1 files changed, 16 insertions, 0 deletions
diff --git a/nixos/lib/testing/call-test.nix b/nixos/lib/testing/call-test.nix
new file mode 100644
index 00000000000..3e137e78cd4
--- /dev/null
+++ b/nixos/lib/testing/call-test.nix
@@ -0,0 +1,16 @@
+{ config, lib, ... }:
+let
+  inherit (lib) mkOption types;
+in
+{
+  options = {
+    callTest = mkOption {
+      internal = true;
+      type = types.functionTo types.raw;
+    };
+    result = mkOption {
+      internal = true;
+      default = config;
+    };
+  };
+}