Refs #34986 -- Fixed some test assertions for PyPy.

These failures were due to minor inconsistencies or implementation
differences between CPython and PyPy.

tests/forms_tests/widget_tests/test_selectdatewidget.py

@@ -5,6 +5,7 @@ from django.forms import DateField, Form, SelectDateWidget
 from django.test import override_settings
 from django.utils import translation
 from django.utils.dates import MONTHS_AP
+from django.utils.version import PYPY
 
 from .base import WidgetTest
 
@@ -611,7 +612,11 @@ class SelectDateWidgetTest(WidgetTest):
             ((None, "12", "1"), None),
             (("2000", None, "1"), None),
             (("2000", "12", None), None),
-            ((str(sys.maxsize + 1), "12", "1"), "0-0-0"),
+            (
+                (str(sys.maxsize + 1), "12", "1"),
+                # PyPy does not raise OverflowError.
+                f"{sys.maxsize + 1}-12-1" if PYPY else "0-0-0",
+            ),
         ]
         for values, expected in tests:
             with self.subTest(values=values):