def test_dispatcher(self):
endpoints = []
for e in self.endpoints:
target = messaging.Target(**e) if e else None
endpoints.append(_FakeEndpoint(target))
serializer = None
dispatcher = messaging.RPCDispatcher(endpoints, serializer)
if self.dispatch_to is not None:
endpoint = endpoints[self.dispatch_to['endpoint']]
method = self.dispatch_to['method']
self.mox.StubOutWithMock(endpoint, method)
method = getattr(endpoint, method)
method(self.ctxt, **self.msg.get('args', {}))
self.mox.ReplayAll()
try:
dispatcher(self.ctxt, self.msg)
except Exception as ex:
self.assertFalse(self.success, ex)
self.assertIsNotNone(self.ex, ex)
self.assertIsInstance(ex, self.ex, ex)
if isinstance(ex, messaging.NoSuchMethod):
self.assertEqual(ex.method, self.msg.get('method'))
elif isinstance(ex, messaging.UnsupportedVersion):
self.assertEqual(ex.version, self.msg.get('version', '1.0'))
else:
self.assertTrue(self.success)
def test_serializer(self):
endpoint = _FakeEndpoint()
serializer = msg_serializer.NoOpSerializer()
target = messaging.Target()
dispatcher = messaging.RPCDispatcher(target, [endpoint], serializer)
self.mox.StubOutWithMock(endpoint, 'foo')
args = dict([(k, 'd' + v) for k, v in self.args.items()])
endpoint.foo(self.dctxt, **args).AndReturn(self.retval)
self.mox.StubOutWithMock(serializer, 'serialize_entity')
self.mox.StubOutWithMock(serializer, 'deserialize_entity')
self.mox.StubOutWithMock(serializer, 'deserialize_context')
serializer.deserialize_context(self.ctxt).AndReturn(self.dctxt)
for arg in self.args:
serializer.deserialize_entity(self.dctxt, arg).AndReturn('d' + arg)
serializer.serialize_entity(self.dctxt, self.retval).\
AndReturn('s' + self.retval if self.retval else None)
self.mox.ReplayAll()
retval = dispatcher._dispatch(self.ctxt, dict(method='foo',
args=self.args))
if self.retval is not None:
self.assertEqual('s' + self.retval, retval)
def test_dispatcher(self):
endpoints = [
mock.Mock(spec=_FakeEndpoint, target=messaging.Target(**e))
for e in self.endpoints
]
serializer = None
target = messaging.Target()
dispatcher = messaging.RPCDispatcher(target, endpoints, serializer)
def check_reply(reply=None, failure=None, log_failure=True):
if self.ex and failure is not None:
ex = failure[1]
self.assertFalse(self.success, ex)
self.assertIsNotNone(self.ex, ex)
self.assertIsInstance(ex, self.ex, ex)
if isinstance(ex, messaging.NoSuchMethod):
self.assertEqual(self.msg.get('method'), ex.method)
elif isinstance(ex, messaging.UnsupportedVersion):
self.assertEqual(self.msg.get('version', '1.0'),
ex.version)
if ex.method:
self.assertEqual(self.msg.get('method'), ex.method)
else:
self.assertTrue(self.success, failure)
self.assertIsNone(failure)
incoming = mock.Mock(ctxt=self.ctxt, message=self.msg)
incoming.reply.side_effect = check_reply
with dispatcher(incoming) as callback:
callback()
for n, endpoint in enumerate(endpoints):
for method_name in ['foo', 'bar']:
method = getattr(endpoint, method_name)
if self.dispatch_to and n == self.dispatch_to['endpoint'] and \
method_name == self.dispatch_to['method']:
method.assert_called_once_with(self.ctxt,
**self.msg.get('args', {}))
else:
self.assertEqual(0, method.call_count)
self.assertEqual(1, incoming.reply.call_count)