int pos = 0;
        int pos2 = 0;
        while (true) {
            pos = text.indexOf(fromText, pos2);
            if (pos == 0) {
                buf.append(toText);
                pos2 = fromText.length();
            } else if (pos > 0) {
                buf.append(text.substring(pos2, pos));
                buf.append(toText);
                pos2 = pos + fromText.length();
            } else {

		}

		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.Run("SliceOfPtr", func(t *testing.T) {
		pets := []*Pet{{
			Name: "PolymorphicHasOne-Slice-1",