From 7130e4bde71016e4e27e775830ddf1c73db9d1fa Mon Sep 17 00:00:00 2001
From: Ewan Chou <coocood@gmail.com>
Date: Tue, 22 Dec 2015 21:38:10 +0800
Subject: [PATCH] tide-server: avoid panic when failed in SetupSuite.

Have taken a look at `go check` source code, `TearDownSuite` will always be called even if it failed in `SetUpSuite`.
---
 tidb-server/server/tidb_test.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tidb-server/server/tidb_test.go b/tidb-server/server/tidb_test.go
index e60ec6d025..adb0a2f371 100644
--- a/tidb-server/server/tidb_test.go
+++ b/tidb-server/server/tidb_test.go
@@ -43,7 +43,9 @@ func (ts *TidbTestSuite) SetUpSuite(c *C) {
 }
 
 func (ts *TidbTestSuite) TearDownSuite(c *C) {
-	ts.server.Close()
+	if ts.server != nil {
+		ts.server.Close()
+	}
 }
 
 func (ts *TidbTestSuite) TestRegression(c *C) {