// 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")