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from unittest.mock import Mock
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from autopilot import tests
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from autopilot.logging import log_action
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from autopilot._logging import TestCaseLoggingFixture
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class LogHandlerTestCase(testtools.TestCase):
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"""A mixin that adds a memento loghandler for testing logging.
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Originally written by:
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class MementoHandler(logging.Handler):
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"""A handler class which stores logging records in a list."""
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def __init__(self, *args, **kwargs):
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"""Create the instance, and add a records attribute."""
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logging.Handler.__init__(self, *args, **kwargs)
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def emit(self, record):
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"""Just add the record to self.records."""
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self.records.append(record)
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def check(self, level, msg, check_traceback=False):
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"""Check that something is logged."""
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for rec in self.records:
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if rec.levelname == level:
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result = str(msg) in rec.getMessage()
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if not result and check_traceback:
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result = str(msg) in rec.exc_text
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"""Add the memento handler to the root logger."""
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super(LogHandlerTestCase, self).setUp()
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self.memento_handler = self.MementoHandler()
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self.root_logger = logging.getLogger()
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self.root_logger.addHandler(self.memento_handler)
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"""Remove the memento handler from the root logger."""
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self.root_logger.removeHandler(self.memento_handler)
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super(LogHandlerTestCase, self).tearDown()
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def assertLogLevelContains(self, level, message, check_traceback=False):
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check = self.memento_handler.check(
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level, message, check_traceback=check_traceback)
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msg = ('Expected logging message/s could not be found:\n%s\n'
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'Current logging records are:\n%s')
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expected = '\t%s: %s' % (level, message)
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records = ['\t%s: %s' % (r.levelname, r.getMessage())
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for r in self.memento_handler.records]
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self.assertTrue(check, msg % (expected, '\n'.join(records)))
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class ObjectWithLogDecorator(object):
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@log_action(logging.info)
added
removed
autopilot/tests/unit/test_logging.py
