diff --git a/migrator/migrator.go b/migrator/migrator.go
index f581f714..cab266a3 100644
--- a/migrator/migrator.go
+++ b/migrator/migrator.go
@@ -542,7 +542,11 @@ func (m Migrator) ReorderModels(values []interface{}, autoAdd bool) (results []i
 	}
 
 	for _, value := range values {
-		parseDependence(value, true)
+		if v, ok := value.(string); ok {
+			results = append(results, v)
+		} else {
+			parseDependence(value, true)
+		}
 	}
 
 	for _, name := range modelNames {
diff --git a/tests/create.go b/tests/create.go
index ec57b8ee..09464674 100644
--- a/tests/create.go
+++ b/tests/create.go
@@ -2,6 +2,7 @@ package tests
 
 import (
 	"strconv"
+	"testing"
 	"time"
 )
 
@@ -16,7 +17,7 @@ type Config struct {
 	Friends   int
 }
 
-func GetUser(name string, config Config) User {
+func GetUser(name string, config Config) *User {
 	var (
 		birthday = time.Now()
 		user     = User{
@@ -43,23 +44,136 @@ func GetUser(name string, config Config) User {
 	}
 
 	if config.Manager {
-		manager := GetUser(name+"_manager", Config{})
-		user.Manager = &manager
+		user.Manager = GetUser(name+"_manager", Config{})
 	}
 
 	for i := 0; i < config.Team; i++ {
-		user.Team = append(user.Team, GetUser(name+"_team_"+strconv.Itoa(i+1), Config{}))
+		user.Team = append(user.Team, *GetUser(name+"_team_"+strconv.Itoa(i+1), Config{}))
 	}
 
 	for i := 0; i < config.Languages; i++ {
-		name := "Locale_" + strconv.Itoa(i+0)
-		user.Languages = append(user.Languages, Language{Code: name, Name: name})
+		name := name + "_locale_" + strconv.Itoa(i+0)
+		language := Language{Code: name, Name: name}
+		DB.Create(&language)
+		user.Languages = append(user.Languages, language)
 	}
 
 	for i := 0; i < config.Friends; i++ {
-		f := GetUser(name+"_friend_"+strconv.Itoa(i+1), Config{})
-		user.Friends = append(user.Friends, &f)
+		user.Friends = append(user.Friends, GetUser(name+"_friend_"+strconv.Itoa(i+1), Config{}))
 	}
 
-	return user
+	return &user
+}
+
+func CheckPet(t *testing.T, pet Pet, expect Pet) {
+	AssertObjEqual(t, pet, expect, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "UserID", "Name")
+
+	AssertObjEqual(t, pet.Toy, expect.Toy, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "Name", "OwnerID", "OwnerType")
+
+	if expect.Toy.Name != "" && expect.Toy.OwnerType != "pets" {
+		t.Errorf("toys's OwnerType, expect: %v, got %v", "pets", expect.Toy.OwnerType)
+	}
+}
+
+func CheckUser(t *testing.T, user User, expect User) {
+	if user.ID != 0 {
+		var newUser User
+		if err := DB.Where("id = ?", user.ID).First(&newUser).Error; err != nil {
+			t.Fatalf("errors happened when query: %v", err)
+		} else {
+			AssertObjEqual(t, newUser, user, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "Name", "Age", "Birthday", "CompanyID", "ManagerID", "Active")
+		}
+	}
+
+	AssertObjEqual(t, user, expect, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "Name", "Age", "Birthday", "CompanyID", "ManagerID", "Active")
+
+	t.Run("Account", func(t *testing.T) {
+		AssertObjEqual(t, user.Account, expect.Account, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "UserID", "Number")
+
+		if user.Account.Number != "" {
+			if !user.Account.UserID.Valid {
+				t.Errorf("Account's foreign key should be saved")
+			} else {
+				var account Account
+				DB.First(&account, "user_id = ?", user.ID)
+				AssertObjEqual(t, account, user.Account, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "UserID", "Number")
+			}
+		}
+	})
+
+	t.Run("Pets", func(t *testing.T) {
+		if len(user.Pets) != len(expect.Pets) {
+			t.Errorf("pets should equal, expect: %v, got %v", len(expect.Pets), len(user.Pets))
+		}
+
+		for idx, pet := range user.Pets {
+			if pet == nil || expect.Pets[idx] == nil {
+				t.Errorf("pets#%v should equal, expect: %v, got %v", idx, expect.Pets[idx], pet)
+			} else {
+				CheckPet(t, *pet, *expect.Pets[idx])
+			}
+		}
+	})
+
+	t.Run("Toys", func(t *testing.T) {
+		if len(user.Toys) != len(expect.Toys) {
+			t.Errorf("toys should equal, expect: %v, got %v", len(expect.Toys), len(user.Toys))
+		}
+
+		for idx, toy := range user.Toys {
+			if toy.OwnerType != "users" {
+				t.Errorf("toys's OwnerType, expect: %v, got %v", "users", toy.OwnerType)
+			}
+
+			AssertObjEqual(t, toy, expect.Toys[idx], "ID", "CreatedAt", "UpdatedAt", "Name", "OwnerID", "OwnerType")
+		}
+	})
+
+	t.Run("Company", func(t *testing.T) {
+		AssertObjEqual(t, user.Company, expect.Company, "ID", "Name")
+	})
+
+	t.Run("Manager", func(t *testing.T) {
+		if user.Manager != nil {
+			if user.ManagerID == nil {
+				t.Errorf("Manager's foreign key should be saved")
+			} else {
+				var manager User
+				DB.First(&manager, "id = ?", *user.ManagerID)
+				AssertObjEqual(t, manager, user.Manager, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "Name", "Age", "Birthday", "CompanyID", "ManagerID", "Active")
+			}
+		} else if user.ManagerID != nil {
+			t.Errorf("Manager should not be created for zero value, got: %+v", user.ManagerID)
+		}
+	})
+
+	t.Run("Team", func(t *testing.T) {
+		if len(user.Team) != len(expect.Team) {
+			t.Errorf("Team should equal, expect: %v, got %v", len(expect.Team), len(user.Team))
+		}
+
+		for idx, team := range user.Team {
+			AssertObjEqual(t, team, expect.Team[idx], "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "Name", "Age", "Birthday", "CompanyID", "ManagerID", "Active")
+		}
+	})
+
+	t.Run("Languages", func(t *testing.T) {
+		if len(user.Languages) != len(expect.Languages) {
+			t.Errorf("Languages should equal, expect: %v, got %v", len(expect.Languages), len(user.Languages))
+		}
+
+		for idx, language := range user.Languages {
+			AssertObjEqual(t, language, expect.Languages[idx], "Code", "Name")
+		}
+	})
+
+	t.Run("Friends", func(t *testing.T) {
+		if len(user.Friends) != len(expect.Friends) {
+			t.Errorf("Friends should equal, expect: %v, got %v", len(expect.Friends), len(user.Friends))
+		}
+
+		for idx, friend := range user.Friends {
+			AssertObjEqual(t, friend, expect.Friends[idx], "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "Name", "Age", "Birthday", "CompanyID", "ManagerID", "Active")
+		}
+	})
 }
diff --git a/tests/create_test.go b/tests/create_test.go
index 471cecf6..9241e0a6 100644
--- a/tests/create_test.go
+++ b/tests/create_test.go
@@ -7,7 +7,7 @@ import (
 )
 
 func TestCreate(t *testing.T) {
-	var user = GetUser("create", Config{})
+	var user = *GetUser("create", Config{})
 
 	if err := DB.Create(&user).Error; err != nil {
 		t.Fatalf("errors happened when create: %v", err)
@@ -27,165 +27,104 @@ func TestCreate(t *testing.T) {
 
 	var newUser User
 	if err := DB.Where("id = ?", user.ID).First(&newUser).Error; err != nil {
-		t.Errorf("errors happened when query: %v", err)
+		t.Fatalf("errors happened when query: %v", err)
 	} else {
-		AssertObjEqual(t, newUser, user, "Name", "Age", "Birthday")
+		CheckUser(t, newUser, user)
 	}
 }
 
-func TestCreateWithBelongsToAssociations(t *testing.T) {
-	check := func(t *testing.T, user User, old User) {
-		if old.Company.Name != "" {
-			if user.CompanyID == nil {
-				t.Errorf("Company's foreign key should be saved")
-			} else {
-				var company Company
-				DB.First(&company, "id = ?", *user.CompanyID)
-				if company.Name != old.Company.Name {
-					t.Errorf("Company's name should be same")
-				} else if user.Company.Name != old.Company.Name {
-					t.Errorf("Company's name should be same")
-				}
-			}
-		} else if user.CompanyID != nil {
-			t.Errorf("Company should not be created for zero value, got: %+v", user.CompanyID)
-		}
+func TestCreateWithAssociations(t *testing.T) {
+	var user = *GetUser("create_with_belongs_to", Config{
+		Account:   true,
+		Pets:      2,
+		Toys:      3,
+		Company:   true,
+		Manager:   true,
+		Team:      4,
+		Languages: 3,
+		Friends:   1,
+	})
 
-		if old.Manager != nil {
-			if user.ManagerID == nil {
-				t.Errorf("Manager's foreign key should be saved")
-			} else {
-				var manager User
-				DB.First(&manager, "id = ?", *user.ManagerID)
-				if manager.Name != user.Manager.Name {
-					t.Errorf("Manager's name should be same")
-				} else if user.Manager.Name != old.Manager.Name {
-					t.Errorf("Manager's name should be same")
-				}
-			}
-		} else if user.ManagerID != nil {
-			t.Errorf("Manager should not be created for zero value, got: %+v", user.ManagerID)
-		}
+	if err := DB.Create(&user).Error; err != nil {
+		t.Fatalf("errors happened when create: %v", err)
 	}
 
-	t.Run("Struct", func(t *testing.T) {
-		var user = User{
-			Name:     "create",
-			Age:      18,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association"},
-			Manager:  &User{Name: "manager-belongs-to-association"},
-		}
+	CheckUser(t, user, user)
 
-		if err := DB.Create(&user).Error; err != nil {
-			t.Fatalf("errors happened when create: %v", err)
-		}
-
-		check(t, user, user)
-
-		var user2 User
-		DB.Preload("Company").Preload("Manager").Find(&user2, "id = ?", user.ID)
-		check(t, user2, user)
-	})
-
-	t.Run("BulkInsert", func(t *testing.T) {
-		var users = []User{{
-			Name:     "create-1",
-			Age:      18,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-1"},
-			Manager:  &User{Name: "manager-belongs-to-association-1"},
-		}, {
-			Name:     "create-2",
-			Age:      28,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-2"},
-		}, {
-			Name:     "create-3",
-			Age:      38,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-3"},
-			Manager:  &User{Name: "manager-belongs-to-association-3"},
-		}}
-
-		if err := DB.Create(&users).Error; err != nil {
-			t.Fatalf("errors happened when create: %v", err)
-		}
-
-		var userIDs []uint
-		for _, user := range users {
-			userIDs = append(userIDs, user.ID)
-			check(t, user, user)
-		}
-
-		t.Run("Preload", func(t *testing.T) {
-			var users2 []User
-			DB.Preload("Company").Preload("Manager").Find(&users2, "id IN ?", userIDs)
-			for idx, user := range users2 {
-				check(t, user, users[idx])
-			}
-		})
-	})
-
-	t.Run("BulkInsertPtrData", func(t *testing.T) {
-		var users = []*User{{
-			Name:     "create-1",
-			Age:      18,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-1"},
-			Manager:  &User{Name: "manager-belongs-to-association-1"},
-		}, {
-			Name:     "create-2",
-			Age:      28,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-2"},
-		}, {
-			Name:     "create-3",
-			Age:      38,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-3"},
-			Manager:  &User{Name: "manager-belongs-to-association-3"},
-		}}
-
-		if err := DB.Create(&users).Error; err != nil {
-			t.Fatalf("errors happened when create: %v", err)
-		}
-
-		for _, user := range users {
-			check(t, *user, *user)
-		}
-	})
-
-	t.Run("BulkInsertWithoutPtr", func(t *testing.T) {
-		var users = []*User{{
-			Name:     "create-1",
-			Age:      18,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-1"},
-			Manager:  &User{Name: "manager-belongs-to-association-1"},
-		}, {
-			Name:     "create-2",
-			Age:      28,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-2"},
-		}, {
-			Name:     "create-3",
-			Age:      38,
-			Birthday: Now(),
-			Company:  Company{Name: "company-belongs-to-association-3"},
-			Manager:  &User{Name: "manager-belongs-to-association-3"},
-		}}
-
-		if err := DB.Create(users).Error; err != nil {
-			t.Fatalf("errors happened when create: %v", err)
-		}
-
-		for _, user := range users {
-			check(t, *user, *user)
-		}
-	})
+	var user2 User
+	DB.Preload("Account").Preload("Pets").Preload("Toys").Preload("Company").Preload("Manager").Preload("Team").Preload("Languages").Find(&user2, "id = ?", user.ID)
+	CheckUser(t, user2, user)
 }
 
+// func TestBulkCreateWithBelongsTo(t *testing.T) {
+// 	users := []User{
+// 		*GetUser("create_with_belongs_to_1", Config{Company: true, Manager: true}),
+// 		*GetUser("create_with_belongs_to_2", Config{Company: true, Manager: false}),
+// 		*GetUser("create_with_belongs_to_3", Config{Company: false, Manager: true}),
+// 		*GetUser("create_with_belongs_to_4", Config{Company: true, Manager: true}),
+// 	}
+
+// 	if err := DB.Create(&users).Error; err != nil {
+// 		t.Fatalf("errors happened when create: %v", err)
+// 	}
+
+// 	var userIDs []uint
+// 	for _, user := range users {
+// 		userIDs = append(userIDs, user.ID)
+// 		CheckUser(t, user, user)
+// 	}
+
+// 	var users2 []User
+// 	DB.Preload("Company").Preload("Manager").Find(&users2, "id IN ?", userIDs)
+// 	for idx, user := range users2 {
+// 		CheckUser(t, user, users[idx])
+// 	}
+// }
+
+// func TestBulkCreatePtrDataWithBelongsTo(t *testing.T) {
+// 	users := []*User{
+// 		GetUser("create_with_belongs_to_1", Config{Company: true, Manager: true}),
+// 		GetUser("create_with_belongs_to_2", Config{Company: true, Manager: false}),
+// 		GetUser("create_with_belongs_to_3", Config{Company: false, Manager: true}),
+// 		GetUser("create_with_belongs_to_4", Config{Company: true, Manager: true}),
+// 	}
+
+// 	if err := DB.Create(&users).Error; err != nil {
+// 		t.Fatalf("errors happened when create: %v", err)
+// 	}
+
+// 	var userIDs []uint
+// 	for _, user := range users {
+// 		userIDs = append(userIDs, user.ID)
+// 		CheckUser(t, *user, *user)
+// 	}
+
+// 	var users2 []User
+// 	DB.Preload("Company").Preload("Manager").Find(&users2, "id IN ?", userIDs)
+// 	for idx, user := range users2 {
+// 		CheckUser(t, user, *users[idx])
+// 	}
+// }
+
+// func TestBulkCreateWithoutPtrWithBelongsTo(t *testing.T) {
+// 	users := []*User{
+// 		GetUser("create_with_belongs_to_1", Config{Company: true, Manager: true}),
+// 		GetUser("create_with_belongs_to_2", Config{Company: true, Manager: false}),
+// 		GetUser("create_with_belongs_to_3", Config{Company: false, Manager: true}),
+// 		GetUser("create_with_belongs_to_4", Config{Company: true, Manager: true}),
+// 	}
+
+// 	if err := DB.Create(&users).Error; err != nil {
+// 		t.Fatalf("errors happened when create: %v", err)
+// 	}
+
+// 	var userIDs []uint
+// 	for _, user := range users {
+// 		userIDs = append(userIDs, user.ID)
+// 		CheckUser(t, *user, *user)
+// 	}
+// }
+
 // func TestCreateHasOneAssociations(t *testing.T, db *gorm.DB) {
 // 	check := func(t *testing.T, user User, old User) {
 // 		if user.Account.ID == 0 {
diff --git a/tests/main_test.go b/tests/main_test.go
index 7324ed9e..3e329454 100644
--- a/tests/main_test.go
+++ b/tests/main_test.go
@@ -36,6 +36,8 @@ func RunMigrations() {
 	rand.Seed(time.Now().UnixNano())
 	rand.Shuffle(len(allModels), func(i, j int) { allModels[i], allModels[j] = allModels[j], allModels[i] })
 
+	DB.Migrator().DropTable("user_friends", "user_speak")
+
 	if err = DB.Migrator().DropTable(allModels...); err != nil {
 		log.Printf("Failed to drop table, got error %v\n", err)
 		os.Exit(1)
diff --git a/tests/utils.go b/tests/utils.go
index 9d61c422..cb4e4fcc 100644
--- a/tests/utils.go
+++ b/tests/utils.go
@@ -29,6 +29,15 @@ func AssertEqual(t *testing.T, got, expect interface{}) {
 			}
 		}
 
+		if got == expect {
+			return
+		}
+
+		if reflect.Indirect(reflect.ValueOf(got)).IsValid() != reflect.Indirect(reflect.ValueOf(expect)).IsValid() {
+			t.Errorf("expect: %+v, got %+v", expect, got)
+			return
+		}
+
 		if got != nil {
 			got = reflect.Indirect(reflect.ValueOf(got)).Interface()
 		}