From 0776aa11c9e5864e8666dc9dfa670b55e9d6764f Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Mon, 15 Jan 2024 11:40:53 +0100
Subject: [PATCH] tests/check.sh: Fix a race

Based on 02dd6bb610e55a009cd7a4c83639698d3a7acaa2
---
 tests/add.sh    | 2 +-
 tests/check.nix | 2 +-
 tests/check.sh  | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/add.sh b/tests/add.sh
index e26e05843d7..5c3eed7931a 100644
--- a/tests/add.sh
+++ b/tests/add.sh
@@ -9,7 +9,7 @@ echo $path2
 if test "$path1" != "$path2"; then
     echo "nix-store --add and --add-fixed mismatch"
     exit 1
-fi    
+fi
 
 path3=$(nix-store --add-fixed sha256 ./dummy)
 echo $path3
diff --git a/tests/check.nix b/tests/check.nix
index 56c82e565a8..32f0f9733a6 100644
--- a/tests/check.nix
+++ b/tests/check.nix
@@ -11,7 +11,7 @@ with import ./config.nix;
   };
 
   hashmismatch = import <nix/fetchurl.nix> {
-    url = "file://" + toString ./dummy;
+    url = "file://" + builtins.getEnv "TMPDIR" + "/dummy";
     sha256 = "0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73";
   };
 
diff --git a/tests/check.sh b/tests/check.sh
index bc23a6634ca..45d29fd99a7 100644
--- a/tests/check.sh
+++ b/tests/check.sh
@@ -34,9 +34,9 @@ nix-build check.nix -A fetchurl --no-out-link --repair --hashed-mirrors ''
 nix-build check.nix -A hashmismatch --no-out-link --hashed-mirrors '' || status=$?
 [ "$status" = "102" ]
 
-echo -n > ./dummy
+echo -n > $TMPDIR/dummy
 nix-build check.nix -A hashmismatch --no-out-link --hashed-mirrors ''
-echo 'Hello World' > ./dummy
+echo 'Hello World' > $TMPDIR/dummy
 
 nix-build check.nix -A hashmismatch --no-out-link --check --hashed-mirrors '' || status=$?
 [ "$status" = "102" ]