From 4a80c92a4dcff9cde9892383c4e5d2c101eb6cda Mon Sep 17 00:00:00 2001
From: Taeer Bar-Yam <taeer.bar-yam@bevuta.com>
Date: Mon, 27 Oct 2025 23:05:24 +0100
Subject: [PATCH] add test for no formals case

---
 .../functional/lang/eval-fail-empty-formals.err.exp  | 12 ++++++++++++
 tests/functional/lang/eval-fail-empty-formals.nix    |  1 +
 2 files changed, 13 insertions(+)
 create mode 100644 tests/functional/lang/eval-fail-empty-formals.err.exp
 create mode 100644 tests/functional/lang/eval-fail-empty-formals.nix

diff --git a/tests/functional/lang/eval-fail-empty-formals.err.exp b/tests/functional/lang/eval-fail-empty-formals.err.exp
new file mode 100644
index 000000000..5cd4829f7
--- /dev/null
+++ b/tests/functional/lang/eval-fail-empty-formals.err.exp
@@ -0,0 +1,12 @@
+error:
+       … from call site
+         at /pwd/lang/eval-fail-empty-formals.nix:1:1:
+            1| (foo@{ }: 1) { a = 3; }
+             | ^
+            2|
+
+       error: function 'anonymous lambda' called with unexpected argument 'a'
+       at /pwd/lang/eval-fail-empty-formals.nix:1:2:
+            1| (foo@{ }: 1) { a = 3; }
+             |  ^
+            2|
diff --git a/tests/functional/lang/eval-fail-empty-formals.nix b/tests/functional/lang/eval-fail-empty-formals.nix
new file mode 100644
index 000000000..597f40496
--- /dev/null
+++ b/tests/functional/lang/eval-fail-empty-formals.nix
@@ -0,0 +1 @@
+(foo@{ }: 1) { a = 3; }