nixos/tests/ringboard: make more resistant against race condition (#462163)

nixos/tests/ringboard.nix

@@ -6,7 +6,7 @@
 }:
 {
   name = "ringboard";
-  meta = { inherit (pkgs.ringboard.meta) maintainers; };
+  meta.maintainers = pkgs.ringboard.meta.maintainers ++ (with lib.maintainers; [ h7x4 ]);
 
   nodes.machine = {
     imports = [
@@ -17,12 +17,14 @@
     test-support.displayManager.auto.user = "alice";
 
     services.xserver.displayManager.sessionCommands = ''
-      '${lib.getExe pkgs.gedit}' &
+      '${lib.getExe pkgs.gedit}' my_document &
     '';
 
     services.ringboard.x11.enable = true;
   };
 
+  enableOCR = true;
+
   testScript =
     { nodes, ... }:
     let
@@ -31,7 +33,8 @@
     ''
       @polling_condition
       def gedit_running():
-        machine.succeed("pgrep gedit")
+        "Check that gedit is running and visible to the user"
+        machine.wait_for_text("my_document")
 
       with subtest("Wait for service startup"):
         machine.wait_for_unit("graphical.target")
@@ -40,10 +43,12 @@
 
       with subtest("Ensure clipboard is monitored"):
         with gedit_running: # type: ignore[union-attr]
-          machine.send_chars("Hello world!")
+          machine.send_chars("Hello world!", delay=0.1)
+          machine.sleep(1)
           machine.send_key("ctrl-a")
+          machine.sleep(1)
           machine.send_key("ctrl-c")
-          machine.wait_for_console_text("Small selection transfer complete")
-          machine.succeed("su - '${user}' -c 'ringboard search Hello | grep world!'")
+        machine.wait_until_succeeds("su - '${user}' -c 'journalctl --user -u ringboard-listener.service --grep \'Small selection transfer complete\'''", timeout=60)
+        machine.succeed("su - '${user}' -c 'ringboard search Hello | grep world!'")
     '';
 }