pyunittest 2 regression

Mark Pilgrim gives a short but very useful program to run all your tests automatically in . If your testfiles all end in "test.py", this program will import all the classes in these files, make a TestSuite out of the TestCases or TestSuites they contain, and start unittest with that TestSuite. I call this program 'TestRunner.py':

"""Regression testing framework
   This module will search for scripts in the same directory named
   XYZTest.py.  Each such script should be a test suite that tests a
   module through PyUnit.  (As of Python 2.1, PyUnit is included in
   the standard library as "unittest".)  This script will aggregate all
   found test suites into one big test suite and run them all at once.
   """

   import unittest

   import sys, os, re, unittest

   def regressionTest():
   path = os.path.split(sys.argv[0])[0] or os.getcwd()
   files = os.listdir(path)
   test = re.compile("test.py$", re.IGNORECASE)
   files = filter(test.search, files)
   filenameToModuleName = lambda f: os.path.splitext(f)[0]
   moduleNames = map(filenameToModuleName, files)
   modules = map(__import__, moduleNames)
   load = unittest.defaultTestLoader.loadTestsFromModule
   return unittest.TestSuite(map(load, modules))

   if __name__ == "__main__":
      unittest.main(defaultTest="regressionTest")