From 5cbcf148a1b341a4441736358ec78ebfed892cf4 Mon Sep 17 00:00:00 2001
From: Reminiscent <y870414423@gmail.com>
Date: Fri, 23 Sep 2022 15:42:10 +0800
Subject: [PATCH] fixut

---
 executor/insert_test.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/executor/insert_test.go b/executor/insert_test.go
index 8e83f03e0ffbf..a0294f48b03a5 100644
--- a/executor/insert_test.go
+++ b/executor/insert_test.go
@@ -365,7 +365,7 @@ func (s *testSuite3) TestIssue37187(c *C) {
 	tk.MustExec("create table t2 (c int(11) ,d varchar(100) ,primary key (c));")
 	tk.MustExec("prepare in1 from 'insert into t1 (a,b) select c,null from t2 t on duplicate key update b=t.d';")
 	err := tk.ExecToErr("execute in1;")
-	c.Assert(err, nil)
+	c.Assert(err, IsNil)
 }
 
 func (s *testSuite3) TestInsertWrongValueForField(c *C) {