Integration test: fix teardown of test_expiration_date_post_2038

The test moves the date in the future, performs checks and in the
teardown method uninstalls and moves the date back to the current time.

It often fails in the teardown part because certmonger is in the process
of renewing the expired certificates.
Apply the same strategy as other tests fiddling with the date:
stop certmonger and remove the tracking requests before uninstallation.

Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipatests/test_integration/test_commands.py

@@ -217,6 +217,14 @@ def expire_password():
     yield _expire_password
 
     host = hosts.pop('host')
+    # Prior to uninstall remove all the cert tracking to prevent
+    # errors from certmonger trying to check the status of certs
+    # that don't matter because we are uninstalling.
+    host.run_command(['systemctl', 'stop', 'certmonger'])
+    # Important: run_command with a str argument is able to
+    # perform shell expansion but run_command with a list of
+    # arguments is not
+    host.run_command('rm -fv ' + paths.CERTMONGER_REQUESTS_DIR + '*')
     tasks.uninstall_master(host)
     tasks.move_date(host, 'start', '-20Years')