}

func TestConnPoolWrapper(t *testing.T) {
	dialect := os.Getenv("GORM_DIALECT")
	if dialect != "mysql" {
		t.SkipNow()
	}

	dbDSN := os.Getenv("GORM_DSN")
	if dbDSN == "" {
		dbDSN = "gorm:gorm@tcp(localhost:9910)/gorm?charset=utf8&parseTime=True&loc=Local"
	}
	nativeDB, err := sql.Open("mysql", dbDSN)
	if err != nil {
		t.Fatalf("Should open db success, but got %v", err)
	}

	conn := &wrapperConnPool{

	AssertEqual(t, u2.Mobile, "133xxxx")
}

func TestCreateFromMapWithoutPK(t *testing.T) {
	if !isMysql() {
		t.Skipf("This test case skipped, because of only supporting for mysql")
	}

	// case 1: one record, create from map[string]interface{}
	mapValue1 := map[string]interface{}{"name": "create_from_map_with_schema1", "age": 1}
	if err := DB.Model(&User{}).Create(mapValue1).Error; err != nil {

func (db *DB) SavePoint(name string) *DB {
	if savePointer, ok := db.Dialector.(SavePointerDialectorInterface); ok {
		// close prepared statement, because SavePoint not support prepared statement.
		// e.g. mysql8.0 doc: https://dev.mysql.com/doc/refman/8.0/en/sql-prepared-statements.html
		var (
			preparedStmtTx   *PreparedStmtTX
			isPreparedStmtTx bool
		)
		// close prepared statement, because SavePoint not support prepared statement.

package tests_test

import (
	"testing"

	"gorm.io/driver/mysql"

	"gorm.io/gorm"
)

func TestOpen(t *testing.T) {
	dsn := "gorm:gorm@tcp(localhost:9910)/gorm?loc=Asia%2FHongKong" // invalid loc
	_, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
	if err == nil {
		t.Fatalf("should returns error but got nil")
	}
}

func TestReturningWithNullToZeroValues(t *testing.T) {
	dialect := DB.Dialector.Name()
	switch dialect {

		t.Fatal("should not found dropped table")
	}
}

func TestMigrateWithQuotedIndex(t *testing.T) {
	if DB.Dialector.Name() != "mysql" {
		t.Skip()
	}

	type QuotedIndexStruct struct {
		gorm.Model
		Name string `gorm:"size:255;index:AS"` // AS is one of MySQL reserved words
	}

	if err := DB.Migrator().DropTable(&QuotedIndexStruct{}); err != nil {
		t.Fatalf("Failed to drop table, got error %v", err)

	}

	if name != "groupby" || active != true || total != 40 {
		t.Errorf("group by two columns, name %v, age %v, active: %v", name, total, active)
	}

	if DB.Dialector.Name() == "mysql" {
		if err := DB.Model(&User{}).Select("name, age as total").Where("name LIKE ?", "groupby%").Having("total > ?", 300).Scan(&result).Error; err != nil {
			t.Errorf("no error should happen, but got %v", err)
		}

		t.Skipf("This test case skipped, because of TiDB '%s'", reason)
	}
}

func isTiDB() bool {
	return os.Getenv("GORM_DIALECT") == "tidb"
}

func isMysql() bool {
	return os.Getenv("GORM_DIALECT") == "mysql"
}

func isSqlite() bool {
	return os.Getenv("GORM_DIALECT") == "sqlite"
}

func db(unscoped bool) *gorm.DB {
	if unscoped {
		return DB.Unscoped()
	} else {
		return DB
	}

	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"

package tests_test

import (
	"fmt"
	"testing"

	"gorm.io/driver/mysql"
	"gorm.io/gorm"
)

func TestWithSingleConnection(t *testing.T) {
	expectedName := "test"
	var actualName string

	setSQL, getSQL := getSetSQL(DB.Dialector.Name())
	if len(setSQL) == 0 || len(getSQL) == 0 {
		return
	}

	err := DB.Connection(func(tx *gorm.DB) error {
		if err := tx.Exec(setSQL, expectedName).Error; err != nil {
			return err

	}

	db, err := OpenTestConnection(&gorm.Config{TranslateError: true})
	if err != nil {
		t.Fatalf("failed to connect database, got error %v", err)
	}

	dialectors := map[string]bool{"sqlite": true, "postgres": true, "mysql": true, "sqlserver": true}
	if supported, found := dialectors[db.Dialector.Name()]; !(found && supported) {
		return
	}

	DB.Migrator().DropTable(&City{})

	if err = db.AutoMigrate(&City{}); err != nil {