From c58aa8a50a6def6855fa01b13e210450454c6c25 Mon Sep 17 00:00:00 2001
From: xiekeyang <xiekeyang@huawei.com>
Date: Mon, 22 Feb 2016 15:24:49 +0800
Subject: [PATCH] compare error output in tagstore unit test

Signed-off-by: xiekeyang <xiekeyang@huawei.com>
---
 docs/storage/tagstore_test.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/storage/tagstore_test.go b/docs/storage/tagstore_test.go
index 52873a696..554a46bf7 100644
--- a/docs/storage/tagstore_test.go
+++ b/docs/storage/tagstore_test.go
@@ -98,8 +98,9 @@ func TestTagStoreUnTag(t *testing.T) {
 		t.Error(err)
 	}
 
+	errExpect := distribution.ErrTagUnknown{Tag: "latest"}.Error()
 	_, err = tags.Get(ctx, "latest")
-	if err == nil {
+	if err == nil || err.Error() != errExpect {
 		t.Error("Expected error getting untagged tag")
 	}
 }