feat: Add maximum due date validation

netsgiro/objects.py

@@ -30,7 +30,7 @@
     TransmissionStart,
 )
 from netsgiro.records import parse as records_parse
-from netsgiro.validators import str_of_length, validate_minimum_date
+from netsgiro.validators import str_of_length, validate_due_date
 
 if TYPE_CHECKING:
     from netsgiro.enums import AvtaleGiroRegistrationType
@@ -382,7 +382,7 @@ def add_payment_request(
 
         if validate_due_date:
             # Make sure we're not passing invalid due dates
-            validate_minimum_date(due_date)
+            validate_due_date(due_date)
 
         if bank_notification:
             transaction_type = TransactionType.AVTALEGIRO_WITH_BANK_NOTIFICATION

netsgiro/validators.py

@@ -1,5 +1,5 @@
 """Custom validators for :mod:`attrs`."""
-from datetime import datetime
+from datetime import datetime, timedelta
 from typing import TYPE_CHECKING, Any, Callable
 
 from attr import Attribute
@@ -40,11 +40,20 @@ def validator(instance: object, attribute: Attribute, value: Any) -> None:
     return validator
 
 
-def validate_minimum_date(value: 'date') -> None:
+def validate_due_date(value: 'date') -> None:
     """Make sure payment request dates are gt the minimum allowed date."""
-    if value < get_minimum_due_date(now=datetime.now(tz=OSLO_TZ)):
+    now = datetime.now(tz=OSLO_TZ)
+
+    if value < get_minimum_due_date(now=now):
         raise ValueError(
             'The minimum due date of a transaction is today + 4 calendar days.'
             ' OCR files with due dates earlier than this will be rejected when'
             ' submitted.'
         )
+
+    if value > (now + timedelta(days=365)).date():
+        raise ValueError(
+            'The maximum due date of a transaction is 12 months in the future.'
+            ' OCR files with due dates later than this will be rejected when'
+            ' submitted.'
+        )

tests/test_utils.py

@@ -1,8 +1,10 @@
 from datetime import datetime, timedelta
 
 import holidays
+import pytest
 
 from netsgiro.utils import OSLO_TZ, get_minimum_due_date
+from netsgiro.validators import validate_due_date
 
 monday = datetime(2022, 3, 28, 13, 59, tzinfo=OSLO_TZ)
 
@@ -24,8 +26,8 @@ def test_minimum_due_date_after_cutoff():
     generated after 14:00 Norwegian time should be adjusted by 5 days.
     """
     assert (
-        get_minimum_due_date(monday_after_cutoff)
-        == (monday_after_cutoff + timedelta(days=5)).date()
+            get_minimum_due_date(monday_after_cutoff)
+            == (monday_after_cutoff + timedelta(days=5)).date()
     )
 
 
@@ -49,8 +51,8 @@ def test_minimum_due_date_with_holidays_after_cutoff():
     holidays is upped to 3, so we expect 2 more days of offsetting.
     """
     assert (
-        get_minimum_due_date(day_before_easter_after_cutoff)
-        == (day_before_easter_after_cutoff + timedelta(days=8)).date()
+            get_minimum_due_date(day_before_easter_after_cutoff)
+            == (day_before_easter_after_cutoff + timedelta(days=8)).date()
     )
 
 
@@ -70,3 +72,11 @@ def test_minimum_due_date_without_holiday_dependency():
     sys.modules['holidays'] = None
     assert get_minimum_due_date(monday) == (monday + timedelta(days=4)).date()
     sys.modules['holidays'] = holidays
+
+
+def test_validate_due_date():
+    with pytest.raises(ValueError, match='The minimum due date of a transaction'):
+        validate_due_date(datetime.now().date())
+
+    with pytest.raises(ValueError, match='The maximum due date of a transaction'):
+        validate_due_date((datetime.now() + timedelta(days=366)).date())