incubator-superset0.99/tests/logging_configurator_tests.py

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#
#   http://www.apache.org/licenses/LICENSE-2.0
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import logging
import unittest
from unittest.mock import MagicMock

from superset.utils.logging_configurator import LoggingConfigurator


class TestLoggingConfigurator(unittest.TestCase):
    def reset_logging(self):
        # work around all of the import side-effects in superset
        logging.root.manager.loggerDict = {}
        logging.root.handlers = []

    def test_configurator_adding_handler(self):
        class MyEventHandler(logging.Handler):
            def __init__(self):
                super().__init__(level=logging.DEBUG)
                self.received = False

            def handle(self, record):
                if hasattr(record, "testattr"):
                    self.received = True

        class MyConfigurator(LoggingConfigurator):
            def __init__(self, handler):
                self.handler = handler

            def configure_logging(self, app_config, debug_mode):
                super().configure_logging(app_config, debug_mode)
                logging.getLogger().addHandler(self.handler)

        self.reset_logging()

        handler = MyEventHandler()
        cfg = MyConfigurator(handler)
        cfg.configure_logging(MagicMock(), True)

        logging.info("test", extra={"testattr": "foo"})
        self.assertTrue(handler.received)