Fixed #28474 -- Made DurationField raise ValidationError for inputs that raised OverflowError.

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/forms_tests/field_tests/test_durationfield.py b/tests/forms_tests/field_tests/test_durationfield.py
index ce578ff82f..4eac37c102 100644
--- a/tests/forms_tests/field_tests/test_durationfield.py
+++ b/tests/forms_tests/field_tests/test_durationfield.py
@@ -1,5 +1,6 @@
 import datetime
 
+from django.core.exceptions import ValidationError
 from django.forms import DurationField
 from django.test import SimpleTestCase
 from django.utils.duration import duration_string
@@ -19,6 +20,17 @@ class DurationFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
             f.clean('1 1:15:30.3')
         )
 
+    def test_overflow(self):
+        msg = "The number of days must be between {min_days} and {max_days}.".format(
+            min_days=datetime.timedelta.min.days,
+            max_days=datetime.timedelta.max.days,
+        )
+        f = DurationField()
+        with self.assertRaisesMessage(ValidationError, msg):
+            f.clean('1000000000 00:00:00')
+        with self.assertRaisesMessage(ValidationError, msg):
+            f.clean('-1000000000 00:00:00')
+
     def test_durationfield_render(self):
         self.assertWidgetRendersTo(
             DurationField(initial=datetime.timedelta(hours=1)),