1 files changed, 63 insertions, 0 deletions
diff --git a/nixpkgs/nixos/tests/mate-wayland.nix b/nixpkgs/nixos/tests/mate-wayland.nix
new file mode 100644
index 000000000000..df39ead286e1
--- /dev/null
+++ b/nixpkgs/nixos/tests/mate-wayland.nix
@@ -0,0 +1,63 @@
+import ./make-test-python.nix ({ pkgs, lib, ... }: {
+  name = "mate-wayland";
+
+  meta.maintainers = lib.teams.mate.members;
+
+  nodes.machine = { ... }: {
+    imports = [
+      ./common/user-account.nix
+    ];
+
+    services.xserver.enable = true;
+    services.xserver.displayManager = {
+      sddm.enable = true; # https://github.com/canonical/lightdm/issues/63
+      sddm.wayland.enable = true;
+      defaultSession = "MATE";
+      autoLogin = {
+        enable = true;
+        user = "alice";
+      };
+    };
+    services.xserver.desktopManager.mate.enableWaylandSession = true;
+
+    hardware.pulseaudio.enable = true;
+
+    # Need to switch to a different GPU driver than the default one (-vga std) so that wayfire can launch:
+    virtualisation.qemu.options = [ "-vga none -device virtio-gpu-pci" ];
+  };
+
+  enableOCR = true;
+
+  testScript = { nodes, ... }:
+    let
+      user = nodes.machine.users.users.alice;
+    in
+    ''
+      machine.wait_for_unit("display-manager.service")
+
+      with subtest("Wait for Wayland server"):
+          machine.wait_for_file("/run/user/${toString user.uid}/wayland-1")
+
+      with subtest("Check if MATE session components actually start"):
+          for i in ["wayfire", "mate-panel", "mate-wayland.sh", "mate-wayland-components.sh"]:
+              machine.wait_until_succeeds(f"pgrep -f {i}")
+          machine.wait_for_text('(Applications|Places|System)')
+          # It is expected that this applet doesn't work in Wayland
+          machine.wait_for_text('WorkspaceSwitcherApplet')
+
+      with subtest("Check if various environment variables are set"):
+          cmd = "xargs --null --max-args=1 echo < /proc/$(pgrep -xf mate-panel)/environ"
+          machine.succeed(f"{cmd} | grep 'XDG_SESSION_TYPE' | grep 'wayland'")
+          machine.succeed(f"{cmd} | grep 'XDG_SESSION_DESKTOP' | grep 'MATE'")
+          machine.succeed(f"{cmd} | grep 'MATE_PANEL_APPLETS_DIR' | grep '${pkgs.mate.mate-panel-with-applets.pname}'")
+
+      with subtest("Check if Wayfire config is properly configured"):
+          for i in ["button_style = mate", "firedecor", "mate-wayland-components.sh"]:
+              machine.wait_until_succeeds(f"cat /home/${user.name}/.config/mate/wayfire.ini | grep '{i}'")
+
+      with subtest("Check if Wayfire has ever coredumped"):
+          machine.fail("coredumpctl --json=short | grep wayfire")
+          machine.sleep(10)
+          machine.screenshot("screen")
+    '';
+})