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# Copyright 2015 Rackspace 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 io
from oslotest import base
from oslo_privsep import comm
class BufSock:
def __init__(self):
self.readpos = 0
self.buf = io.BytesIO()
def recv(self, bufsize):
if self.buf.closed:
return b''
self.buf.seek(self.readpos, 0)
data = self.buf.read(bufsize)
self.readpos += len(data)
return data
def sendall(self, data):
self.buf.seek(0, 2)
self.buf.write(data)
def shutdown(self, _flag):
self.buf.close()
class TestSerialization(base.BaseTestCase):
def setUp(self):
super().setUp()
sock = BufSock()
self.input = comm.Serializer(sock)
self.output = iter(comm.Deserializer(sock))
def send(self, data):
self.input.send(data)
return next(self.output)
def assertSendable(self, value):
self.assertEqual(value, self.send(value))
def test_none(self):
self.assertSendable(None)
def test_bool(self):
self.assertSendable(True)
self.assertSendable(False)
def test_int(self):
self.assertSendable(42)
self.assertSendable(-84)
def test_bytes(self):
data = b'\x00\x01\x02\xfd\xfe\xff'
self.assertSendable(data)
def test_unicode(self):
data = '\u4e09\u9df9\udc82'
self.assertSendable(data)
def test_tuple(self):
self.assertSendable((1, 'foo'))
def test_list(self):
# NB! currently lists get converted to tuples by serialization.
self.assertEqual((1, 'foo'), self.send([1, 'foo']))
def test_dict(self):
self.assertSendable(
{
'a': 'b',
1: 2,
None: None,
(1, 2): (3, 4),
}
)
def test_badobj(self):
class UnknownClass:
pass
obj = UnknownClass()
self.assertRaises(TypeError, self.send, obj)
def test_eof(self):
self.input.close()
self.assertRaises(StopIteration, next, self.output)
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