fixup tests

modules/base.nix

@@ -0,0 +1,39 @@
+{ config, lib, ... }:
+
+with lib;
+
+{
+  options = {
+    kubenix.project = mkOption {
+      description = "Name of the project";
+      type = types.str;
+      default = "kubenix";
+    };
+
+    _m.features = mkOption {
+      description = "List of features exposed by module";
+      type = types.listOf types.str;
+      default = [ ];
+    };
+
+    _m.propagate = mkOption {
+      description = "Module propagation options";
+      type = types.listOf (types.submodule ({ config, ... }: {
+        options = {
+          features = mkOption {
+            description = "List of features that submodule has to have to propagate module";
+            type = types.listOf types.str;
+            default = [ ];
+          };
+
+          module = mkOption {
+            description = "Module to propagate";
+            type = types.unspecified;
+            default = { };
+          };
+        };
+      }));
+      default = [ ];
+    };
+  };
+}