implement reset nkode

core/test_helper.go

@@ -10,8 +10,11 @@ func SelectKeyByAttrIdx(interfaceUser []int, passcodeIdxs []int, keypadSize Keyp
 	selectedKeys := make([]int, len(passcodeIdxs))
 	for idx := range passcodeIdxs {
 		attrIdx := util.IndexOf[int](interfaceUser, passcodeIdxs[idx])
+		if attrIdx == -1 {
+			return nil, errors.New(fmt.Sprintf("index: %d out of range 0-%d", passcodeIdxs[idx], keypadSize.TotalAttrs()-1))
+		}
 		keyNumb := attrIdx / keypadSize.AttrsPerKey
-		if keyNumb < 0 || keyNumb >= keypadSize.NumbOfKeys {
+		if keyNumb >= keypadSize.NumbOfKeys {
 			return nil, errors.New(fmt.Sprintf("index key number: %d out of range 0-%d", keyNumb, keypadSize.NumbOfKeys-1))
 		}
 		selectedKeys[idx] = keyNumb