Python unittest and discovery

I have directories, which contain files named like: test_foo.py

Each file is a test case.

I would like to

1. Run all the tests in a directory from the command line. I am using unittest2, since we are running Python 2.5.1. From one of these directories I tried typing this at the command line:

    python -m unittest2 discover -p 'test_*.py'
   

   and several different variants. I get no error, but nothing happens. I was expecting all the tests within all the test cases in that directory to run and get results.

2. I also tried having a script in the directory where I did this:

    loader = unittest2.TestLoader()
    t = loader.discover('.')
   

   If I print the t variable, I can see my test cases, but from the documentation I can't figure out what to do with the loader object once I have it.