diff --git a/bsc/cn6/default.nix b/bsc/cn6/default.nix
index 7263c1a..4fcc74d 100644
--- a/bsc/cn6/default.nix
+++ b/bsc/cn6/default.nix
@@ -3,8 +3,18 @@
 , babeltrace2
 , pkg-config
 , uthash
+, enableTest ? false
+, mpi ? null
+, clangOmpss2 ? null
+, tampi ? null
 }:
 
+with stdenv.lib;
+
+assert (enableTest -> (mpi != null));
+assert (enableTest -> (clangOmpss2 != null));
+assert (enableTest -> (tampi != null));
+
 stdenv.mkDerivation rec {
   pname = "cn6";
   version = "${src.shortRev}";
@@ -13,7 +23,8 @@ stdenv.mkDerivation rec {
     babeltrace2
     pkg-config
     uthash
-  ];
+    mpi
+  ] ++ optionals (enableTest) [ mpi clangOmpss2 tampi ];
 
   src = builtins.fetchGit {
     url = "ssh://git@bscpm03.bsc.es/rarias/cn6.git";
@@ -22,4 +33,18 @@ stdenv.mkDerivation rec {
   };
 
   makeFlags = [ "PREFIX=$(out)" ];
+
+  postBuild = optionalString (enableTest) ''
+    (
+      cd test
+      make timediff timediff_mpi
+    )
+  '';
+
+  postInstall = optionalString (enableTest) ''
+    (
+      cd test
+      cp timediff timediff_mpi sync-err.sh $out/bin/
+    )
+  '';
 }