From a3fcd6d6be65b88d8b8240eac700192f33262d4e Mon Sep 17 00:00:00 2001
From: wangyu <wangyu@cmss.chinamobile.com>
Date: Thu, 12 Sep 2019 15:51:51 +0800
Subject: [PATCH] Fix unit tests failed

if flow is None for add_tasks when running unit tests,
the method 'add' for flow  will be failed. this patch
will fix it.

Change-Id: I1bd70cea69cc54bea34de4b655f6d7caecfdf0e2
---
 karbor/tests/unit/protection/fakes.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/karbor/tests/unit/protection/fakes.py b/karbor/tests/unit/protection/fakes.py
index 4099399c..5350b5a4 100644
--- a/karbor/tests/unit/protection/fakes.py
+++ b/karbor/tests/unit/protection/fakes.py
@@ -323,6 +323,7 @@ class FakeFlowEngine(object):
     def add_tasks(self, flow, *nodes, **kwargs):
         if flow is None:
             LOG.error("The flow is None, get it first")
+            return
         flow.add(*nodes, **kwargs)
 
     def link_task(self, flow, u, v):