[gnome-settings-daemon/benzea/tests-output-checker] XXX: Add some debug printign

[Benjamin Berg <bberg src gnome org>]

commit 21f46af1c539055e44ab10c69d9be3da70d86a4e
Author: Benjamin Berg <bberg redhat com>
Date:   Mon Feb 15 12:59:08 2021 +0100

    XXX: Add some debug printign

 tests/output_checker.py | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/tests/output_checker.py b/tests/output_checker.py
index 334be83d..d90ffba4 100644
--- a/tests/output_checker.py
+++ b/tests/output_checker.py
@@ -143,8 +143,11 @@ class OutputChecker(object):
             raise AssertionError("OutputCheck: Write side has not been closed yet!")
 
     def force_close(self):
+        print("force closing pipe %d", self._pipe_fd_r);
         os.close(self._pipe_fd_r)
+        print("pipe closed, waiting");
         self._thread.join()
+        print("reader thread joined");
 
     @property
     def fd(self):