Refs #32446 -- Removed SERIALIZE test database setting per deprecation timeline.

django/test/utils.py

@@ -26,7 +26,6 @@ from django.db.models.options import Options
 from django.template import Template
 from django.test.signals import template_rendered
 from django.urls import get_script_prefix, set_script_prefix
-from django.utils.deprecation import RemovedInDjango50Warning
 from django.utils.translation import deactivate
 
 try:
@@ -198,26 +197,9 @@ def setup_databases(
             if first_alias is None:
                 first_alias = alias
                 with time_keeper.timed("  Creating '%s'" % alias):
-                    # RemovedInDjango50Warning: when the deprecation ends,
-                    # replace with:
-                    # serialize_alias = (
-                    #     serialized_aliases is None
-                    #     or alias in serialized_aliases
-                    # )
-                    try:
-                        serialize_alias = connection.settings_dict["TEST"]["SERIALIZE"]
-                    except KeyError:
-                        serialize_alias = (
-                            serialized_aliases is None or alias in serialized_aliases
-                        )
-                    else:
-                        warnings.warn(
-                            "The SERIALIZE test database setting is "
-                            "deprecated as it can be inferred from the "
-                            "TestCase/TransactionTestCase.databases that "
-                            "enable the serialized_rollback feature.",
-                            category=RemovedInDjango50Warning,
-                        )
+                    serialize_alias = (
+                        serialized_aliases is None or alias in serialized_aliases
+                    )
                     connection.creation.create_test_db(
                         verbosity=verbosity,
                         autoclobber=not interactive,

docs/ref/settings.txt

@@ -849,23 +849,6 @@ test database will use the name ``'test_' + DATABASE_NAME``.
 
 See :ref:`the-test-database`.
 
-.. setting:: TEST_SERIALIZE
-
-``SERIALIZE``
-^^^^^^^^^^^^^
-
-Boolean value to control whether or not the default test runner serializes the
-database into an in-memory JSON string before running tests (used to restore
-the database state between tests if you don't have transactions). You can set
-this to ``False`` to speed up creation time if you don't have any test classes
-with :ref:`serialized_rollback=True <test-case-serialized-rollback>`.
-
-.. deprecated:: 4.0
-
-   This setting is deprecated as it can be inferred from the
-   :attr:`~django.test.TestCase.databases` with the
-   :ref:`serialized_rollback <test-case-serialized-rollback>` option enabled.
-
 .. setting:: TEST_TEMPLATE
 
 ``TEMPLATE``

docs/releases/1.7.1.txt

@@ -71,8 +71,8 @@ Bugfixes
 * Made ``migrations.RunSQL`` no longer require percent sign escaping. This is
   now consistent with ``cursor.execute()`` (:ticket:`23426`).
 
-* Made the :setting:`SERIALIZE <TEST_SERIALIZE>` entry in the
-  :setting:`TEST <DATABASE-TEST>` dictionary usable (:ticket:`23421`).
+* Made the ``SERIALIZE`` entry in the :setting:`TEST <DATABASE-TEST>`
+  dictionary usable (:ticket:`23421`).
 
 * Fixed bug in migrations that prevented foreign key constraints to unmanaged
   models with a custom primary key (:ticket:`23415`).

docs/releases/5.0.txt

@@ -255,7 +255,7 @@ in Django 5.0.
 See :ref:`deprecated-features-4.0` for details on these changes, including how
 to remove usage of these features.
 
-* ...
+* The ``SERIALIZE`` test setting is removed.
 
 See :ref:`deprecated-features-4.1` for details on these changes, including how
 to remove usage of these features.

docs/topics/testing/advanced.txt

@@ -829,10 +829,6 @@ can be useful during testing.
     ``False`` to speed up creation time if you don't have any test classes
     with :ref:`serialized_rollback=True <test-case-serialized-rollback>`.
 
-    If you are using the default test runner, you can control this with the
-    the :setting:`SERIALIZE <TEST_SERIALIZE>` entry in the :setting:`TEST
-    <DATABASE-TEST>` dictionary.
-
     ``keepdb`` determines if the test run should use an existing
     database, or create a new one. If ``True``, the existing
     database will be used, or created if not present. If ``False``,

tests/test_runner/tests.py

@@ -819,7 +819,7 @@ class AliasedDefaultTestSetupTest(unittest.TestCase):
             runner_instance.teardown_databases(old_config)
 
 
-class SetupDatabasesTests(SimpleTestCase):
+class SetupDatabasesTests(unittest.TestCase):
     def setUp(self):
         self.runner_instance = DiscoverRunner(verbosity=0)
 
@@ -912,30 +912,6 @@ class SetupDatabasesTests(SimpleTestCase):
             verbosity=0, autoclobber=False, serialize=True, keepdb=False
         )
 
-    def test_serialized_off(self):
-        tested_connections = db.ConnectionHandler(
-            {
-                "default": {
-                    "ENGINE": "django.db.backends.dummy",
-                    "TEST": {"SERIALIZE": False},
-                },
-            }
-        )
-        msg = (
-            "The SERIALIZE test database setting is deprecated as it can be "
-            "inferred from the TestCase/TransactionTestCase.databases that "
-            "enable the serialized_rollback feature."
-        )
-        with mock.patch(
-            "django.db.backends.dummy.base.DatabaseWrapper.creation_class"
-        ) as mocked_db_creation:
-            with mock.patch("django.test.utils.connections", new=tested_connections):
-                with self.assertWarnsMessage(RemovedInDjango50Warning, msg):
-                    self.runner_instance.setup_databases()
-        mocked_db_creation.return_value.create_test_db.assert_called_once_with(
-            verbosity=0, autoclobber=False, serialize=False, keepdb=False
-        )
-
 
 @skipUnlessDBFeature("supports_sequence_reset")
 class AutoIncrementResetTest(TransactionTestCase):