Fixed #30245 -- Added -k option to DiscoverRunner.

docs/ref/django-admin.txt

@@ -1360,7 +1360,7 @@ The ``test`` command receives options on behalf of the specified
 :option:`--testrunner`. These are the options of the default test runner:
 :class:`~django.test.runner.DiscoverRunner`.
 
-.. django-admin-option:: --keepdb, -k
+.. django-admin-option:: --keepdb
 
 Preserves the test database between test runs. This has the advantage of
 skipping both the create and destroy actions which can greatly decrease the
@@ -1438,6 +1438,18 @@ May be specified multiple times and combined with :option:`test --exclude-tag`.
 Excludes tests :ref:`marked with the specified tags <topics-tagging-tests>`.
 May be specified multiple times and combined with :option:`test --tag`.
 
+.. django-admin-option:: -k TEST_NAME_PATTERNS
+
+.. versionadded:: 3.0
+
+Runs test methods and classes matching test name patterns, in the same way as
+:option:`unittest's -k option<unittest.-k>`. Can be specified multiple times.
+
+.. admonition:: Python 3.7 and later
+
+    This feature is only available for Python 3.7 and later.
+
+
 ``testserver``
 --------------
 

docs/releases/3.0.txt

@@ -238,6 +238,9 @@ Tests
   attribute :attr:`~django.test.Response.exc_info`, a tuple providing
   information of the exception that occurred.
 
+* Tests and test cases to run can be selected by test name pattern using the
+  new :option:`test -k` option.
+
 URLs
 ~~~~
 
@@ -360,6 +363,9 @@ Miscellaneous
   This converts ``'`` to ``'`` instead of the previous equivalent decimal
   code ``'``.
 
+* The ``django-admin test -k`` option now works as the :option:`unittest
+  -k<unittest.-k>` option rather than as a shortcut for ``--keepdb``.
+
 .. _deprecated-features-3.0:
 
 Features deprecated in 3.0

docs/topics/testing/advanced.txt

@@ -424,7 +424,7 @@ behavior. This class defines the ``run_tests()`` entry point, plus a
 selection of other methods that are used to by ``run_tests()`` to set up,
 execute and tear down the test suite.
 
-.. class:: DiscoverRunner(pattern='test*.py', top_level=None, verbosity=1, interactive=True, failfast=False, keepdb=False, reverse=False, debug_mode=False, debug_sql=False, **kwargs)
+.. class:: DiscoverRunner(pattern='test*.py', top_level=None, verbosity=1, interactive=True, failfast=False, keepdb=False, reverse=False, debug_mode=False, debug_sql=False, test_name_patterns=None, **kwargs)
 
     ``DiscoverRunner`` will search for tests in any file matching ``pattern``.
 
@@ -463,6 +463,9 @@ execute and tear down the test suite.
     as the traceback. If ``verbosity`` is ``2``, then queries in all tests are
     output.
 
+    ``test_name_patterns`` can be used to specify a set of patterns for
+    filtering test methods and classes by their names.
+
     Django may, from time to time, extend the capabilities of the test runner
     by adding new arguments. The ``**kwargs`` declaration allows for this
     expansion. If you subclass ``DiscoverRunner`` or write your own test