Refs #29708 -- Removed PickleSerializer per deprecation timeline.

tests/serializers/tests.py

@@ -1,4 +1,3 @@
-import pickle
 from datetime import datetime
 from functools import partialmethod
 from io import StringIO
@@ -6,12 +5,11 @@ from unittest import mock, skipIf
 
 from django.core import serializers
 from django.core.serializers import SerializerDoesNotExist
-from django.core.serializers.base import PickleSerializer, ProgressBar
+from django.core.serializers.base import ProgressBar
 from django.db import connection, transaction
 from django.http import HttpResponse
 from django.test import SimpleTestCase, override_settings, skipUnlessDBFeature
-from django.test.utils import Approximate, ignore_warnings
-from django.utils.deprecation import RemovedInDjango50Warning
+from django.test.utils import Approximate
 
 from .models import (
     Actor,
@@ -487,31 +485,6 @@ class SerializersTransactionTestBase:
         self.assertEqual(art_obj.author.name, "Agnes")
 
 
-class PickleSerializerTests(SimpleTestCase):
-    @ignore_warnings(category=RemovedInDjango50Warning)
-    def test_serializer_protocol(self):
-        serializer = PickleSerializer(protocol=3)
-        self.assertEqual(serializer.protocol, 3)
-        # If protocol is not provided, it defaults to pickle.HIGHEST_PROTOCOL
-        serializer = PickleSerializer()
-        self.assertEqual(serializer.protocol, pickle.HIGHEST_PROTOCOL)
-
-    @ignore_warnings(category=RemovedInDjango50Warning)
-    def test_serializer_loads_dumps(self):
-        serializer = PickleSerializer()
-        test_data = "test data"
-        dump = serializer.dumps(test_data)
-        self.assertEqual(serializer.loads(dump), test_data)
-
-    def test_serializer_warning(self):
-        msg = (
-            "PickleSerializer is deprecated due to its security risk. Use "
-            "JSONSerializer instead."
-        )
-        with self.assertRaisesMessage(RemovedInDjango50Warning, msg):
-            PickleSerializer()
-
-
 def register_tests(test_class, method_name, test_func, exclude=()):
     """
     Dynamically create serializer tests to ensure that all registered