test_logging.py 文件源码

def test_nested_with_virtual_parent(self):
        # Logging levels when some parent does not exist yet.
        m = self.next_message

        INF = logging.getLogger("INF")
        GRANDCHILD = logging.getLogger("INF.BADPARENT.UNDEF")
        CHILD = logging.getLogger("INF.BADPARENT")
        INF.setLevel(logging.INFO)

        # These should log.
        GRANDCHILD.log(logging.FATAL, m())
        GRANDCHILD.info(m())
        CHILD.log(logging.FATAL, m())
        CHILD.info(m())

        # These should not log.
        GRANDCHILD.debug(m())
        CHILD.debug(m())

        self.assert_log_lines([
            ('INF.BADPARENT.UNDEF', 'CRITICAL', '1'),
            ('INF.BADPARENT.UNDEF', 'INFO', '2'),
            ('INF.BADPARENT', 'CRITICAL', '3'),
            ('INF.BADPARENT', 'INFO', '4'),
        ])