python-cement/tests/core/log_tests.py

"""Tests for cement.core.log."""

import logging
from cement.core import exc, backend, handler, log
from cement.utils import test
from cement.utils.misc import init_defaults

class BogusHandler1(log.CementLogHandler):
    class Meta:
        interface = log.ILog
        label = 'bogus'

class LogTestCase(test.CementCoreTestCase):
    def setUp(self):
        self.app = self.make_app()

    @test.raises(exc.InterfaceError)
    def test_unproviding_handler(self):
        try:
            handler.register(BogusHandler1)
        except exc.InterfaceError:
            raise

    def test_logging(self):
        defaults = init_defaults()
        defaults['log'] = dict(
            file='/dev/null',
            to_console=True
            )
        app = self.make_app(config_defaults=defaults)
        app.setup()
        app.log.info('Info Message')
        app.log.warn('Warn Message')
        app.log.error('Error Message')
        app.log.fatal('Fatal Message')
        app.log.debug('Debug Message')

    def test_bogus_log_level(self):
        app = self.make_app('test')
        app.setup()
        app.config.set('log', 'file', '/dev/null')
        app.config.set('log', 'to_console', True)

        # setup logging again
        app.log._setup(app)
        app.log.set_level('BOGUS')

    def test_get_level(self):
        self.app.setup()
        self.eq('INFO', self.app.log.get_level())

    def test_console_log(self):
        app = self.make_app('test', debug=True)
        app.setup()

        app.config.set('log', 'file', '/dev/null')
        app.config.set('log', 'to_console', True)

        app.log._setup(app)
        app.log.info('Tested.')