[FIX] account_invoice_inter_company : creating a credit note should generate a supplier refund in the other company

Fixes #736

Author: metaminux

Diff for: account_invoice_inter_company/models/account_move.py

@@ -46,9 +46,9 @@ def _set_intercompany_supplier_invoice_ref(self):
         if not supplier_invoice.ref:
             supplier_invoice.write({"ref": self.name})
 
-    def action_post(self):
+    def _post(self, soft=True):
         """Validated invoice generate cross invoice base on company rules"""
-        res = super().action_post()
+        res = super()._post(soft=soft)
         # Intercompany account entries or receipts aren't supported
         supported_types = {"out_invoice", "in_invoice", "out_refund", "in_refund"}
         for src_invoice in self.filtered(lambda x: x.move_type in supported_types):

Diff for: account_invoice_inter_company/tests/test_inter_company_invoice.py

@@ -542,6 +542,31 @@ def _confirm_invoice_with_product(self):
         self.assertEqual(len(invoices), 1)
         return invoices
 
+    def test_invoice_full_refund(self):
+        # Confirm the invoice for company A
+        self.invoice_company_a.with_user(self.user_company_a.id).action_post()
+        # Open the account move reversal wizard
+        # We use a form to pass the context properly to the depends_context move_ids field
+        context = {
+            "active_model": "account.move",
+            "active_ids": self.invoice_company_a.ids,
+        }
+        with Form(
+            self.env["account.move.reversal"]
+            .with_context(**context)
+            .with_user(self.user_company_a.id)
+        ) as wizard_form:
+            wizard_form.refund_method = "cancel"
+        wizard = wizard_form.save()
+        # Create the reversal move.
+        wizard.reverse_moves()
+        self.assertTrue(wizard.new_move_ids)
+        self.assertTrue(
+            self.env["account.move"]
+            .with_user(self.user_company_b)
+            .search([("auto_invoice_id", "=", wizard.new_move_ids.id)])
+        )
+
     def test_confirm_invoice_intercompany_disabled(self):
         # ensure the catalog is shared
         self.env.ref("product.product_comp_rule").write({"active": False})