diff tests/test-push-race.t @ 34507:30ae924a9e00

test-push-race: use 'ui.atexit' instead of python's 'atexit'

Callbacks registered with 'atexit' are sometimes not called (like when a
process is killed by the SIGTERM signal). Therefore, this commit replaces it
with 'ui.atexit' which ensures that the callbacks are always called. This also
makes the test compatible with chg.

Test Plan:
Ran the test 'test-push-race.t' with and without the '--chg' option.

Differential Revision: https://phab.mercurial-scm.org/D957

--- a/tests/test-push-race.t	Mon Oct 02 04:48:06 2017 +0530
+++ b/tests/test-push-race.t	Thu Oct 05 20:46:49 2017 +0000
@@ -15,7 +15,6 @@
   > Client with the extensions will create a file when ready and get stuck until
   > a file is created."""
   > 
-  > import atexit
   > import errno
   > import os
   > import time
@@ -51,7 +50,7 @@
   >                 except OSError as exc:
   >                     if exc.errno != errno.ENOENT:
   >                         raise
-  >             atexit.register(delete)
+  >             ui.atexit(delete)
   >     return orig(pushop)
   > 
   > def uisetup(ui):