def test_datasource_sub(self):
node = helper.make_dsenode_new_partition('testnode')
nova_client = mock.MagicMock()
with mock.patch.object(novaclient.client.Client, '__init__',
return_value=nova_client):
nova = NovaDriver(
name='nova', args=helper.datasource_openstack_args())
test = FakeDataSource('test')
node.register_service(nova)
node.register_service(test)
nova.subscribe('test', 'p')
helper.retry_check_function_return_value(
lambda: hasattr(nova, 'last_msg'), True)
test.publish('p', 42)
helper.retry_check_function_return_value(
lambda: nova.last_msg['data'], 42)
self.assertFalse(hasattr(test, "last_msg"))
