From 50b049554fed51cade556c62c60b1605ef9825ec Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Fri, 14 Oct 2022 02:29:46 +0200
Subject: [PATCH] postgresqlPackages.plv8: Add regression tests

This is based on postgresqlPackages.age.
---
 .../sql/postgresql/ext/plv8/default.nix       | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/pkgs/servers/sql/postgresql/ext/plv8/default.nix b/pkgs/servers/sql/postgresql/ext/plv8/default.nix
index 91eb31c91641..931a5deb40f1 100644
--- a/pkgs/servers/sql/postgresql/ext/plv8/default.nix
+++ b/pkgs/servers/sql/postgresql/ext/plv8/default.nix
@@ -100,6 +100,35 @@ stdenv.mkDerivation (finalAttrs: {
           grep -q "${finalAttrs.version}" "$out"
           kill -0 "$pid"
         '';
+
+        regression = stdenv.mkDerivation {
+          name = "plv8-regression";
+          inherit (finalAttrs) src patches nativeBuildInputs buildInputs dontConfigure;
+
+          buildPhase = ''
+            runHook preBuild
+
+            # The regression tests need to be run in the order specified in the Makefile.
+            echo -e "include Makefile\nprint_regress_files:\n\t@echo \$(REGRESS)" > Makefile.regress
+            REGRESS_TESTS=$(make -f Makefile.regress print_regress_files)
+
+            ${postgresql}/lib/pgxs/src/test/regress/pg_regress \
+              --bindir='${postgresqlWithSelf}/bin' \
+              --temp-instance=regress-instance \
+              --dbname=contrib_regression \
+              $REGRESS_TESTS
+
+            runHook postBuild
+          '';
+
+          installPhase = ''
+            runHook preInstall
+
+            touch "$out"
+
+            runHook postInstall
+          '';
+        };
       };
   };