// Database
	CurrentDatabase() string
	FullDataTypeOf(*schema.Field) clause.Expr
	GetTypeAliases(databaseTypeName string) []string

	// Tables
	CreateTable(dst ...interface{}) error
	DropTable(dst ...interface{}) error
	HasTable(dst interface{}) bool
	RenameTable(oldName, newName interface{}) error
	GetTables() (tableList []string, err error)
	TableType(dst interface{}) (TableType, error)

	// Columns

	}

	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 {
		t.Fatalf("failed to migrate cities table, got error: %v", err)
	}

	err = db.Create(&City{Name: "Kabul"}).Error
	if err != nil {

	return fmt.Sprintf("%s%s", c.prefix, fieldValue), nil
}

func TestSerializer(t *testing.T) {
	schema.RegisterSerializer("custom", NewCustomSerializer("hello"))
	DB.Migrator().DropTable(adaptorSerializerModel(&SerializerStruct{}))
	if err := DB.Migrator().AutoMigrate(adaptorSerializerModel(&SerializerStruct{})); err != nil {
		t.Fatalf("no error should happen when migrate scanner, valuer struct, got error %v", err)

	Age        *time.Time
	unexported string // unexported value
	CreatedAt  time.Time
	UpdatedAt  time.Time
}

func TestNonStdPrimaryKeyAndDefaultValues(t *testing.T) {
	DB.Migrator().DropTable(&Animal{})
	if err := DB.AutoMigrate(&Animal{}); err != nil {
		t.Fatalf("no error should happen when migrate but got %v", err)
	}

	animal := Animal{Name: "Ferdinand"}
	DB.Save(&animal)

	"gorm.io/gorm"
	. "gorm.io/gorm/utils/tests"
)

func TestNamedArg(t *testing.T) {
	type NamedUser struct {
		gorm.Model
		Name1 string
		Name2 string
		Name3 string
	}

	DB.Migrator().DropTable(&NamedUser{})
	DB.AutoMigrate(&NamedUser{})

	namedUser := NamedUser{Name1: "jinzhu1", Name2: "jinzhu2", Name3: "jinzhu3"}
	DB.Create(&namedUser)

	var result NamedUser

		Name3   string    `gorm:"size:233;notNull;default:''"`
		Age     int       `gorm:"default:18"`
		Created time.Time `gorm:"default:2000-01-02"`
		Enabled bool      `gorm:"default:true"`
	}

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

	if err := DB.AutoMigrate(&Harumph{}); err != nil {
		t.Fatalf("Failed to migrate with default value, got error: %v", err)
	}

	harumph := Harumph{Email: "******@****.***"}

		stmt.Parse(&Blog{})
		stmt.Schema.LookUpField("ID").Unique = true
		stmt.Parse(&Tag{})
		stmt.Schema.LookUpField("ID").Unique = true
		// postgers only allow unique constraint matching given keys
	}

	DB.Migrator().DropTable(&Blog{}, &Tag{}, "blog_tags", "locale_blog_tags", "shared_blog_tags")
	if err := DB.AutoMigrate(&Blog{}, &Tag{}); err != nil {
		t.Fatalf("Failed to auto migrate, got error: %v", err)
	}

	blog := Blog{
		Locale:  "ZH",

		}

		for _, pet := range pets {
			CheckPet(t, *pet, *pet)
		}
	})
}

func TestCreateEmptyStruct(t *testing.T) {
	type EmptyStruct struct {
		ID uint
	}
	DB.Migrator().DropTable(&EmptyStruct{})

	if err := DB.AutoMigrate(&EmptyStruct{}); err != nil {
		t.Errorf("no error should happen when auto migrate, but got %v", err)
	}

	if err := DB.Create(&EmptyStruct{}).Error; err != nil {

func TestSoftDeleteZeroValue(t *testing.T) {
	type SoftDeleteBook struct {
		ID        uint
		Name      string
		Pages     uint
		DeletedAt gorm.DeletedAt `gorm:"zeroValue:'1970-01-01 00:00:01'"`
	}
	DB.Migrator().DropTable(&SoftDeleteBook{})
	if err := DB.AutoMigrate(&SoftDeleteBook{}); err != nil {
		t.Fatalf("failed to auto migrate soft delete table")
	}

	book := SoftDeleteBook{Name: "jinzhu", Pages: 10}
	DB.Save(&book)

	ID   uint
	Name string
}

type PersonAddress struct {
	PersonID  int
	AddressID int
	CreatedAt time.Time
	DeletedAt gorm.DeletedAt
}

func TestOverrideJoinTable(t *testing.T) {
	DB.Migrator().DropTable(&Person{}, &Address{}, &PersonAddress{})

	if err := DB.SetupJoinTable(&Person{}, "Addresses", &PersonAddress{}); err != nil {
		t.Fatalf("Failed to setup join table for person, got error %v", err)
	}