Make unit tests compatible with Python 3.11 to fix build errors

Closes: #1026476
LP: #2002012

debian/patches/0012-Add-Python-3.11-support-for-tests.patch

+Description: Fix test_runner/test_utils tests on Python 3.11+.
+ Python 3.11 uses fully qualified test name in unittest output. See
+ https://github.com/python/cpython/commit/755be9b1505af591b9f2ee424a6525b6c2b65ce9
+ Note: This is a temporary patch for Django 3.2 to maintain compatibility with
+ Python 3.11 while transitioning to Django 4.x
+Author: Mariusz Felisiak <felisiak.mariusz@gmail.com>
+Origin: upstream, https://github.com/django/django/commit/2ee4caf56b8e000cabbb73ad81ff05738d6d0a35
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/python-django/+bug/2002012
+Forwarded: no
+Last-Update: 2023-01-06
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- a/django/utils/version.py
++++ b/django/utils/version.py
+@@ -15,6 +15,7 @@
+ PY38 = sys.version_info >= (3, 8)
+ PY39 = sys.version_info >= (3, 9)
+ PY310 = sys.version_info >= (3, 10)
++PY311 = sys.version_info >= (3, 11)
+ 
+ 
+ def get_version(version=None):
+--- a/tests/test_runner/test_debug_sql.py
++++ b/tests/test_runner/test_debug_sql.py
+@@ -4,6 +4,7 @@
+ from django.db import connection
+ from django.test import TestCase
+ from django.test.runner import DiscoverRunner
++from django.utils.version import PY311
+ 
+ from .models import Person
+ 
+@@ -100,14 +101,17 @@
+             '''"test_runner_person"."first_name" = 'subtest-fail';'''),
+     ]
+ 
++    # Python 3.11 uses fully qualified test name in the output.
++    method_name = ".runTest" if PY311 else ""
++    test_class_path = "test_runner.test_debug_sql.TestDebugSQL"
+     verbose_expected_outputs = [
+-        'runTest (test_runner.test_debug_sql.TestDebugSQL.FailingTest) ... FAIL',
+-        'runTest (test_runner.test_debug_sql.TestDebugSQL.ErrorTest) ... ERROR',
+-        'runTest (test_runner.test_debug_sql.TestDebugSQL.PassingTest) ... ok',
++        f"runTest ({test_class_path}.FailingTest{method_name}) ... FAIL",
++        f"runTest ({test_class_path}.ErrorTest{method_name}) ... ERROR",
++        f"runTest ({test_class_path}.PassingTest{method_name}) ... ok",
+         # If there are errors/failures in subtests but not in test itself,
+         # the status is not written. That behavior comes from Python.
+-        'runTest (test_runner.test_debug_sql.TestDebugSQL.FailingSubTest) ...',
+-        'runTest (test_runner.test_debug_sql.TestDebugSQL.ErrorSubTest) ...',
++        f"runTest ({test_class_path}.FailingSubTest{method_name}) ...",
++        f"runTest ({test_class_path}.ErrorSubTest{method_name}) ...",
+         ('''SELECT COUNT(*) AS "__count" '''
+             '''FROM "test_runner_person" WHERE '''
+             '''"test_runner_person"."first_name" = 'pass';'''),
+--- a/tests/test_runner/test_parallel.py
++++ b/tests/test_runner/test_parallel.py
+@@ -2,7 +2,7 @@
+ 
+ from django.test import SimpleTestCase
+ from django.test.runner import RemoteTestResult
+-from django.utils.version import PY37
++from django.utils.version import PY37, PY311
+ 
+ try:
+     import tblib
+@@ -79,7 +79,11 @@
+ 
+         event = events[1]
+         self.assertEqual(event[0], 'addSubTest')
+-        self.assertEqual(str(event[2]), 'dummy_test (test_runner.test_parallel.SampleFailingSubtest) (index=0)')
++        self.assertEqual(str(event[2]),
++            "dummy_test (test_runner.test_parallel.SampleFailingSubtest%s) (index=0)"
++            # Python 3.11 uses fully qualified test name in the output.
++            % (".dummy_test" if PY311 else ""),
++        )
+         trailing_comma = '' if PY37 else ','
+         self.assertEqual(repr(event[3][1]), "AssertionError('0 != 1'%s)" % trailing_comma)
+ 
+--- a/tests/test_utils/tests.py
++++ b/tests/test_utils/tests.py
+@@ -26,6 +26,7 @@
+ )
+ from django.urls import NoReverseMatch, path, reverse, reverse_lazy
+ from django.utils.deprecation import RemovedInDjango41Warning
++from django.utils.version import PY311
+ 
+ from .models import Car, Person, PossessedCar
+ from .views import empty_response
+@@ -78,9 +79,11 @@
+             SkipTestCase('test_foo').test_foo,
+             ValueError,
+             "skipUnlessDBFeature cannot be used on test_foo (test_utils.tests."
+-            "SkippingTestCase.test_skip_unless_db_feature.<locals>.SkipTestCase) "
++            "SkippingTestCase.test_skip_unless_db_feature.<locals>.SkipTestCase%s) "
+             "as SkippingTestCase.test_skip_unless_db_feature.<locals>.SkipTestCase "
+             "doesn't allow queries against the 'default' database."
++            # Python 3.11 uses fully qualified test name in the output.
++            % (".test_foo" if PY311 else ""),
+         )
+ 
+     def test_skip_if_db_feature(self):
+@@ -122,9 +125,11 @@
+             SkipTestCase('test_foo').test_foo,
+             ValueError,
+             "skipIfDBFeature cannot be used on test_foo (test_utils.tests."
+-            "SkippingTestCase.test_skip_if_db_feature.<locals>.SkipTestCase) "
++            "SkippingTestCase.test_skip_if_db_feature.<locals>.SkipTestCase%s) "
+             "as SkippingTestCase.test_skip_if_db_feature.<locals>.SkipTestCase "
+             "doesn't allow queries against the 'default' database."
++            # Python 3.11 uses fully qualified test name in the output.
++            % (".test_foo" if PY311 else ""),
+         )
+ 
+ 

debian/patches/series

@@ -9,3 +9,4 @@
 0009-Fixed-33282-Fixed-a-crash-when-OR-ing-subquery-and-a.patch
 0010-Fixed-inspectdb.tests.InspectDBTestCase.test_custom_.patch
 0011-Moved-RequestSite-import-to-the-toplevel.patch
+0012-Add-Python-3.11-support-for-tests.patch