try kde

tests/kolide-launcher.nix

@@ -25,14 +25,15 @@ pkgs.nixosTest {
 
     services.xserver.enable = true;
     services.xserver.displayManager = {
-      lightdm.enable = true;
       autoLogin = {
         enable = true;
         user = "alice";
       };
     };
-    services.xserver.desktopManager.mate.enable = true;
-    services.xserver.desktopManager.mate.debug = true;
+    services.xserver.displayManager.sddm.enable = true;
+    services.xserver.displayManager.defaultSession = "plasma";
+    services.xserver.desktopManager.plasma5.enable = true;
+    environment.plasma5.excludePackages = [ pkgs.plasma5Packages.elisa ];
 
     # This just quiets some log spam we don't care about
     hardware.pulseaudio.enable = true;
@@ -54,20 +55,21 @@ pkgs.nixosTest {
       if "${ci}":
         machine.start()
 
-        with subtest("log in to MATE"):
-          machine.wait_for_unit("display-manager.service", timeout=120)
-          machine.wait_for_file("${xauthority}")
-          machine.succeed("xauth merge ${xauthority}")
-          machine.wait_until_succeeds("pgrep marco")
-          machine.wait_for_window("marco")
-          machine.wait_until_succeeds("pgrep mate-panel")
-          machine.wait_for_window("Top Panel")
-          machine.wait_for_window("Bottom Panel")
-          machine.wait_until_succeeds("pgrep caja")
-          machine.wait_for_window("Caja")
+        with subtest("KDE setup"):
+          machine.wait_for_file("/tmp/xauth_*")
+          machine.succeed("xauth merge /tmp/xauth_*")
           machine.sleep(20)
           machine.screenshot("test-screen1.png")
 
+          machine.wait_until_succeeds("pgrep plasmashell")
+          machine.wait_for_window("^Desktop ")
+          machine.screenshot("test-screen2.png")
+
+          machine.succeed("pgrep kded5")
+          machine.succeed("getfacl -p /dev/snd/timer | grep -q ${user.name}")
+          machine.succeed("su - ${user.name} -c 'xauth merge /tmp/xauth_*'")
+          machine.screenshot("test-screen25.png")
+
         with subtest("set up secret file"):
           machine.copy_from_host("${./test-secret}", "/etc/kolide-k2/secret")