From e293397af559edeb53a1b4ca9bc3ebb9fcfba3bc Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Tue, 31 Oct 2023 23:59:14 +0100
Subject: [PATCH] haskellPackages.changelog-d: Add basic test

(cherry picked from commit 662c0011576e46b2b35c398b655e970afc3f4195)
---
 .../misc/haskell/changelog-d/default.nix      | 27 ++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/misc/haskell/changelog-d/default.nix b/pkgs/development/misc/haskell/changelog-d/default.nix
index ffdeb843b3fd..e4ba565808cf 100644
--- a/pkgs/development/misc/haskell/changelog-d/default.nix
+++ b/pkgs/development/misc/haskell/changelog-d/default.nix
@@ -3,7 +3,7 @@
 , pkgs
 }:
 
-(callPackage ./changelog-d.nix { }).overrideAttrs (oldAttrs: {
+(callPackage ./changelog-d.nix { }).overrideAttrs (finalAttrs: oldAttrs: {
 
   version = oldAttrs.version + "-git-${lib.strings.substring 0 7 oldAttrs.src.rev}";
 
@@ -17,6 +17,31 @@
       cabal2nix https://codeberg.org/fgaz/changelog-d >changelog-d.nix
     '';
   });
+  passthru.tests = {
+    basic = pkgs.runCommand "changelog-d-basic-test" {
+        nativeBuildInputs = [ finalAttrs.finalPackage ];
+      } ''
+        mkdir changelogs
+        cat > changelogs/config <<EOF
+        organization: NixOS
+        repository: boondoggle
+        EOF
+        cat > changelogs/a <<EOF
+        synopsis: Support numbers with incrementing base-10 digits
+        issues: #1234
+        description: {
+        This didn't work before.
+        }
+        EOF
+        changelog-d changelogs >$out
+        cat -n $out
+        echo Checking the generated output
+        set -x
+        grep -F 'Support numbers with incrementing base-10 digits' $out >/dev/null
+        grep -F 'https://github.com/NixOS/boondoggle/issues/1234' $out >/dev/null
+        set +x
+      '';
+  };
 
   meta = oldAttrs.meta // {
     homepage = "https://codeberg.org/fgaz/changelog-d";