| ) | 
| testFunc[, setUp[, tearDown[, description]]]) | 
| [tests]) | 
| ) | 
| [stream[, descriptions[, verbosity]]]) | 
| [module[, defaultTest[, argv[, testRunner[, testRunner]]]]]) | 
if __name__ == '__main__':
    unittest.main()
In some cases, the existing tests may have be written using the doctest module. If so, that module provides a DocTestSuite class that can automatically build unittest.TestSuite instances from the existing test code. New in version 2.3.
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