diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index bc7062c6211..7224bde8999 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -162,9 +162,9 @@ command line.  For example, the last two lines may be replaced with::
 Running the revised script from the interpreter or another script produces the
 following output::
 
-   testchoice (__main__.TestSequenceFunctions) ... ok
-   testsample (__main__.TestSequenceFunctions) ... ok
-   testshuffle (__main__.TestSequenceFunctions) ... ok
+   test_choice (__main__.TestSequenceFunctions) ... ok
+   test_sample (__main__.TestSequenceFunctions) ... ok
+   test_shuffle (__main__.TestSequenceFunctions) ... ok
 
    ----------------------------------------------------------------------
    Ran 3 tests in 0.110s
@@ -283,32 +283,32 @@ mechanism::
            self.widget.dispose()
            self.widget = None
 
-       def testDefaultSize(self):
+       def test_default_size(self):
            self.assertEqual(self.widget.size(), (50,50),
                             'incorrect default size')
 
-       def testResize(self):
+       def test_resize(self):
            self.widget.resize(100,150)
            self.assertEqual(self.widget.size(), (100,150),
                             'wrong size after resize')
 
 Here we have not provided a :meth:`~TestCase.runTest` method, but have instead
 provided two different test methods.  Class instances will now each run one of
-the :meth:`test\*` methods, with ``self.widget`` created and destroyed
+the :meth:`test_\*` methods, with ``self.widget`` created and destroyed
 separately for each instance.  When creating an instance we must specify the
 test method it is to run.  We do this by passing the method name in the
 constructor::
 
-   defaultSizeTestCase = WidgetTestCase('testDefaultSize')
-   resizeTestCase = WidgetTestCase('testResize')
+   defaultSizeTestCase = WidgetTestCase('test_default_size')
+   resizeTestCase = WidgetTestCase('test_resize')
 
 Test case instances are grouped together according to the features they test.
 :mod:`unittest` provides a mechanism for this: the :dfn:`test suite`,
 represented by :mod:`unittest`'s :class:`TestSuite` class::
 
    widgetTestSuite = unittest.TestSuite()
-   widgetTestSuite.addTest(WidgetTestCase('testDefaultSize'))
-   widgetTestSuite.addTest(WidgetTestCase('testResize'))
+   widgetTestSuite.addTest(WidgetTestCase('test_default_size'))
+   widgetTestSuite.addTest(WidgetTestCase('test_resize'))
 
 For the ease of running tests, as we will see later, it is a good idea to
 provide in each test module a callable object that returns a pre-built test
@@ -316,14 +316,14 @@ suite::
 
    def suite():
        suite = unittest.TestSuite()
-       suite.addTest(WidgetTestCase('testDefaultSize'))
-       suite.addTest(WidgetTestCase('testResize'))
+       suite.addTest(WidgetTestCase('test_default_size'))
+       suite.addTest(WidgetTestCase('test_resize'))
        return suite
 
 or even::
 
    def suite():
-       tests = ['testDefaultSize', 'testResize']
+       tests = ['test_default_size', 'test_resize']
 
        return unittest.TestSuite(map(WidgetTestCase, tests))
 
@@ -334,8 +334,8 @@ populating it with individual tests. For example, ::
 
    suite = unittest.TestLoader().loadTestsFromTestCase(WidgetTestCase)
 
-will create a test suite that will run ``WidgetTestCase.testDefaultSize()`` and
-``WidgetTestCase.testResize``. :class:`TestLoader` uses the ``'test'`` method
+will create a test suite that will run ``WidgetTestCase.test_default_size()`` and
+``WidgetTestCase.test_resize``. :class:`TestLoader` uses the ``'test'`` method
 name prefix to identify test methods automatically.
 
 Note that the order in which the various test cases will be run is
@@ -540,8 +540,8 @@ Test cases
 
       def suite():
           suite = unittest.TestSuite()
-          suite.addTest(WidgetTestCase('testDefaultSize'))
-          suite.addTest(WidgetTestCase('testResize'))
+          suite.addTest(WidgetTestCase('test_default_size'))
+          suite.addTest(WidgetTestCase('test_resize'))
           return suite
 
    Here, we create two instances of :class:`WidgetTestCase`, each of which runs a