From ec052f22befbc8630cf942cb0d6499ffaf135b3d Mon Sep 17 00:00:00 2001
From: Benedikt Peetz <benedikt.peetz@b-peetz.de>
Date: Fri, 2 Oct 2026 00:28:49 +0200
Subject: tests/default: Warn, when a name value pair, contains more names

Otherwise, this leads to really confusing errors.
---
 tests/default.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/default.nix b/tests/default.nix
index 9bab516..af9cdd3 100644
--- a/tests/default.nix
+++ b/tests/default.nix
@@ -4,7 +4,12 @@
   pkgs,
 }: let
   splitAttr = attr: let
-    name = builtins.elemAt (builtins.attrNames attr) 0;
+    pairs = builtins.attrNames attr;
+    firstName = builtins.elemAt pairs 0;
+    name =
+      if (builtins.length pairs) == 1
+      then firstName
+      else builtins.throw "The name value pair (`${firstName}` and some more) has more than one name value pair.";
   in {
     inherit name;
     value = attr.${name};
-- 
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