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# Copyright (C) 2015 Yahoo! Inc. All Rights Reserved.
#
# 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 datetime
import itertools
from xmlrpc import client as xmlrpclib
import netaddr
from oslotest import base as test_base
from pytz import timezone
from oslo_serialization import msgpackutils
from oslo_utils import uuidutils
_TZ_FMT = '%Y-%m-%d %H:%M:%S %Z%z'
class Color(object):
def __init__(self, r, g, b):
self.r = r
self.g = g
self.b = b
class ColorHandler(object):
handles = (Color,)
identity = (
msgpackutils.HandlerRegistry.non_reserved_extension_range.min_value + 1
)
@staticmethod
def serialize(obj):
blob = '%s, %s, %s' % (obj.r, obj.g, obj.b)
blob = blob.encode('ascii')
return blob
@staticmethod
def deserialize(data):
chunks = [int(c.strip()) for c in data.split(b",")]
return Color(chunks[0], chunks[1], chunks[2])
class MySpecialSetHandler(object):
handles = (set,)
identity = msgpackutils.SetHandler.identity
def _dumps_loads(obj):
obj = msgpackutils.dumps(obj)
return msgpackutils.loads(obj)
class MsgPackUtilsTest(test_base.BaseTestCase):
def test_list(self):
self.assertEqual([1, 2, 3], _dumps_loads([1, 2, 3]))
def test_empty_list(self):
self.assertEqual([], _dumps_loads([]))
def test_tuple(self):
# Seems like we do lose whether it was a tuple or not...
#
# Maybe fixed someday:
#
# https://github.com/msgpack/msgpack-python/issues/98
self.assertEqual([1, 2, 3], _dumps_loads((1, 2, 3)))
def test_dict(self):
self.assertEqual(dict(a=1, b=2, c=3),
_dumps_loads(dict(a=1, b=2, c=3)))
def test_empty_dict(self):
self.assertEqual({}, _dumps_loads({}))
def test_complex_dict(self):
src = {
'now': datetime.datetime(1920, 2, 3, 4, 5, 6, 7),
'later': datetime.datetime(1921, 2, 3, 4, 5, 6, 9),
'a': 1,
'b': 2.0,
'c': [],
'd': set([1, 2, 3]),
'zzz': uuidutils.generate_uuid(),
'yyy': 'yyy',
'ddd': b'bbb',
'today': datetime.date.today(),
}
self.assertEqual(src, _dumps_loads(src))
def test_itercount(self):
it = itertools.count(1)
next(it)
next(it)
it2 = _dumps_loads(it)
self.assertEqual(next(it), next(it2))
it = itertools.count(0)
it2 = _dumps_loads(it)
self.assertEqual(next(it), next(it2))
def test_itercount_step(self):
it = itertools.count(1, 3)
it2 = _dumps_loads(it)
self.assertEqual(next(it), next(it2))
def test_set(self):
self.assertEqual(set([1, 2]), _dumps_loads(set([1, 2])))
def test_empty_set(self):
self.assertEqual(set([]), _dumps_loads(set([])))
def test_frozenset(self):
self.assertEqual(frozenset([1, 2]), _dumps_loads(frozenset([1, 2])))
def test_empty_frozenset(self):
self.assertEqual(frozenset([]), _dumps_loads(frozenset([])))
def test_datetime_preserve(self):
x = datetime.datetime(1920, 2, 3, 4, 5, 6, 7)
self.assertEqual(x, _dumps_loads(x))
def test_datetime(self):
x = xmlrpclib.DateTime()
x.decode("19710203T04:05:06")
self.assertEqual(x, _dumps_loads(x))
def test_ipaddr(self):
thing = {'ip_addr': netaddr.IPAddress('1.2.3.4')}
self.assertEqual(thing, _dumps_loads(thing))
def test_today(self):
today = datetime.date.today()
self.assertEqual(today, _dumps_loads(today))
def test_datetime_tz_clone(self):
eastern = timezone('US/Eastern')
now = datetime.datetime.now()
e_dt = eastern.localize(now)
e_dt2 = _dumps_loads(e_dt)
self.assertEqual(e_dt, e_dt2)
self.assertEqual(e_dt.strftime(_TZ_FMT), e_dt2.strftime(_TZ_FMT))
def test_datetime_tz_different(self):
eastern = timezone('US/Eastern')
pacific = timezone('US/Pacific')
now = datetime.datetime.now()
e_dt = eastern.localize(now)
p_dt = pacific.localize(now)
self.assertNotEqual(e_dt, p_dt)
self.assertNotEqual(e_dt.strftime(_TZ_FMT), p_dt.strftime(_TZ_FMT))
e_dt2 = _dumps_loads(e_dt)
p_dt2 = _dumps_loads(p_dt)
self.assertNotEqual(e_dt2, p_dt2)
self.assertNotEqual(e_dt2.strftime(_TZ_FMT), p_dt2.strftime(_TZ_FMT))
self.assertEqual(e_dt, e_dt2)
self.assertEqual(p_dt, p_dt2)
def test_copy_then_register(self):
registry = msgpackutils.default_registry
self.assertRaises(ValueError,
registry.register, MySpecialSetHandler(),
reserved=True, override=True)
registry = registry.copy(unfreeze=True)
registry.register(MySpecialSetHandler(),
reserved=True, override=True)
h = registry.match(set())
self.assertIsInstance(h, MySpecialSetHandler)
def test_bad_register(self):
registry = msgpackutils.default_registry
self.assertRaises(ValueError,
registry.register, MySpecialSetHandler(),
reserved=True, override=True)
self.assertRaises(ValueError,
registry.register, MySpecialSetHandler())
registry = registry.copy(unfreeze=True)
registry.register(ColorHandler())
self.assertRaises(ValueError,
registry.register, ColorHandler())
def test_custom_register(self):
registry = msgpackutils.default_registry.copy(unfreeze=True)
registry.register(ColorHandler())
c = Color(255, 254, 253)
c_b = msgpackutils.dumps(c, registry=registry)
c = msgpackutils.loads(c_b, registry=registry)
self.assertEqual(255, c.r)
self.assertEqual(254, c.g)
self.assertEqual(253, c.b)
def test_object(self):
self.assertRaises(ValueError, msgpackutils.dumps, object())
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