diff --git a/Lib/test/test_unittest/test_result.py b/Lib/test/test_unittest/test_result.py
index cf291a2ef43b77a..ec6f0708ba286a5 100644
--- a/Lib/test/test_unittest/test_result.py
+++ b/Lib/test/test_unittest/test_result.py
@@ -5,7 +5,6 @@
 import unittest
 from test.support import (
     captured_stdout,
-    force_not_colorized,
     force_not_colorized_test_class,
     warnings_helper,
 )
@@ -37,6 +36,7 @@ def bad_cleanup2():
     raise ValueError('bad cleanup2')
 
 
+@force_not_colorized_test_class
 class Test_TestResult(unittest.TestCase):
     # Note: there are not separate tests for TestResult.wasSuccessful(),
     # TestResult.errors, TestResult.failures, TestResult.testsRun or
@@ -208,7 +208,6 @@ def test_1(self):
         self.assertIs(test_case, test)
         self.assertIsInstance(formatted_exc, str)
 
-    @force_not_colorized
     def test_addFailure_filter_traceback_frames(self):
         class Foo(unittest.TestCase):
             def test_1(self):
@@ -235,7 +234,6 @@ def get_exc_info():
         self.assertEqual(len(dropped), 1)
         self.assertIn("raise self.failureException(msg)", dropped[0])
 
-    @force_not_colorized
     def test_addFailure_filter_traceback_frames_context(self):
         class Foo(unittest.TestCase):
             def test_1(self):
@@ -265,7 +263,6 @@ def get_exc_info():
         self.assertEqual(len(dropped), 1)
         self.assertIn("raise self.failureException(msg)", dropped[0])
 
-    @force_not_colorized
     def test_addFailure_filter_traceback_frames_chained_exception_self_loop(self):
         class Foo(unittest.TestCase):
             def test_1(self):
@@ -291,7 +288,6 @@ def get_exc_info():
         formatted_exc = result.failures[0][1]
         self.assertEqual(formatted_exc.count("Exception: Loop\n"), 1)
 
-    @force_not_colorized
     def test_addFailure_filter_traceback_frames_chained_exception_cycle(self):
         class Foo(unittest.TestCase):
             def test_1(self):
@@ -453,7 +449,6 @@ def testFailFast(self):
         result.addUnexpectedSuccess(None)
         self.assertTrue(result.shouldStop)
 
-    @force_not_colorized
     def testFailFastSetByRunner(self):
         stream = BufferedWriter()
         runner = unittest.TextTestRunner(stream=stream, failfast=True)
@@ -465,6 +460,7 @@ def test(result):
         self.assertTrue(stream.getvalue().endswith('\n\nOK\n'))
 
 
+@force_not_colorized_test_class
 class Test_TextTestResult(unittest.TestCase):
     maxDiff = None
 
@@ -627,7 +623,6 @@ def _run_test(self, test_name, verbosity, tearDownError=None):
         test.run(result)
         return stream.getvalue()
 
-    @force_not_colorized
     def testDotsOutput(self):
         self.assertEqual(self._run_test('testSuccess', 1), '.')
         self.assertEqual(self._run_test('testSkip', 1), 's')
@@ -636,7 +631,6 @@ def testDotsOutput(self):
         self.assertEqual(self._run_test('testExpectedFailure', 1), 'x')
         self.assertEqual(self._run_test('testUnexpectedSuccess', 1), 'u')
 
-    @force_not_colorized
     def testLongOutput(self):
         classname = f'{__name__}.{self.Test.__qualname__}'
         self.assertEqual(self._run_test('testSuccess', 2),
@@ -652,21 +646,17 @@ def testLongOutput(self):
         self.assertEqual(self._run_test('testUnexpectedSuccess', 2),
                          f'testUnexpectedSuccess ({classname}.testUnexpectedSuccess) ... unexpected success\n')
 
-    @force_not_colorized
     def testDotsOutputSubTestSuccess(self):
         self.assertEqual(self._run_test('testSubTestSuccess', 1), '.')
 
-    @force_not_colorized
     def testLongOutputSubTestSuccess(self):
         classname = f'{__name__}.{self.Test.__qualname__}'
         self.assertEqual(self._run_test('testSubTestSuccess', 2),
                          f'testSubTestSuccess ({classname}.testSubTestSuccess) ... ok\n')
 
-    @force_not_colorized
     def testDotsOutputSubTestMixed(self):
         self.assertEqual(self._run_test('testSubTestMixed', 1), 'sFE')
 
-    @force_not_colorized
     def testLongOutputSubTestMixed(self):
         classname = f'{__name__}.{self.Test.__qualname__}'
         self.assertEqual(self._run_test('testSubTestMixed', 2),
@@ -675,7 +665,6 @@ def testLongOutputSubTestMixed(self):
                 f'  testSubTestMixed ({classname}.testSubTestMixed) [fail] (c=3) ... FAIL\n'
                 f'  testSubTestMixed ({classname}.testSubTestMixed) [error] (d=4) ... ERROR\n')
 
-    @force_not_colorized
     def testDotsOutputTearDownFail(self):
         out = self._run_test('testSuccess', 1, AssertionError('fail'))
         self.assertEqual(out, 'F')
@@ -686,7 +675,6 @@ def testDotsOutputTearDownFail(self):
         out = self._run_test('testSkip', 1, AssertionError('fail'))
         self.assertEqual(out, 'sF')
 
-    @force_not_colorized
     def testLongOutputTearDownFail(self):
         classname = f'{__name__}.{self.Test.__qualname__}'
         out = self._run_test('testSuccess', 2, AssertionError('fail'))