exarkun@boson:~$ cat > test_foo.py
from unittest import TestCase

class SomeTests(TestCase):
    def test_foo(self):
        pass
exarkun@boson:~$ python -m unittest test_foo

----------------------------------------------------------------------
Ran 0 tests in 0.000s

OK
exarkun@boson:~$ python -m unittest test_foo.SomeTests
Traceback (most recent call last):
  File "/usr/lib/python2.5/runpy.py", line 95, in run_module
    filename, loader, alter_sys)
  File "/usr/lib/python2.5/runpy.py", line 52, in _run_module_code
    mod_name, mod_fname, mod_loader)
  File "/usr/lib/python2.5/runpy.py", line 32, in _run_code
    exec code in run_globals
  File "/usr/lib/python2.5/unittest.py", line 816, in <module>
    main(module=None)
  File "/usr/lib/python2.5/unittest.py", line 767, in __init__
    self.parseArgs(argv)
  File "/usr/lib/python2.5/unittest.py", line 794, in parseArgs
    self.createTests()
  File "/usr/lib/python2.5/unittest.py", line 800, in createTests
    self.module)
  File "/usr/lib/python2.5/unittest.py", line 565, in loadTestsFromNames
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "/usr/lib/python2.5/unittest.py", line 553, in loadTestsFromName
    test = obj()
  File "/usr/lib/python2.5/unittest.py", line 209, in __init__
    (self.__class__, methodName)
ValueError: no such test method in <class 'test_foo.SomeTests'>: runTest
exarkun@boson:~$ python -m unittest test_foo.SomeTests.test_foo
.
----------------------------------------------------------------------
Ran 1 test in 0.000s

OK
exarkun@boson:~$ 

I don't really know what's happening in the middle case.  The first case
seems to fail because the test loader goes around looking for subclasses
of __main__.TestCase.  It only finds subclasses of unittest.TestCase,
though, which it rejects.

I can duplicate the problem - I wonder if this has to do with the
refactoring into a package? Anyway, thanks for catching this.

Ha - no I can't reproduce it on trunk.

The python -m features are new in trunk and neither documented nor
working in 2.4-2.6.

This isn't a bug - the command line message if you run "python -m
unittest" on Python 2.4-2.6 is just confusing. It has never worked.

The documentation should be fixed then:
http://docs.python.org/2/library/unittest#command-line-interface

> The documentation should be fixed then:
> http://docs.python.org/2/library/unittest#command-line-interface

The documentation already covers that "python -m unittest test_module" usage works only in 2.7+.

"Changed in version 2.7: In earlier versions it was only possible to run individual test methods and not modules or classes."

> The documentation already covers that "python -m unittest test_module" 
> usage works only in 2.7+.
>
> "Changed in version 2.7: In earlier versions it was only possible to
> run individual test methods and not modules or classes."

But the command line help says otherwise:

$ python -m unittest -h
Usage: unittest.py [options] [test] [...]

Options:
  -h, --help       Show this message
  -v, --verbose    Verbose output
  -q, --quiet      Minimal output

Examples:
  unittest.py                               - run default set of tests
  unittest.py MyTestSuite                   - run suite 'MyTestSuite'
  unittest.py MyTestCase.testSomething      - run MyTestCase.testSomething
  unittest.py MyTestCase                    - run all 'test*' test methods
                                               in MyTestCase

$ python --version
Python 2.6.6