File manager - Edit - /opt/alt/python39/lib64/python3.9/unittest/_log.py
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import logging import collections from .case import _BaseTestCaseContext _LoggingWatcher = collections.namedtuple("_LoggingWatcher", ["records", "output"]) class _CapturingHandler(logging.Handler): """ A logging handler capturing all (raw and formatted) logging output. """ def __init__(self): logging.Handler.__init__(self) self.watcher = _LoggingWatcher([], []) def flush(self): pass def emit(self, record): self.watcher.records.append(record) msg = self.format(record) self.watcher.output.append(msg) class _AssertLogsContext(_BaseTestCaseContext): """A context manager used to implement TestCase.assertLogs().""" LOGGING_FORMAT = "%(levelname)s:%(name)s:%(message)s" def __init__(self, test_case, logger_name, level): _BaseTestCaseContext.__init__(self, test_case) self.logger_name = logger_name if level: self.level = logging._nameToLevel.get(level, level) else: self.level = logging.INFO self.msg = None def __enter__(self): if isinstance(self.logger_name, logging.Logger): logger = self.logger = self.logger_name else: logger = self.logger = logging.getLogger(self.logger_name) formatter = logging.Formatter(self.LOGGING_FORMAT) handler = _CapturingHandler() handler.setFormatter(formatter) self.watcher = handler.watcher self.old_handlers = logger.handlers[:] self.old_level = logger.level self.old_propagate = logger.propagate logger.handlers = [handler] logger.setLevel(self.level) logger.propagate = False return handler.watcher def __exit__(self, exc_type, exc_value, tb): self.logger.handlers = self.old_handlers self.logger.propagate = self.old_propagate self.logger.setLevel(self.old_level) if exc_type is not None: # let unexpected exceptions pass through return False if len(self.watcher.records) == 0: self._raiseFailure( "no logs of level {} or higher triggered on {}" .format(logging.getLevelName(self.level), self.logger.name))
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