facho: Amount nueva clase para gestion moneda.

facho/fe/form_xml(DIANInvoiceXML): se extrae de form.py
para resolver ciclo en dependencias.
facho/fe/form.py(Amount): clase para gestion de moneda.
test/: se actualizan para hacer uso de Amount.

FossilOrigin-Name: 714687a7a825715d272392d361de5e42d7c25d6078ec68a81df653f8843c37a3

tests/test_amount.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# This file is part of facho.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+"""Tests for `facho` package."""
+
+import pytest
+
+import facho.fe.form as form
+
+
+def test_amount_equals():
+    price1 = form.Amount(110.0)
+    price2 = form.Amount(100 + 10.0)
+    assert price1 == price2
+    assert price1 == form.Amount(100) + form.Amount(10)
+    assert price1 == form.Amount(10) * form.Amount(10) + form.Amount(10)