facho/fe/form.py(Invoice): adiciona prepaid_payment.

FossilOrigin-Name: feceabdbddaa65c5c767ae46cc79f7d7c158e9ffa01c3f0d507a02caef8ac33c

tests/test_form.py

@@ -65,3 +65,29 @@ def test_FAU10():
     assert inv.invoice_legal_monetary_total.tax_exclusive_amount == 100.0
     assert inv.invoice_legal_monetary_total.tax_inclusive_amount == 119.0
     assert inv.invoice_legal_monetary_total.charge_total_amount == 19.0
+
+
+def test_FAU14():
+    inv = form.Invoice()
+    inv.add_invoice_line(form.InvoiceLine(
+        quantity = 1,
+        description = 'producto facho',
+        item = form.StandardItem('test', 9999),
+        price = form.Price(
+            amount = 100.0,
+            type_code = '01',
+            type = 'x'
+        ),
+        tax = form.TaxTotal(
+            subtotals = [
+                form.TaxSubTotal(
+                    percent = 19.0,
+                )
+            ]
+        )
+    ))
+    inv.add_allownace_charge(form.AllowanceCharge(amount=19.0))
+    inv.add_prepaid_payment(form.PrePaidPayment(paid_amount = 50.0))
+    inv.calculate()
+
+    assert inv.invoice_legal_monetary_total.payable_amount == 119.0 + 19.0 - 50.0