1 files changed, 28 insertions, 0 deletions
diff --git a/lib/tests/modules/optionTypeFile.nix b/lib/tests/modules/optionTypeFile.nix
new file mode 100644
index 00000000000..6015d59a72c
--- /dev/null
+++ b/lib/tests/modules/optionTypeFile.nix
@@ -0,0 +1,28 @@
+{ config, lib, ... }: {
+
+  _file = "optionTypeFile.nix";
+
+  options.theType = lib.mkOption {
+    type = lib.types.optionType;
+  };
+
+  options.theOption = lib.mkOption {
+    type = config.theType;
+    default = {};
+  };
+
+  config.theType = lib.mkMerge [
+    (lib.types.submodule {
+      options.nested = lib.mkOption {
+        type = lib.types.int;
+      };
+    })
+    (lib.types.submodule {
+      _file = "other.nix";
+      options.nested = lib.mkOption {
+        type = lib.types.str;
+      };
+    })
+  ];
+
+}