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

    return user


@app.get("/pets/{pet_id}", response_model=PetOut)
async def read_pet(pet_id: int):
    user = UserDB(
        email="******@****.***",
        hashed_password="secrethashed",
    )
    pet = PetDB(name="Nibbler", owner=user)
    return pet


@app.get("/pets/", response_model=List[PetOut])
async def read_pets():
    user = UserDB(
        email="******@****.***",

		pet.Toy.Name += "new"
		if err := DB.Save(&pet).Error; err != nil {
			t.Fatalf("errors happened when update: %v", err)
		}

		var pet3 Pet
		DB.Preload("Toy").Find(&pet3, "id = ?", pet.ID)
		CheckPet(t, pet2, pet3)

		if err := DB.Session(&gorm.Session{FullSaveAssociations: true}).Save(&pet).Error; err != nil {
			t.Fatalf("errors happened when update: %v", err)
		}

		var pet4 Pet
		DB.Preload("Toy").Find(&pet4, "id = ?", pet.ID)

    return user


@app.get("/pets/{pet_id}", response_model=PetOut)
async def read_pet(pet_id: int):
    user = UserDB(
        email="******@****.***",
        hashed_password="secrethashed",
    )
    pet = PetDB(name="Nibbler", owner=user)
    return pet


@app.get("/pets/", response_model=List[PetOut])
async def read_pets():
    user = UserDB(
        email="******@****.***",

	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.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 {

		}}

		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])
		}
	})

	}

	DB.Where(&User{Name: "find or create embedded struct"}).Assign(User{Age: 44, Account: Account{Number: "1231231231"}, Pets: []*Pet{{Name: "first_or_create_pet1"}, {Name: "first_or_create_pet2"}}}).FirstOrCreate(&user8)
	if err := DB.Where("name = ?", "first_or_create_pet1").First(&Pet{}).Error; err != nil {
		t.Errorf("has many association should be saved")
	}

			}
		}
	})

	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
		})

	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})