From 46b4a9d74a1b78978a8058eac07feaea613bf096 Mon Sep 17 00:00:00 2001
From: Yorick van Pelt <yorick@yorickvanpelt.nl>
Date: Tue, 11 Oct 2022 13:01:23 +0200
Subject: [PATCH] pimilter: fix some tests using libredirect

---
 pkgs/development/python-modules/pymilter/default.nix | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/pymilter/default.nix b/pkgs/development/python-modules/pymilter/default.nix
index 6362ba2cfb35..46ca3d27c3aa 100644
--- a/pkgs/development/python-modules/pymilter/default.nix
+++ b/pkgs/development/python-modules/pymilter/default.nix
@@ -1,4 +1,4 @@
-{ lib, python, buildPythonPackage, fetchFromGitHub, libmilter, bsddb3, pydns }:
+{ lib, python, buildPythonPackage, fetchFromGitHub, libmilter, bsddb3, pydns, iana-etc, libredirect }:
 
 buildPythonPackage rec {
   pname = "pymilter";
@@ -19,7 +19,15 @@ buildPythonPackage rec {
   '';
 
   # requires /etc/resolv.conf
-  doCheck = false;
+  # testpolicy: requires makemap (#100419)
+  #   using exec -a makemap smtpctl results in "unknown group smtpq"
+  preCheck = ''
+    echo "nameserver 127.0.0.1" > resolv.conf
+    export NIX_REDIRECTS=/etc/protocols=${iana-etc}/etc/protocols:/etc/resolv.conf=$(realpath resolv.conf)
+    export LD_PRELOAD=${libredirect}/lib/libredirect.so
+    sed -i '/testpolicy/d' test.py
+    rm testpolicy.py
+  '';
 
   meta = with lib; {
     homepage = "http://bmsi.com/python/milter.html";