###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies GmbH
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################
# we need to select a txaio subsystem because we're importing the base
# protocol classes here for testing purposes. "normally" yo'd import
# from autobahn.twisted.wamp or autobahn.asyncio.wamp explicitly.
from autobahn import wamp
from autobahn.wamp import message
from autobahn.wamp import exception
from autobahn.wamp import protocol
import unittest
[docs]class TestPeerExceptions(unittest.TestCase):
[docs] def test_exception_from_message(self):
session = protocol.BaseSession()
@wamp.error("com.myapp.error1")
class AppError1(Exception):
pass
@wamp.error("com.myapp.error2")
class AppError2(Exception):
pass
session.define(AppError1)
session.define(AppError2)
# map defined errors to user exceptions
emsg = message.Error(message.Call.MESSAGE_TYPE, 123456, 'com.myapp.error1')
exc = session._exception_from_message(emsg)
self.assertIsInstance(exc, AppError1)
self.assertEqual(exc.args, ())
emsg = message.Error(message.Call.MESSAGE_TYPE, 123456, 'com.myapp.error2')
exc = session._exception_from_message(emsg)
self.assertIsInstance(exc, AppError2)
self.assertEqual(exc.args, ())
# map undefined error to (generic) exception
emsg = message.Error(message.Call.MESSAGE_TYPE, 123456, 'com.myapp.error3')
exc = session._exception_from_message(emsg)
self.assertIsInstance(exc, exception.ApplicationError)
self.assertEqual(exc.error, 'com.myapp.error3')
self.assertEqual(exc.args, ())
self.assertEqual(exc.kwargs, {})
emsg = message.Error(message.Call.MESSAGE_TYPE, 123456, 'com.myapp.error3', args=[1, 2, 'hello'])
exc = session._exception_from_message(emsg)
self.assertIsInstance(exc, exception.ApplicationError)
self.assertEqual(exc.error, 'com.myapp.error3')
self.assertEqual(exc.args, (1, 2, 'hello'))
self.assertEqual(exc.kwargs, {})
emsg = message.Error(message.Call.MESSAGE_TYPE, 123456, 'com.myapp.error3', args=[1, 2, 'hello'], kwargs={'foo': 23, 'bar': 'baz'})
exc = session._exception_from_message(emsg)
self.assertIsInstance(exc, exception.ApplicationError)
self.assertEqual(exc.error, 'com.myapp.error3')
self.assertEqual(exc.args, (1, 2, 'hello'))
self.assertEqual(exc.kwargs, {'foo': 23, 'bar': 'baz'})
[docs] def test_message_from_exception(self):
session = protocol.BaseSession()
@wamp.error("com.myapp.error1")
class AppError1(Exception):
pass
@wamp.error("com.myapp.error2")
class AppError2(Exception):
pass
session.define(AppError1)
session.define(AppError2)
exc = AppError1()
msg = session._message_from_exception(message.Call.MESSAGE_TYPE, 123456, exc)
self.assertEqual(msg.marshal(), [message.Error.MESSAGE_TYPE, message.Call.MESSAGE_TYPE, 123456, {}, "com.myapp.error1"])