facho/fe/form.py a modulo.

* facho/fe/form/query.py: utilidades.

FossilOrigin-Name: a1486421fcfcf6bda1e3b4901f3fc3fe86b7156852571aad74274d5b7ce3778a

tests/test_query.py

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+#!/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.
+
+import pytest
+
+import facho.fe.form as form
+from facho import fe
+from facho.fe.form_xml import DIANInvoiceXML, DIANCreditNoteXML, DIANDebitNoteXML
+
+from fixtures import *
+
+from facho.fe.form import query
+
+def test_query_billing_reference(simple_invoice):
+    xml = DIANInvoiceXML(simple_invoice)
+    cufe_extension = fe.DianXMLExtensionCUFE(simple_invoice)
+    xml.add_extension(cufe_extension)
+    out = xml.tostring()
+    
+    reference = query.billing_reference(out, form.BillingReference)
+    assert isinstance(reference, form.BillingReference)
+    assert reference.ident != ''
+    assert reference.uuid != ''
+    assert reference.date != ''