pets2 := []Pet{{Name: "pet-has-many-append-1-1"}, {Name: "pet-has-many-append-1-1"}}

	if err := DB.Model(&user2).Association("Pets").Append(&pets2); err != nil {
		t.Fatalf("Error happened when append pet, got %v", err)
	}

	for _, pet := range pets2 {
		pet := pet
		if pet.ID == 0 {
			t.Fatalf("Pet's ID should be created")
		}

		user.Pets = append(user.Pets, &pet)
	}

			}
		}
	})

	t.Run("Pets", func(t *testing.T) {
		if len(user.Pets) != len(expect.Pets) {
			t.Fatalf("pets should equal, expect: %v, got %v", len(expect.Pets), len(user.Pets))
		}

		sort.Slice(user.Pets, func(i, j int) bool {
			return user.Pets[i].ID > user.Pets[j].ID
		})

		sort.Slice(expect.Pets, func(i, j int) bool {
			return expect.Pets[i].ID > expect.Pets[j].ID
		})

		}}

		if err := DB.Create(&pets).Error; err != nil {
			t.Fatalf("errors happened when create: %v", err)
		}

		var petIDs []uint
		for _, pet := range pets {
			petIDs = append(petIDs, pet.ID)
			CheckPet(t, pet, pet)
		}

		var pets2 []Pet
		DB.Preload("Toy").Find(&pets2, "id IN ?", petIDs)
		for idx, pet := range pets2 {
			CheckPet(t, pet, pets[idx])
		}
	})

		t.Fatalf("errors happened when create: %v", err)
	}

	user.Pets = []*Pet{{Name: "pet1"}, {Name: "pet2"}}
	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user2 User
	DB.Preload("Pets").Find(&user2, "id = ?", user.ID)
	CheckUser(t, user2, user)

	for _, pet := range user.Pets {
		pet.Name += "new"
	}

	if err := DB.Save(&user).Error; err != nil {

func TestPolymorphicHasOneAssociation(t *testing.T) {
	pet := Pet{Name: "hasone", Toy: Toy{Name: "toy-has-one"}}

	if err := DB.Create(&pet).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	CheckPet(t, pet, pet)

	// Find
	var pet2 Pet
	DB.Find(&pet2, "id = ?", pet.ID)
	DB.Model(&pet2).Association("Toy").Find(&pet2.Toy)
	CheckPet(t, pet2, pet)

	// Count

	DB.Joins("inner join pets on pets.user_id = users.id AND pets.name = @Name", user.Pets[0]).Where("users.name = ?", user.Name).First(&users6)
	if len(users6) != 1 {
		t.Errorf("should find one users using left join with conditions, but got %v", len(users6))
	}

	dryDB := DB.Session(&gorm.Session{DryRun: true})

	} else {
		sort.Slice(users2[2].Pets, func(i, j int) bool {
			return users2[2].Pets[i].ID < users2[2].Pets[j].ID
		})

		for _, pet := range users2[2].Pets[0:2] {
			if pet.Toy.Name != "" {
				t.Errorf("No toy should for user %v's pet %v but got %v", 3, pet.Name, pet.Toy.Name)
			}
		}

		CheckPet(t, *users2[2].Pets[2], *users[2].Pets[2])
	}
}

func TestPreloadEmptyData(t *testing.T) {

			}
		} else if len(result.Pets) != 5 {
			t.Fatalf("Preload user %v pets should be 5, but got %+v", result.Name, result.Pets)
		}
		for i := 1; i < len(result.Pets); i++ {
			if result.Pets[i-1].Name < result.Pets[i].Name {
				t.Fatalf("Preload user %v pets not ordered correctly, last %v, cur %v", result.Name, result.Pets[i-1], result.Pets[i])
			}
		}
	}

	result.Pets = append(user.Pets, result.Pets...)
	result.Team = append(user.Team, result.Team...)
	result.Friends = append(user.Friends, result.Friends...)

	sort.Slice(result.Pets, func(i, j int) bool {
		return result.Pets[i].ID < result.Pets[j].ID
	})

		*GetUser("delete_slice_with_associations1", Config{Account: true, Pets: 4, Toys: 1, Company: true, Manager: true, Team: 1, Languages: 1, Friends: 4}),
		*GetUser("delete_slice_with_associations2", Config{Account: true, Pets: 3, Toys: 2, Company: true, Manager: true, Team: 2, Languages: 2, Friends: 3}),
		*GetUser("delete_slice_with_associations3", Config{Account: true, Pets: 2, Toys: 3, Company: true, Manager: true, Team: 3, Languages: 3, Friends: 2}),