/usr/lib/python2.7/dist-packages/oslo_messaging/tests/rpc/test_dispatcher.py is in python-oslo.messaging 4.6.1-2ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | # Copyright 2013 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import testscenarios
import oslo_messaging
from oslo_messaging import serializer as msg_serializer
from oslo_messaging.tests import utils as test_utils
from six.moves import mock
load_tests = testscenarios.load_tests_apply_scenarios
class _FakeEndpoint(object):
def __init__(self, target=None):
self.target = target
def foo(self, ctxt, **kwargs):
pass
def bar(self, ctxt, **kwargs):
pass
class TestDispatcher(test_utils.BaseTestCase):
scenarios = [
('no_endpoints',
dict(endpoints=[],
dispatch_to=None,
ctxt={}, msg=dict(method='foo'),
success=False, ex=oslo_messaging.UnsupportedVersion)),
('default_target',
dict(endpoints=[{}],
dispatch_to=dict(endpoint=0, method='foo'),
ctxt={}, msg=dict(method='foo'),
success=True, ex=None)),
('default_target_ctxt_and_args',
dict(endpoints=[{}],
dispatch_to=dict(endpoint=0, method='bar'),
ctxt=dict(user='bob'), msg=dict(method='bar',
args=dict(blaa=True)),
success=True, ex=None)),
('default_target_namespace',
dict(endpoints=[{}],
dispatch_to=dict(endpoint=0, method='foo'),
ctxt={}, msg=dict(method='foo', namespace=None),
success=True, ex=None)),
('default_target_version',
dict(endpoints=[{}],
dispatch_to=dict(endpoint=0, method='foo'),
ctxt={}, msg=dict(method='foo', version='1.0'),
success=True, ex=None)),
('default_target_no_such_method',
dict(endpoints=[{}],
dispatch_to=None,
ctxt={}, msg=dict(method='foobar'),
success=False, ex=oslo_messaging.NoSuchMethod)),
('namespace',
dict(endpoints=[{}, dict(namespace='testns')],
dispatch_to=dict(endpoint=1, method='foo'),
ctxt={}, msg=dict(method='foo', namespace='testns'),
success=True, ex=None)),
('namespace_mismatch',
dict(endpoints=[{}, dict(namespace='testns')],
dispatch_to=None,
ctxt={}, msg=dict(method='foo', namespace='nstest'),
success=False, ex=oslo_messaging.UnsupportedVersion)),
('version',
dict(endpoints=[dict(version='1.5'), dict(version='3.4')],
dispatch_to=dict(endpoint=1, method='foo'),
ctxt={}, msg=dict(method='foo', version='3.2'),
success=True, ex=None)),
('version_mismatch',
dict(endpoints=[dict(version='1.5'), dict(version='3.0')],
dispatch_to=None,
ctxt={}, msg=dict(method='foo', version='3.2'),
success=False, ex=oslo_messaging.UnsupportedVersion)),
('message_in_null_namespace_with_multiple_namespaces',
dict(endpoints=[dict(namespace='testns',
legacy_namespaces=[None])],
dispatch_to=dict(endpoint=0, method='foo'),
ctxt={}, msg=dict(method='foo', namespace=None),
success=True, ex=None)),
('message_in_wrong_namespace_with_multiple_namespaces',
dict(endpoints=[dict(namespace='testns',
legacy_namespaces=['second', None])],
dispatch_to=None,
ctxt={}, msg=dict(method='foo', namespace='wrong'),
success=False, ex=oslo_messaging.UnsupportedVersion)),
]
def test_dispatcher(self):
endpoints = [mock.Mock(spec=_FakeEndpoint,
target=oslo_messaging.Target(**e))
for e in self.endpoints]
serializer = None
target = oslo_messaging.Target()
dispatcher = oslo_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, oslo_messaging.NoSuchMethod):
self.assertEqual(self.msg.get('method'), ex.method)
elif isinstance(ex, oslo_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
callback = dispatcher([incoming])
callback.run()
callback.done()
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)
class TestSerializer(test_utils.BaseTestCase):
scenarios = [
('no_args_or_retval',
dict(ctxt={}, dctxt={}, args={}, retval=None)),
('args_and_retval',
dict(ctxt=dict(user='bob'),
dctxt=dict(user='alice'),
args=dict(a='a', b='b', c='c'),
retval='d')),
]
def test_serializer(self):
endpoint = _FakeEndpoint()
serializer = msg_serializer.NoOpSerializer()
target = oslo_messaging.Target()
dispatcher = oslo_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)
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