fix(reliability): supervisor re-parks stock-resurrected dummy STA on interval

tests/test_health.py

@@ -1,6 +1,7 @@
 import os
 import sys
 import unittest
+from unittest import mock
 
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'payload', 'user', 'remote_access', 'pager-webui'))
 import server
@@ -150,6 +151,25 @@ class SupervisorExtrasTest(unittest.TestCase):
         open(path, 'w').write(content)
         self.assertEqual(server._mem_percent(path), 60)
 
+    def test_health_reparks_resurrected_dummy_sta(self):
+        server._health['ticks'] = server.HEALTH_STA_PARK_INTERVAL - 1
+        with mock.patch.object(
+                server, '_sta_uplink_enabled', return_value=True), \
+             __import__('unittest').mock.patch.object(
+                server, '_park_dummy_sta') as park:
+            h = server.health_check()
+            park.assert_called_once()
+            self.assertEqual(server._health['ticks'],
+                             server.HEALTH_STA_PARK_INTERVAL)
+        # not on interval ticks: no re-park
+        server._health['ticks'] = 1
+        with mock.patch.object(
+                server, '_sta_uplink_enabled', return_value=True), \
+             __import__('unittest').mock.patch.object(
+                server, '_park_dummy_sta') as park:
+            server.health_check()
+            park.assert_not_called()
+
     def test_health_reports_events_and_counters(self):
         import mk8_events
         mk8_events.log_event('restart', msg='x')