if !regexp.MustCompile(`.*age.*=8,`).MatchString(sql) {
		t.Errorf("Failed to generate sql, got %v", sql)
	}

	stmt = dryRunDB.Model(&user).Where("id = ?", 1).Updates(map[string]interface{}{"age": ageUint64(10241024)}).Statement
	sql = DB.Dialector.Explain(stmt.SQL.String(), stmt.Vars...)
	if !regexp.MustCompile(`.*age.*=10241024,`).MatchString(sql) {
		t.Errorf("Failed to generate sql, got %v", sql)
	}

	if !regexp.MustCompile("SELECT \\* FROM `user`").MatchString(r.Statement.SQL.String()) {
		t.Errorf("Table with escape character, got %v", r.Statement.SQL.String())
	}

	r = dryDB.Table("user as u").Select("name").Find(&User{}).Statement
	if !regexp.MustCompile("SELECT .name. FROM user as u WHERE .u.\\..deleted_at. IS NULL").MatchString(r.Statement.SQL.String()) {

		t.Errorf("Failed to generate sql, got %v", stmt.SQL.String())
	}

	if !regexp.MustCompile(`INSERT INTO .user_with_points. \(.name.,.point.\) VALUES \(.+,ST_PointFromText\(.+\)\)`).MatchString(stmt.SQL.String()) {
		t.Errorf("insert with sql.Expr, but got %v", stmt.SQL.String())
	}

	if !reflect.DeepEqual([]interface{}{"jinzhu", "POINT(100 100)"}, stmt.Vars) {

	if r, err := json.Marshal(&user); err != nil {
		t.Errorf("failed to marshal users, got error %v", err)
	} else if !regexp.MustCompile(`"Team":\[\],"Languages":\[\],"Friends":\[\]`).MatchString(string(r)) {
		t.Errorf("json marshal is not empty slice, got %v", string(r))
	}

	var results []User
	DB.Preload("Team").Preload("Languages").Preload("Friends").Find(&results, "name = ?", user.Name)

	if !regexp.MustCompile("SELECT .* FROM .users. left join pets.*join accounts.*").MatchString(stmt.SQL.String()) {
		t.Errorf("joins should be ordered, but got %v", stmt.SQL.String())
	}

		if !regexp.MustCompile(`INTO .restricted_languages. .*\(.code.,.name.,.lang.\) .* (SET|UPDATE) .name.=.*.name.\W*$`).MatchString(r.Statement.SQL.String()) {
			t.Errorf("Table with escape character, got %v", r.Statement.SQL.String())
		}
	}

	user := *GetUser("upsert_on_conflict", Config{})
	user.Age = 20

	defer func() {
		globalMinioPort = tempGlobalMinioPort
	}()
	globalMinioPort = "9000"

	// Filter ipList by IPs those do not start with '127.'.
	nonLoopBackIPs := localIP4.FuncMatch(func(ip string, matchString string) bool {
		return !net.ParseIP(ip).IsLoopback()
	}, "")
	if len(nonLoopBackIPs) == 0 {
		t.Fatalf("No non-loop back IP address found for this host")
	}
	nonLoopBackIP := nonLoopBackIPs.ToSlice()[0]

	stmt := dryDB.Save(&user).Statement
	if !regexp.MustCompile(`.users.\..deleted_at. IS NULL`).MatchString(stmt.SQL.String()) {
		t.Fatalf("invalid updating SQL, got %v", stmt.SQL.String())
	}

	dryDB = DB.Session(&gorm.Session{DryRun: true})
	stmt = dryDB.Unscoped().Save(&user).Statement
	if !regexp.MustCompile(`WHERE .id. = [^ ]+$`).MatchString(stmt.SQL.String()) {
		t.Fatalf("invalid updating SQL, got %v", stmt.SQL.String())
	}

			"user_id": gorm.Expr("@uid"),
		},
	})

	if !regexp.MustCompile(`INSERT INTO .pets. \(.name.,.user_id.\) .*VALUES \(.+,\(SELECT @uid:=id FROM \(SELECT id FROM .users. WHERE name=.+\) as tmp\)\),\(.+,@uid\)`).MatchString(result.Statement.SQL.String()) {
		t.Errorf("invalid insert SQL, got %v", result.Statement.SQL.String())
	}
}

func TestCreateNilPointer(t *testing.T) {
	var user *User

	err := DB.Create(user).Error

	// In order to avoid the performance problems caused by repeated compilation of regular expressions,
	// it only needs to be done once outside, so optimization is done here.
	if idx != -1 && regEnLetterAndMidline.MatchString(str[0:idx]) {
		name = str[0:idx]
	} else {
		name = rel.Schema.namer.RelationshipFKName(*rel)
	}

	constraint := Constraint{
		Name:     name,
		Field:    rel.Field,