import logging import mock import sys import unittest import testlib import mitogen.core import mitogen.master import mitogen.parent import mitogen.utils from mitogen.core import b def ping(): pass class BufferingTest(testlib.TestCase): klass = mitogen.core.LogHandler def record(self): return logging.LogRecord( name='name', level=99, pathname='pathname', lineno=123, msg='msg', args=(), exc_info=None, ) def build(self): context = mock.Mock() return context, self.klass(context) def test_initially_buffered(self): context, handler = self.build() rec = self.record() handler.emit(rec) self.assertEqual(0, context.send.call_count) self.assertEqual(1, len(handler._buffer)) def test_uncork(self): context, handler = self.build() rec = self.record() handler.emit(rec) handler.uncork() self.assertEqual(1, context.send.call_count) self.assertEqual(None, handler._buffer) _, args, _ = context.send.mock_calls[0] msg, = args self.assertEqual(mitogen.core.FORWARD_LOG, msg.handle) self.assertEqual(b('name\x0099\x00msg'), msg.data) class StartupTest(testlib.RouterMixin, testlib.TestCase): def test_earliest_messages_logged(self): log = testlib.LogCapturer() log.start() c1 = self.router.local() c1.shutdown(wait=True) logs = log.stop() self.assertTrue('Python version is' in logs) self.assertTrue('Parent is context 0 (master)' in logs) def test_earliest_messages_logged_via(self): c1 = self.router.local(name='c1') # ensure any c1-related msgs are processed before beginning capture c1.call(ping) log = testlib.LogCapturer() log.start() c2 = self.router.local(via=c1, name='c2', debug=True) c2.shutdown(wait=True) logs = log.stop() self.assertTrue('Python version is' in logs) expect = 'Parent is context %s (%s)' % (c1.context_id, 'parent') self.assertTrue(expect in logs) StartupTest = unittest.skipIf( condition=sys.version_info < (2, 7) or sys.version_info >= (3, 6), reason="Message log flaky on Python < 2.7 or >= 3.6" )(StartupTest)