Python testfixtures 模块，log_capture() 实例源码

def setUp(self):
        # If you depend on log messages, use testfixtures.log_capture() to test
        # for their presence and assert their contents.  For the purposes of
        # the test runner, log messages on stdout/stderr are spam.
        logging.getLogger().setLevel(logging.WARNING)

def setUp(self):
        # If you depend on log messages, use testfixtures.log_capture() to test
        # for their presence and assert their contents.  For the purposes of
        # the test runner, log messages on stdout/stderr are spam.
        logging.getLogger().setLevel(logging.WARNING)
        self._old_cwd = os.getcwd()
        self.temp_d = tempfile.mkdtemp()
        os.chdir(self.temp_d)