* Refactoring: renamed *.nix.in to *.nix.

tests/user-envs.nix

@@ -0,0 +1,28 @@
+# Some dummy arguments...
+{ foo ? "foo"
+}:
+
+with import ./config.nix;
+
+assert foo == "foo";
+
+let
+
+  makeDrv = name: progName: (mkDerivation {
+    inherit name progName system;
+    builder = ./user-envs.builder.sh;
+  } // {
+    meta = {
+      description = "A silly test package";
+    };
+  });
+
+in
+
+  [
+    (makeDrv "foo-1.0" "foo")
+    (makeDrv "foo-2.0pre1" "foo")
+    (makeDrv "bar-0.1" "bar")
+    (makeDrv "foo-2.0" "foo")
+    (makeDrv "bar-0.1.1" "bar")
+  ]