From 7358d217cf50fe5763e8bd638c7344443f44e133 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Thu, 5 Sep 2024 16:48:43 +0200
Subject: [PATCH] Test that nix-store --restore fails if the output already
 exists

This restores the behaviour from before the std::filesystem
refactorings.

(cherry picked from commit da1ad28912334bb57f923afb4745273fd68f695c)
---
 tests/functional/nars.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/functional/nars.sh b/tests/functional/nars.sh
index ba5a69bd2..eaf9cd4e5 100755
--- a/tests/functional/nars.sh
+++ b/tests/functional/nars.sh
@@ -8,6 +8,9 @@ clearStore
 rm -rf "$TEST_ROOT/out"
 expectStderr 1 nix-store --restore "$TEST_ROOT/out" < duplicate.nar | grepQuiet "NAR directory is not sorted"
 
+# Check that nix-store --restore fails if the output already exists.
+expectStderr 1 nix-store --restore "$TEST_ROOT/out" < duplicate.nar | grepQuiet "path '.*/out/' already exists"
+
 # Check whether restoring and dumping a NAR that contains case
 # collisions is round-tripping, even on a case-insensitive system.
 rm -rf "$TEST_ROOT/case"