nixosTests.gnome: fix

GNOME Shell 41 made the Eval command we use for NixOS tests internal
so in order to be still able to use it, we need to run the shell
in an unsafe mode.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1970
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1983

Hopefully, the test driver will eventually get better so that
we will not need hacks like this forever.

1 files changed, 15 insertions, 0 deletions

diff --git a/nixos/tests/gnome.nix b/nixos/tests/gnome.nix
index e8d18a41bd064..1da97f733cfd8 100644
--- a/nixos/tests/gnome.nix
+++ b/nixos/tests/gnome.nix
@@ -30,6 +30,21 @@ import ./make-test-python.nix ({ pkgs, lib, ...} : {
         })
       ];
 
+      systemd.user.services = {
+        "org.gnome.Shell@wayland" = {
+          serviceConfig = {
+            ExecStart = [
+              # Clear the list before overriding it.
+              ""
+              # Eval API is now internal so Shell needs to run in unsafe mode.
+              # TODO: improve test driver so that it supports openqa-like manipulation
+              # that would allow us to drop this mess.
+              "${pkgs.gnome.gnome-shell}/bin/gnome-shell --unsafe-mode"
+            ];
+          };
+        };
+      };
+
       virtualisation.memorySize = 1024;
     };