import sys, os, shutil, unittest
import optparse


class OptionParser (optparse.OptionParser):
    def __init__(self, *args):
        optparse.OptionParser.__init__(self, *args)

    def exit(self, code, text):
        pass



def clean_dir(path):
    if os.path.exists(path):
        shutil.rmtree(path)

def makedirs(path):
    if not os.path.exists(path):
        os.makedirs(path)


def make_clean_dir(path):
    if os.path.exists(path):
        shutil.rmtree(path)
    os.makedirs(path)


def list_tests(stack=0):
    
    # get environment
    var = __import__("__main__").__dict__

    for name, obj in var.iteritems():
        if isinstance(obj, type) and issubclass(obj, unittest.TestCase):
            for attr in dir(obj):
                if attr.startswith("test"):
                    print "%s.%s" % (name, attr),
                    doc = getattr(obj, attr).__doc__
                    if doc:
                        print "--", doc.split("\n")[0]
                    else:
                        print


def test_main():

    o = OptionParser()
    o.add_option("-l", "--list_tests", action="store_true")

    conf, args = o.parse_args(sys.argv)

    if conf.list_tests:
        list_tests(1)
        return

    unittest.main()