From 41bdf429ecc6cb7a1ebdd004649c3cec0511ab22 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Mon, 13 Jul 2020 13:32:33 +0200
Subject: [PATCH] Add a test for NAR listing generation

---
 tests/binary-cache.sh | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/tests/binary-cache.sh b/tests/binary-cache.sh
index 17b63d978..28af3ca5e 100644
--- a/tests/binary-cache.sh
+++ b/tests/binary-cache.sh
@@ -182,3 +182,22 @@ clearCacheCache
 nix-store -r $outPath --substituters "file://$cacheDir2 file://$cacheDir" --trusted-public-keys "$publicKey"
 
 fi # HAVE_LIBSODIUM
+
+
+unset _NIX_FORCE_HTTP
+
+
+# Test NAR listing generation.
+clearCache
+
+outPath=$(nix-build --no-out-link -E '
+  with import ./config.nix;
+  mkDerivation {
+    name = "nar-listing";
+    buildCommand = "mkdir $out; echo foo > $out/bar; ln -s xyzzy $out/link";
+  }
+')
+
+nix copy --to file://$cacheDir?write-nar-listing=1 $outPath
+
+[[ $(cat $cacheDir/$(basename $outPath).ls) = '{"version":1,"root":{"type":"directory","entries":{"bar":{"type":"regular","size":4,"narOffset":232},"link":{"type":"symlink","target":"xyzzy"}}}}' ]]