[sheepdog] [PATCH 5/5] test/func: add test case for duplicated snapshot tag

[Ruoyu]

Signed-off-by: Ruoyu <liangry at ucweb.com>
---
 tests/functional/016     | 1 +
 tests/functional/016.out | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tests/functional/016 b/tests/functional/016
index ca20a71..98f685d 100755
--- a/tests/functional/016
+++ b/tests/functional/016
@@ -14,6 +14,7 @@ _cluster_format -c 6
 _vdi_create base 100M -P
 
 $DOG vdi snapshot base -s tag
+$DOG vdi snapshot base -s tag
 
 sleep 1
 
diff --git a/tests/functional/016.out b/tests/functional/016.out
index 1423522..ab648d4 100644
--- a/tests/functional/016.out
+++ b/tests/functional/016.out
@@ -1,5 +1,6 @@
 QA output created by 016
 using backend plain store
+Failed to create snapshot for base, maybe snapshot id (0) or tag (tag) is existed
 there should be no vdi
   Name        Id    Size    Used  Shared    Creation time   VDI id  Copies  Tag
 there should be no object
-- 
1.8.3.2