1 files changed, 34 insertions, 0 deletions
diff --git a/home-manager/tests/lib/types/list-or-dag-merge.nix b/home-manager/tests/lib/types/list-or-dag-merge.nix
new file mode 100644
index 00000000000..08216140e53
--- /dev/null
+++ b/home-manager/tests/lib/types/list-or-dag-merge.nix
@@ -0,0 +1,34 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  dag = config.lib.dag;
+
+  result = let
+    sorted = dag.topoSort config.tested.dag;
+    data = map (e: "${e.name}:${e.data}") sorted.result;
+  in concatStringsSep "\n" data + "\n";
+
+in {
+  options.tested.dag = mkOption { type = hm.types.listOrDagOf types.str; };
+
+  config = {
+    tested = mkMerge [
+      { dag = [ "k" "l" ]; }
+      { dag = [ "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" ]; }
+      { dag.after = "after"; }
+      { dag.before = dag.entryBefore [ "after" ] "before"; }
+      { dag.between = dag.entryBetween [ "after" ] [ "before" ] "between"; }
+    ];
+
+    home.file."result.txt".text = result;
+
+    nmt.script = ''
+      assertFileContent \
+        home-files/result.txt \
+        ${./list-or-dag-merge-result.txt}
+    '';
+  };
+}