nullTime := sql.NullTime{}
	err := nullTime.Scan(v)
	t.Time = nullTime.Time
	return err
}

func (t EmptyTime) Value() (driver.Value, error) {
	return time.Now() /* pass tests, mysql 8 doesn't support 0000-00-00 by default */, nil
}

type NullString struct {
	sql.NullString
}

type Point struct {
	X, Y int
}

func (point Point) GormDataType() string {
	return "geo"
}

import (
	"database/sql/driver"
	"fmt"
	"reflect"
	"regexp"
	"strconv"
	"strings"
	"time"
	"unicode"

	"gorm.io/gorm/utils"
)

const (
	tmFmtWithMS = "2006-01-02 15:04:05.999"
	tmFmtZero   = "0000-00-00 00:00:00"
	nullStr     = "NULL"
)

func isPrintable(s string) bool {
	for _, r := range s {
		if !unicode.IsPrint(r) {
			return false
		}
	}
	return true
}

	if err := DB.AutoMigrate(&AddressByZipCode{}); err != nil {
		t.Fatalf("failed to migrate, got error %v", err)
	}

	address := AddressByZipCode{ZipCode: "00501", Address: "Holtsville"}
	DB.Create(&address)

	var result AddressByZipCode
	DB.First(&result, "00501")

	AssertEqual(t, result, address)
}

func TestSearchWithEmptyChain(t *testing.T) {
	user := User{Name: "search_with_empty_chain", Age: 1}