}
	})

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

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

		sort.Slice(expect.Friends, func(i, j int) bool {

	// Append
	friend := *GetUser("friend", Config{})

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

	user.Friends = append(user.Friends, &friend)
	CheckUser(t, user2, user)

	AssertAssociationCount(t, user, "Friends", 3, "AfterAppend")

      targetCompatibility = projectJavaVersion.toString()
    }
  }
}

subprojects {
  // From https://www.liutikas.net/2025/01/12/Kotlin-Library-Friends.html

    // Create configurations we can use to track friend libraries
  configurations {
    val friendsApi = register("friendsApi") {
      isCanBeResolved = true
      isCanBeConsumed = false
      isTransitive = true
    }

		*GetUser("bulk_5", Config{Account: false, Pets: 0, Toys: 3, Company: true, Manager: false, Team: 1, Languages: 3, Friends: 1}),
		*GetUser("bulk_6", Config{Account: true, Pets: 4, Toys: 3, Company: false, Manager: true, Team: 1, Languages: 3, Friends: 0}),
		*GetUser("bulk_7", Config{Account: true, Pets: 1, Toys: 3, Company: true, Manager: true, Team: 4, Languages: 3, Friends: 1}),

    id: int
    name: str = "John Doe"
    signup_ts: Union[datetime, None] = None
    friends: list[int] = []


external_data = {
    "id": "123",
    "signup_ts": "2017-06-01 12:22",
    "friends": [1, "2", b"3"],
}
user = User(**external_data)
print(user)
# > User id=123 name='John Doe' signup_ts=datetime.datetime(2017, 6, 1, 12, 22) friends=[1, 2, 3]
print(user.id)

    id: int
    name: str = "John Doe"
    signup_ts: datetime | None = None
    friends: list[int] = []


external_data = {
    "id": "123",
    "signup_ts": "2017-06-01 12:22",
    "friends": [1, "2", b"3"],
}
user = User(**external_data)
print(user)
# > User id=123 name='John Doe' signup_ts=datetime.datetime(2017, 6, 1, 12, 22) friends=[1, 2, 3]
print(user.id)

	ctx := context.Background()
	db := gorm.G[User](DB)

	u := *GetUser("GenericsPreloads_1", Config{Company: true, Pets: 3, Friends: 7})
	u2 := *GetUser("GenericsPreloads_2", Config{Company: true, Pets: 5, Friends: 5})
	u3 := *GetUser("GenericsPreloads_3", Config{Company: true, Pets: 7, Friends: 3})
	names := []string{u.Name, u2.Name, u3.Name}

	db.CreateInBatches(ctx, &[]User{u3, u, u2}, 10)

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

// He works in a Company (belongs to), he has a Manager (belongs to - single-table), and also managed a Team (has many - single-table)
// He speaks many languages (many to many) and has many friends (many to many - single-table)
// His pet also has one Toy (has one - polymorphic)
// NamedPet is a reference to a named `Pet` (has one)
type User struct {
	gorm.Model
	Name      string
	Age       uint

	DB.Create(&user)

	DB.Preload("Team").Preload("Languages").Preload("Friends").First(&user, "name = ?", user.Name)

	if r, err := json.Marshal(&user); err != nil {
		t.Errorf("failed to marshal users, got error %v", err)
	} else if !regexp.MustCompile(`"Team":\[\],"Languages":\[\],"Friends":\[\]`).MatchString(string(r)) {
		t.Errorf("json marshal is not empty slice, got %v", string(r))
	}