diff --git a/l10n_it_fatturapa_out/tests/fatturapa_common.py b/l10n_it_fatturapa_out/tests/fatturapa_common.py
index f2ffcaa5b4ce..c9f6f4eb436a 100644
--- a/l10n_it_fatturapa_out/tests/fatturapa_common.py
+++ b/l10n_it_fatturapa_out/tests/fatturapa_common.py
@@ -233,28 +233,12 @@ def getFile(self, filename, module_name=None):
         return self.getFilePath(path)
 
     def _create_invoice(self):
-        return self.invoice_model.create(
-            {
-                "name": "Test Invoice",
-                "journal_id": self.sales_journal.id,
-                "partner_id": self.res_partner_fatturapa_0.id,
-                "move_type": "out_invoice",
-                "invoice_line_ids": [
-                    (
-                        0,
-                        0,
-                        {
-                            "account_id": self.a_sale.id,
-                            "product_id": self.product_product_10.id,
-                            "name": self.product_product_10.name,
-                            "quantity": 1,
-                            "price_unit": 1,
-                            "tax_ids": [(6, 0, {self.tax_22.id})],
-                        },
-                    ),
-                ],
-            }
+        invoice = self.init_invoice(
+            "out_invoice",
+            partner=self.res_partner_fatturapa_0,
+            products=self.product_product_10,
         )
+        return invoice
 
     def _create_e_invoice(self):
         invoice = self._create_invoice()
diff --git a/l10n_it_fatturapa_out/tests/test_fatturapa_xml_validation.py b/l10n_it_fatturapa_out/tests/test_fatturapa_xml_validation.py
index 2ee5b78cea73..ac64e1e76a64 100644
--- a/l10n_it_fatturapa_out/tests/test_fatturapa_xml_validation.py
+++ b/l10n_it_fatturapa_out/tests/test_fatturapa_xml_validation.py
@@ -947,3 +947,15 @@ def test_trasmittente_xml_export(self):
         self.set_e_invoice_file_id(attachment, "IT03297040366_00019.xml")
         xml_content = base64.decodebytes(attachment.datas)
         self.check_content(xml_content, "IT03297040366_00019.xml")
+
+    def test_validate_invoice(self):
+        """
+        Check that the invoice used for tests
+        is posted when validated.
+        """
+        invoice = self._create_invoice()
+        self.assertEqual(invoice.state, "draft")
+
+        invoice.action_post()
+
+        self.assertEqual(invoice.state, "posted")