diff --git a/tests/interface_test.go b/tests/interface_test.go
deleted file mode 100644
index a484a5b5..00000000
--- a/tests/interface_test.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package tests_test
-
-import (
-	"testing"
-
-	"gorm.io/gorm/utils/tests"
-	. "gorm.io/gorm/utils/tests"
-)
-
-func TestInterface(t *testing.T) {
-	vehicleWrite := &tests.Vehicle{Meta: &tests.MotorMeta{Power: "electric"}}
-
-	if err := DB.Create(vehicleWrite).Error; err != nil {
-		t.Fatalf("fail to create region %v", err)
-	}
-
-	vehicleRead := &tests.Vehicle{Meta: &tests.MotorMeta{}}
-	if err := DB.Debug().First(vehicleRead, "id = ?", vehicleWrite.ID).Error; err != nil {
-		t.Fatalf("fail to find vehicle %v", err)
-	} else {
-		AssertEqual(t, vehicleWrite.Meta.(*tests.MotorMeta).Power, vehicleRead.Meta.(*tests.MotorMeta).Power)
-	}
-}
diff --git a/tests/tests_test.go b/tests/tests_test.go
index daf52980..7d6561b8 100644
--- a/tests/tests_test.go
+++ b/tests/tests_test.go
@@ -108,7 +108,7 @@ func OpenTestConnection() (db *gorm.DB, err error) {
 
 func RunMigrations() {
 	var err error
-	allModels := []interface{}{&User{}, &Account{}, &Pet{}, &Company{}, &Toy{}, &Language{}, &Coupon{}, &CouponProduct{}, &Order{}, &Parent{}, &Child{}, &Vehicle{Meta: &MotorMeta{}}}
+	allModels := []interface{}{&User{}, &Account{}, &Pet{}, &Company{}, &Toy{}, &Language{}, &Coupon{}, &CouponProduct{}, &Order{}, &Parent{}, &Child{}}
 	rand.Seed(time.Now().UnixNano())
 	rand.Shuffle(len(allModels), func(i, j int) { allModels[i], allModels[j] = allModels[j], allModels[i] })
 
diff --git a/utils/tests/models.go b/utils/tests/models.go
index 94c190b2..ec1651a3 100644
--- a/utils/tests/models.go
+++ b/utils/tests/models.go
@@ -2,10 +2,6 @@ package tests
 
 import (
 	"database/sql"
-	"database/sql/driver"
-	"encoding/json"
-	"errors"
-	"fmt"
 	"time"
 
 	"gorm.io/gorm"
@@ -98,62 +94,3 @@ type Child struct {
 	ParentID *uint
 	Parent   *Parent
 }
-
-type Meta interface {
-	Scan(src interface{}) error
-	Value() (driver.Value, error)
-	GormDataType() string
-}
-type MotorMeta struct {
-	Power string
-}
-
-func (meta *MotorMeta) Scan(src interface{}) error {
-	bytes, ok := src.([]byte)
-	if !ok {
-		return errors.New(fmt.Sprint("Failed to unmarshal JSON value:", src))
-	}
-	result := MotorMeta{}
-	err := json.Unmarshal(bytes, &result)
-	*meta = result
-	return err
-}
-func (meta *MotorMeta) Value() (driver.Value, error) {
-	if meta == nil {
-		return nil, nil
-	}
-	res, err := json.Marshal(meta)
-	return string(res), err
-}
-func (MotorMeta) GormDataType() string {
-	return "json"
-}
-
-type ManualMeta struct {
-}
-
-func (meta *ManualMeta) Scan(src interface{}) error {
-	bytes, ok := src.([]byte)
-	if !ok {
-		return errors.New(fmt.Sprint("Failed to unmarshal JSON value:", src))
-	}
-	result := ManualMeta{}
-	err := json.Unmarshal(bytes, &result)
-	*meta = result
-	return err
-}
-func (meta *ManualMeta) Value() (driver.Value, error) {
-	if meta == nil {
-		return nil, nil
-	}
-	res, err := json.Marshal(meta)
-	return string(res), err
-}
-func (ManualMeta) GormDataType() string {
-	return "json"
-}
-
-type Vehicle struct {
-	gorm.Model
-	Meta Meta
-}