[FIX] account_invoice_constraint_chronology - fix unit test

account_invoice_constraint_chronology/tests/test_account_invoice_constraint_chronology.py

@@ -2,7 +2,7 @@
 # Copyright 2021 CorporateHub (https://corporatehub.eu)
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
 
-from datetime import timedelta
+from datetime import date, timedelta
 
 from odoo import fields
 from odoo.exceptions import UserError
@@ -170,11 +170,19 @@ def test_modify_invoice_date_validated_past_invoice(self):
         # it should be able to validate, but if we change the date
         # higher than YYYYYMM15 or lower than YYYYYMM05
         # it should not be able to validate.
-        after_5_days = self.today + timedelta(days=5)
-        after_10_days = self.today + timedelta(days=10)
-        after_15_days = self.today + timedelta(days=15)
-        after_20_days = self.today + timedelta(days=20)
-        after_25_days = self.today + timedelta(days=25)
+
+        # in order to avoid a raise caused by the sequence mixin we must ensure
+        # that all dates are in the same year, hence we set the invoice_1 date
+        # in the middle of the year
+        mid_year_date = date(self.today.year, 7, 1)
+        self.invoice_1.date = mid_year_date
+        self.invoice_1.invoice_date = mid_year_date
+
+        after_5_days = mid_year_date + timedelta(days=5)
+        after_10_days = mid_year_date + timedelta(days=10)
+        after_15_days = mid_year_date + timedelta(days=15)
+        after_20_days = mid_year_date + timedelta(days=20)
+        after_25_days = mid_year_date + timedelta(days=25)
 
         self.invoice_1.action_post()