'Test change_tv_download_dir'

def test_change_tv_download_dir(self):

    sickbeard.TV_DOWNLOAD_DIR = ''
    self.assertTrue(config.change_tv_download_dir('cache'))
    self.assertFalse(config.change_tv_download_dir('/:/Downloads/Completed'))
    self.assertTrue(config.change_tv_download_dir(''))
