manager: test process exclusion (#29586)

* add test

* add comment

* Update selfdrive/manager/test/test_manager.py

* more accurate
old-commit-hash: 84b897cf44104d964834979d6fc34822baa999bf

selfdrive/manager/test/test_manager.py

@@ -16,6 +16,7 @@ os.environ['FAKEUPLOAD'] = "1"
 MAX_STARTUP_TIME = 3
 BLACKLIST_PROCS = ['manage_athenad', 'pandad', 'pigeond']
 
+
 class TestManager(unittest.TestCase):
   def setUp(self):
     os.environ['PASSIVE'] = '0'
@@ -32,6 +33,10 @@ class TestManager(unittest.TestCase):
     os.environ['PREPAREONLY'] = '1'
     manager.main()
 
+  def test_blacklisted_procs(self):
+    # TODO: ensure there are blacklisted procs until we have a dedicated test
+    self.assertTrue(len(BLACKLIST_PROCS), "No blacklisted procs to test not_run")
+
   def test_startup_time(self):
     for _ in range(10):
       start = time.monotonic()
@@ -59,6 +64,8 @@ class TestManager(unittest.TestCase):
         self.assertTrue(state.running, f"{p.name} not running")
         exit_code = p.stop(retry=False)
 
+        self.assertNotIn(p.name, BLACKLIST_PROCS, f"{p.name} was started")
+
         # TODO: mapsd should exit cleanly
         if p.name == "mapsd":
           continue