From b2038f120cf106984853bbfd2af5ff4cb7ca0943 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 1 Apr 2025 13:58:56 +0200
Subject: [PATCH] Add test for source path display

---
 tests/functional/flakes/meson.build     |  3 ++-
 tests/functional/flakes/source-paths.sh | 30 +++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 tests/functional/flakes/source-paths.sh

diff --git a/tests/functional/flakes/meson.build b/tests/functional/flakes/meson.build
index 74ff3d91d..b8c650db4 100644
--- a/tests/functional/flakes/meson.build
+++ b/tests/functional/flakes/meson.build
@@ -29,7 +29,8 @@ suites += {
     'non-flake-inputs.sh',
     'relative-paths.sh',
     'symlink-paths.sh',
-    'debugger.sh'
+    'debugger.sh',
+    'source-paths.sh',
   ],
   'workdir': meson.current_source_dir(),
 }
diff --git a/tests/functional/flakes/source-paths.sh b/tests/functional/flakes/source-paths.sh
new file mode 100644
index 000000000..a3ebf4e3a
--- /dev/null
+++ b/tests/functional/flakes/source-paths.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+source ./common.sh
+
+requireGit
+
+repo=$TEST_ROOT/repo
+
+createGitRepo "$repo"
+
+cat > "$repo/flake.nix" <<EOF
+{
+  outputs = { ... }: {
+    x = 1;
+    y = assert false; 1;
+  };
+}
+EOF
+
+expectStderr 1 nix eval "$repo#x" | grepQuiet "error: path '$repo/flake.nix' does not exist"
+
+git -C "$repo" add flake.nix
+
+[[ $(nix eval "$repo#x") = 1 ]]
+
+expectStderr 1 nix eval "$repo#y" | grepQuiet "at $repo/flake.nix:"
+
+git -C "$repo" commit -a -m foo
+
+expectStderr 1 nix eval "git+file://$repo?ref=master#y" | grepQuiet "at «git+file://$repo?ref=master&rev=.*»/flake.nix:"