t.Fatalf("Build count with select, but got %v", result.Statement.SQL.String())
	}

	var count4 int64
	if err := DB.Table("users").Joins("LEFT JOIN companies on companies.name = users.name").Where("users.name = ?", user1.Name).Count(&count4).Error; err != nil || count4 != 1 {
		t.Errorf("count with join, got error: %v, count %v", err, count4)
	}

	var count5 int64

			names := strings.Split(chk, ",")
			if len(names) > 1 && regEnLetterAndMidline.MatchString(names[0]) {
				checks[names[0]] = CheckConstraint{Name: names[0], Constraint: strings.Join(names[1:], ","), Field: field}
			} else {
				if names[0] == "" {
					chk = strings.Join(names[1:], ",")
				}
				name := schema.namer.CheckerName(schema.Table, field.DBName)
				checks[name] = CheckConstraint{Name: name, Constraint: chk, Field: field}
			}
		}

			}

			if r.JoinTable != nil {
				if r.JoinTable.Name != relation.JoinTable.Name {
					t.Errorf("schema %v relation's join table name expects %v, but got %v", s, relation.JoinTable.Name, r.JoinTable.Name)
				}

				if r.JoinTable.Table != relation.JoinTable.Table {
					t.Errorf("schema %v relation's join table tablename expects %v, but got %v", s, relation.JoinTable.Table, r.JoinTable.Table)
				}

## Overview

* Full-Featured ORM
* Associations (Has One, Has Many, Belongs To, Many To Many, Polymorphism, Single-table inheritance)
* Hooks (Before/After Create/Save/Update/Delete/Find)
* Eager loading with `Preload`, `Joins`
* Transactions, Nested Transactions, Save Point, RollbackTo to Saved Point
* Context, Prepared Statement Mode, DryRun Mode
* Batch Insert, FindInBatches, Find To Map

					names[i] = ""
				} else {
					break
				}
			}
		}

		values := strings.Split(names[j], ":")
		k := strings.TrimSpace(strings.ToUpper(values[0]))

		if len(values) >= 2 {
			settings[k] = strings.Join(values[1:], ":")
		} else if k != "" {
			settings[k] = k
		}
	}

	return settings
}

func toColumns(val string) (results []string) {
	if val != "" {
		for _, v := range strings.Split(val, ",") {

			k := strings.TrimSpace(strings.ToUpper(v[0]))
			if k == "INDEX" || k == "UNIQUEINDEX" {
				var (
					name       string
					tag        = strings.Join(v[1:], ":")
					idx        = strings.Index(tag, ",")
					tagSetting = strings.Join(strings.Split(tag, ",")[1:], ",")
					settings   = ParseTagSetting(tagSetting, ",")
					length, _  = strconv.Atoi(settings["LENGTH"])
				)

				if idx == -1 {

		default:
			results[idx] = "nil"
			vv := reflect.ValueOf(v)
			if vv.IsValid() && !vv.IsZero() {
				results[idx] = fmt.Sprint(reflect.Indirect(vv).Interface())
			}
		}
	}

	return strings.Join(results, "_")
}

func Contains(elems []string, elem string) bool {
	for _, e := range elems {
		if elem == e {
			return true
		}
	}
	return false
}

func AssertEqual(x, y interface{}) bool {

		log.Println("testing tidb...")
		if dbDSN == "" {
			dbDSN = tidbDSN
		}
		db, err = gorm.Open(mysql.Open(dbDSN), cfg)
	default:
		log.Println("testing sqlite3...")
		db, err = gorm.Open(sqlite.Open(filepath.Join(os.TempDir(), "gorm.db")), cfg)
		if err == nil {
			db.Exec("PRAGMA foreign_keys = ON")
		}
	}

	if err != nil {
		return
	}

	if debug := os.Getenv("DEBUG"); debug == "true" {

}

// ColumnName convert string to column name
func (ns NamingStrategy) ColumnName(table, column string) string {
	return ns.toDBName(column)
}

// JoinTableName convert string to join table name
func (ns NamingStrategy) JoinTableName(str string) string {
	if !ns.NoLowerCase && strings.ToLower(str) == str {
		return ns.TablePrefix + str
	}

	if ns.SingularTable {