From 737a21794cd05ab53dcca4b5b68c5c45ddcb3c41 Mon Sep 17 00:00:00 2001
From: lassulus <git@lassul.us>
Date: Thu, 20 Jul 2023 21:33:13 +0200
Subject: [PATCH] lib makeDiskoTest: set networking.hostId to non null value

---
 lib/tests.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/tests.nix b/lib/tests.nix
index ba40265..959e389 100644
--- a/lib/tests.nix
+++ b/lib/tests.nix
@@ -172,7 +172,9 @@ let
             connect-timeout = 1;
           };
 
-          networking.hostId = lib.mkIf (testConfigInstall ? networking.hostId) testConfigInstall.networking.hostId;
+          networking.hostId = lib.mkIf (
+            (testConfigInstall ? networking.hostId) && (testConfigInstall.networking.hostId != null)
+          ) testConfigInstall.networking.hostId;
 
           virtualisation.emptyDiskImages = builtins.genList (_: 4096) num-disks;