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File Content: `_log.py`

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 for assertLogs() and assertNoLogs() """

    LOGGING_FORMAT = "%(levelname)s:%(name)s:%(message)s"

    def __init__(self, test_case, logger_name, level, no_logs):
        _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
        self.no_logs = no_logs

    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.setLevel(self.level)
        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
        if self.no_logs:
            return
        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 self.no_logs:
            # assertNoLogs
            if len(self.watcher.records) > 0:
                self._raiseFailure(
                    "Unexpected logs found: {!r}".format(
                        self.watcher.output
                    )
                )

        else:
            # assertLogs
            if len(self.watcher.records) == 0:
                self._raiseFailure(
                    "no logs of level {} or higher triggered on {}"
                    .format(logging.getLevelName(self.level), self.logger.name))

Name	Size	Permission
__pycache__	---	0755
__init__.py	3761 bytes	0644
__main__.py	472 bytes	0644
_log.py	2746 bytes	0644
async_case.py	6368 bytes	0644
case.py	57680 bytes	0644
loader.py	22702 bytes	0644
main.py	11256 bytes	0644
mock.py	103283 bytes	0644
result.py	8518 bytes	0644
runner.py	8051 bytes	0644
signals.py	2403 bytes	0644
suite.py	13512 bytes	0644
util.py	5215 bytes	0644

File Content: _log.py

File Content: `_log.py`