector>
 #include <unistd.h>
diff --git a/test/test_library.cc b/test/test_library.cc
index 522279a..900772c 100644
--- a/test/test_library.cc
+++ b/test/test_library.cc
@@ -1,3 +1,6 @@
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
+
 #include "pc_container.hh"
 #include <cstdio>
 #include <cstdlib>
diff --git a/test/test_message_cache.cc b/test/test_message_cache.cc
index e5d1243..a7d275a 100644
--- a/test/test_message_cache.cc
+++ b/test/test_message_cache.cc
@@ -1,3 +1,6 @@
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
+
 #include "framework.hh"
 #include <iostream>
 #include <cassert>
diff --git a/test/test_passphrase_cache.cc b/test/test_passphrase_cache.cc
index 3de8a11..32ca34e 100644
--- a/test/test_passphrase_cache.cc
+++ b/test/test_passphrase_cache.cc
@@ -1,3 +1,6 @@
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
+
 #include "framework.hh"
 
 #include <iostream>
diff --git a/test/test_semaphore.cc b/test/test_semaphore.cc
index 658f2c3..55196b6 100644
--- a/test/test_semaphore.cc
+++ b/test/test_semaphore.cc
@@ -1,3 +1,6 @@
+// This file is under GNU General Public License 3.0
+// see LICENSE.txt
+
 #include <iostream>
 #include <thread>
 #include <unistd.h>