commit be7882be27237e7803c0b8411335f66594729175
Author: Rodolfo Alonso Hernandez <ralonsoh@redhat.com>
Date:   Thu Oct 1 15:46:19 2020 +0000

    Do not update agents "alive" state in TestAgentApi
    
    During the execution of FT TestAgentApi, we should not update the
    chassis agents "alive" state; during the FT execution, some of the
    agents returned by "agents_from_chassis" do not really exist (not
    relevant for the test case).
    
    Change-Id: Ied5bdca2a3b3832f11d42614d609d0849111ae1a
    Closes-Bug: #1897921

diff --git a/neutron/tests/functional/plugins/ml2/drivers/ovn/mech_driver/test_mech_driver.py b/neutron/tests/functional/plugins/ml2/drivers/ovn/mech_driver/test_mech_driver.py
index 7f0efa2..f7135bb 100644
--- a/neutron/tests/functional/plugins/ml2/drivers/ovn/mech_driver/test_mech_driver.py
+++ b/neutron/tests/functional/plugins/ml2/drivers/ovn/mech_driver/test_mech_driver.py
@@ -754,6 +754,8 @@ class TestAgentApi(base.TestOVNFunctionalBase):
         agent = {'agent_type': 'test', 'binary': '/bin/test',
                  'host': self.host, 'topic': 'test_topic'}
         self.plugin.create_or_update_agent(self.context, agent)
+        mock.patch.object(self.mech_driver, 'ping_all_chassis',
+                          return_value=False).start()
 
     def get_agent(self, agent_type):
         return next(iter(self.plugin.get_agents(