smoketest: T5783: check for any abnormal daemon termination

We need to ensure when stressing FRR with the smoketests that no unexpected
crash happens. We simply verify the PID of the individual FRR daemons.

1 files changed, 7 insertions, 3 deletions

diff --git a/smoketest/scripts/cli/test_protocols_ospfv3.py b/smoketest/scripts/cli/test_protocols_ospfv3.py
index 0d6c6c691..4ae7f05d9 100755
--- a/smoketest/scripts/cli/test_protocols_ospfv3.py
+++ b/smoketest/scripts/cli/test_protocols_ospfv3.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2021-2022 VyOS maintainers and contributors
+# Copyright (C) 2021-2023 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -35,6 +35,9 @@ class TestProtocolsOSPFv3(VyOSUnitTestSHIM.TestCase):
     def setUpClass(cls):
         super(TestProtocolsOSPFv3, cls).setUpClass()
 
+        # Retrieve FRR daemon PID - it is not allowed to crash, thus PID must remain the same
+        cls.daemon_pid = process_named_running(PROCESS_NAME)
+
         cls.cli_set(cls, ['policy', 'route-map', route_map, 'rule', '10', 'action', 'permit'])
         cls.cli_set(cls, ['policy', 'route-map', route_map, 'rule', '20', 'action', 'permit'])
 
@@ -48,11 +51,12 @@ class TestProtocolsOSPFv3(VyOSUnitTestSHIM.TestCase):
         super(TestProtocolsOSPFv3, cls).tearDownClass()
 
     def tearDown(self):
-        # Check for running process
-        self.assertTrue(process_named_running(PROCESS_NAME))
         self.cli_delete(base_path)
         self.cli_commit()
 
+        # check process health and continuity
+        self.assertEqual(self.daemon_pid, process_named_running(PROCESS_NAME))
+
     def test_ospfv3_01_basic(self):
         seq = '10'
         prefix = '2001:db8::/32'