def METHOD_NAME(self):
    """
    Writes a list of failed_suites to sys.stderr
    """
    if self.failed_suites:
        msg = colorize('red', "\n\n{bar}\nTests failed in the following suites:\n* ".format(bar="=" * 48))
        msg += colorize('red', '\n* '.join([s.root for s in self.failed_suites]) + '\n\n')
    else:
        msg = colorize('green', "\n\n{bar}\nNo test failures ".format(bar="=" * 48))
    print(msg)