Fix TestOVNMechanismDriver ipv6 tests

- test_update_subnet_dhcp_options_in_ovn_ipv6_not_change
- test_enable_subnet_dhcp_options_in_ovn_ipv6
This tests will fail if host where unit tests has ipv6 dns_servers
configured. This patch mocks get_system_dns_servers to avoid tests
to look at the host configuration.

Closes-Bug: #2056778
Change-Id: I2e703ab4b63c90d7a14f0dc41d37b0a98163bce0
(cherry picked from commit 2a196fefd4)
(cherry picked from commit a8bf8cdaa6)
This commit is contained in:
Arnau Verdaguer 2024-03-11 17:30:11 +01:00 committed by yatin
parent ca25eb96f1
commit de9e3e8c9b
1 changed files with 6 additions and 2 deletions

View File

@ -1515,9 +1515,10 @@ class TestOVNMechanismDriver(TestOVNMechanismDriverBase):
self.mech_driver.nb_ovn.set_lswitch_port.assert_has_calls(
set_lsp_calls, any_order=True)
@mock.patch.object(ovn_utils, 'get_system_dns_resolvers')
@mock.patch.object(db_base_plugin_v2.NeutronDbPluginV2, 'get_ports')
@mock.patch.object(n_net, 'get_random_mac')
def test_enable_subnet_dhcp_options_in_ovn_ipv6(self, grm, gps):
def test_enable_subnet_dhcp_options_in_ovn_ipv6(self, grm, gps, gsd):
grm.return_value = '01:02:03:04:05:06'
gps.return_value = [
{'id': 'port-id-1', 'device_owner': 'nova:compute'},
@ -1530,6 +1531,7 @@ class TestOVNMechanismDriver(TestOVNMechanismDriverBase):
{'opt_value': '10::34', 'ip_version': 6,
'opt_name': 'dns-server'}]},
{'id': 'port-id-10', 'device_owner': 'network:foo'}]
gsd.return_value = []
subnet = {'id': 'subnet-id', 'ip_version': 6, 'cidr': '10::0/64',
'gateway_ip': '10::1', 'enable_dhcp': True,
'ipv6_address_mode': 'dhcpv6-stateless',
@ -1696,7 +1698,9 @@ class TestOVNMechanismDriver(TestOVNMechanismDriverBase):
self.mech_driver.nb_ovn.add_dhcp_options.assert_called_once_with(
subnet['id'], **new_options)
def test_update_subnet_dhcp_options_in_ovn_ipv6_not_change(self):
@mock.patch.object(ovn_utils, 'get_system_dns_resolvers')
def test_update_subnet_dhcp_options_in_ovn_ipv6_not_change(self, gsd):
gsd.return_value = []
subnet = {'id': 'subnet-id', 'ip_version': 6, 'cidr': '10::0/64',
'gateway_ip': '10::1', 'enable_dhcp': True,
'ipv6_address_mode': 'dhcpv6-stateless',