Adds tests

Author: angerman

default.nix

@@ -134,7 +134,7 @@ let
 
     # Takes a haskell src directory runs cabal new-configure and plan-to-nix.
     # Resulting nix files are added to nix-plan subdirectory.
-    cabalProjectToNix = import ./lib/cabalProjectToNix.nix {
+    callCabalProjectToNix = import ./lib/cabalProjectToNix.nix {
       inherit mkHackageIndex;
       inherit pkgs;
       inherit (pkgs) runCommand cabal-install ghc;

test/default.nix

@@ -16,6 +16,7 @@ in {
   builder-haddock = haskell.callPackage ./builder-haddock {};
   stack-simple = haskell.callPackage ./stack-simple {};
   callStackToNix = haskell.callPackage ./callStackToNix {};
+  callCabalProjectToNix = haskell.callPackage ./call-cabal-project-to-nix {};
 
   # Run unit tests with: nix-instantiate --eval --strict -A unit
   # An empty list means success.