nixos/tests/sunshine: fix test

- change text in `wait_for_console_text` to prevent sending curl with
pairing response before moonlight can accept it
- remove "close moonlight" step as next window stays on top in
fullscreen, previous window with pairing result does not interfere
with test. Otherwise it needs OCR or some other way to only do
`send_key("kp_enter")` after "Pairing complete" window is visible.
- add different ways to increase chances of successfull OCR: hide icewm
panel, gxmessage window takes full screen without titlebar or buttons,
black background, white foreground, consolas font,"ABC" text
- add `wait_for_console_text` to only run OCR after window is visible

nixos/tests/sunshine.nix

@@ -6,6 +6,7 @@ import ./make-test-python.nix (
       # test is flaky on aarch64
       broken = pkgs.stdenv.hostPlatform.isAarch64;
       maintainers = [ lib.maintainers.devusb ];
+      timeout = 600;
     };
 
     nodes.sunshine =
@@ -58,20 +59,23 @@ import ./make-test-python.nix (
 
       # initiate pairing from moonlight
       moonlight.execute("moonlight pair sunshine --pin 1234 >&2 & disown")
-      moonlight.wait_for_console_text("Executing request")
+      moonlight.wait_for_console_text("Executing request.*pair")
 
       # respond to pairing request from sunshine
-      sunshine.succeed("curl --insecure -u sunshine:sunshine -d '{\"pin\": \"1234\"}' https://localhost:47990/api/pin")
+      sunshine.succeed("curl --fail --insecure -u sunshine:sunshine -d '{\"pin\": \"1234\"}' https://localhost:47990/api/pin")
 
-      # close moonlight once pairing complete
-      moonlight.send_key("kp_enter")
+      # wait until pairing is complete
+      moonlight.wait_for_console_text("Executing request.*phrase=pairchallenge")
 
+      # hide icewm panel
+      sunshine.send_key("ctrl-alt-h")
       # put words on the sunshine screen for moonlight to see
-      sunshine.execute("gxmessage 'hello world' -center -font 'sans 75' >&2 & disown")
+      sunshine.execute("gxmessage ' ABC' -center -font 'consolas 100' -fg '#FFFFFF' -bg '#000000' -borderless -geometry '2000x2000' -buttons \"\" >&2 & disown")
 
       # connect to sunshine from moonlight and look for the words
       moonlight.execute("moonlight --video-decoder software stream sunshine 'Desktop' >&2 & disown")
-      moonlight.wait_for_text("hello world")
-    '';
+      moonlight.wait_for_console_text("Dropping window event during flush")
+      moonlight.wait_for_text("ABC")
+  '';
   }
 )