In Python 2.6 Document, Library reference 26.3 unittest
(http://docs.python.org/library/unittest.html#unittest.TestCase.run)
The description of TestCase.run method says that ``If result is omitted
or None, a temporary result object is created (by calling the
defaultTestCase() method) and used'', but I think it should be
defaultTestResult() instead of defaultTestCase().

>>> class MyTest(TestCase):
...   def runTest(self): pass
...   def defaultTestCase(self):
...     print('defaultTestCase called')
...
>>> test = MyTest()
>>> test.run()
>>> class MyTest(TestCase):
...   def runTest(self): pass
...   def defaultTestResult(self):
...     print('defaultTestResult called')
...
>>> test = MyTest()
>>> test.run()
defaultTestResult called
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Programmi\Python31\lib\unittest.py", line 461, in run
    result.startTest(self)
AttributeError: 'NoneType' object has no attribute 'startTest'

I think you are right, here only "defaultTestResult called" is printed
(just before the traceback). Also there's no doc about
defaultTestCase(). The doc can also be clearer about 'result object',
possibly replacing that part with 'a temporary TestResult instance'.

Fixed in r73712.
I left "result object" because the object can also be a subclass of
TestResult. I also changed the last part to clarify that the result
object is never returned to the caller, even when it's passed to run().

Thanks!