get amount on line as net-value (even if invoice is gross-mode)

tests/test_edocument.py

@@ -7,7 +7,8 @@ from lxml import etree
 import os
 from decimal import Decimal
 from datetime import date
-from trytond.tests.test_tryton import ModuleTestCase, with_transaction
+from trytond.tests.test_tryton import (
+    ModuleTestCase, with_transaction, activate_module)
 from trytond.pool import Pool
 from trytond.modules.company.tests import create_company, set_company
 from trytond.modules.account.tests import create_chart, get_fiscalyear
@@ -42,6 +43,14 @@ class EdocTestCase(ModuleTestCase):
     'Test e-rechnung module'
     module = 'edocument_xrechnung'
 
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        activate_module([
+            'edocument_uncefact', 'party', 'bank',
+            'account_invoice', 'sale_point_invoice',
+            'product_grossprice'], 'en')
+
     def prep_fiscalyear(self, company1):
         """ prepare fiscal year, sequences...
         """
@@ -84,7 +93,7 @@ class EdocTestCase(ModuleTestCase):
                 'number': 'DE02300209000106531065'}])]}])
         return company
 
-    def prep_invoice(self, credit_note=False):
+    def prep_invoice(self, credit_note=False, modegross='net'):
         """ add invoice
         """
         pool = Pool()
@@ -130,6 +139,7 @@ class EdocTestCase(ModuleTestCase):
 
         to_create_invoice = [{
             'type': 'out',
+            'modegross': modegross,
             'description': 'description of invoice',
             'comment': 'note line 1\nnote line 2',
             'invoice_date': date(2024, 7, 1),
@@ -149,6 +159,11 @@ class EdocTestCase(ModuleTestCase):
                 'currency': currency1.id,
                 }])],
             }]
+
+        if modegross == 'gross':
+            to_create_invoice[0]['lines'][0][1][0]['unit_gross_price'] = (
+                Decimal('50.0') * Decimal('1.2'))
+
         inv_lst, = Invoice.create(to_create_invoice)
         inv_lst.on_change_lines()
         inv_lst.save()
@@ -233,6 +248,34 @@ class EdocTestCase(ModuleTestCase):
                 {'identifiers': [('delete', [party.identifiers[0].id])]}]
             )
 
+    @with_transaction()
+    def test_xrechn_export_facturx_gross(self):
+        """ run export - factur-x, modegross='gross'
+        """
+        pool = Pool()
+        Template = pool.get('edocument.facturxext.invoice')
+
+        company = self.prep_company()
+        with set_company(company):
+            create_chart(company=company, tax=True)
+            self.prep_fiscalyear(company)
+            invoice = self.prep_invoice(modegross='gross')
+
+            template = Template(invoice)
+
+            schema_file = os.path.join(
+                os.path.dirname(__file__),
+                'Factur-X_1.07.2_EXTENDED',
+                'Factur-X_1.07.2_EXTENDED.xsd')
+
+            invoice_string = template.render('Factur-X-1.07.2-extended')
+            with open('gross_invoice_string.xml', 'wb') as fhdl:
+                fhdl.write(invoice_string)
+
+            invoice_xml = etree.fromstring(invoice_string)
+            schema = etree.XMLSchema(etree.parse(schema_file))
+            schema.assertValid(invoice_xml)
+
     @with_transaction()
     def test_xrechn_export_facturx(self):
         """ run export - factur-x