3 files changed, 39 insertions, 0 deletions
diff --git a/lib/tests/modules/declare-enable-nested.nix b/lib/tests/modules/declare-enable-nested.nix
new file mode 100644
index 0000000000000..c8da8273cba14
--- /dev/null
+++ b/lib/tests/modules/declare-enable-nested.nix
@@ -0,0 +1,14 @@
+{ lib, ... }:
+
+{
+  options.set = {
+    enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+      description = ''
+        Some descriptive text
+      '';
+    };
+  };
+}
diff --git a/lib/tests/modules/declare-int-positive-value-nested.nix b/lib/tests/modules/declare-int-positive-value-nested.nix
new file mode 100644
index 0000000000000..72d2fb89fc3bf
--- /dev/null
+++ b/lib/tests/modules/declare-int-positive-value-nested.nix
@@ -0,0 +1,9 @@
+{ lib, ... }:
+
+{
+  options.set = {
+    value = lib.mkOption {
+      type = lib.types.ints.positive;
+    };
+  };
+}
diff --git a/lib/tests/modules/define-option-dependently-nested.nix b/lib/tests/modules/define-option-dependently-nested.nix
new file mode 100644
index 0000000000000..69ee4255534a3
--- /dev/null
+++ b/lib/tests/modules/define-option-dependently-nested.nix
@@ -0,0 +1,16 @@
+{ lib, options, ... }:
+
+# Some modules may be distributed separately and need to adapt to other modules
+# that are distributed and versioned separately.
+{
+
+  # Always defined, but the value depends on the presence of an option.
+  config.set = {
+    value = if options ? set.enable then 360 else 7;
+  }
+  # Only define if possible.
+  // lib.optionalAttrs (options ? set.enable) {
+    enable = true;
+  };
+
+}