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# Copyright 2012 OpenStack LLC.
# 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 httplib
import socket
import StringIO
import unittest
import mox
from glanceclient import exc
from glanceclient.common import http
from tests import utils
class TestClient(unittest.TestCase):
def test_connection_refused(self):
"""
Should receive a CommunicationError if connection refused.
And the error should list the host and port that refused the
connection
"""
endpoint = 'http://example.com:9292'
client = http.HTTPClient(endpoint, token=u'abc123')
m = mox.Mox()
m.StubOutWithMock(httplib.HTTPConnection, 'request')
httplib.HTTPConnection.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
headers=mox.IgnoreArg(),
).AndRaise(socket.error())
m.ReplayAll()
try:
client.json_request('GET', '/v1/images/detail?limit=20')
#NOTE(alaski) We expect exc.CommunicationError to be raised
# so we should never reach this point. try/except is used here
# rather than assertRaises() so that we can check the body of
# the exception.
self.fail('An exception should have bypassed this line.')
except exc.CommunicationError, comm_err:
fail_msg = ("Exception message '%s' should contain '%s'" %
(comm_err.message, endpoint))
self.assertTrue(endpoint in comm_err.message, fail_msg)
finally:
m.UnsetStubs()
class TestResponseBodyIterator(unittest.TestCase):
def test_iter_default_chunk_size_64k(self):
resp = utils.FakeResponse({}, StringIO.StringIO('X' * 98304))
iterator = http.ResponseBodyIterator(resp)
chunks = list(iterator)
self.assertEqual(chunks, ['X' * 65536, 'X' * 32768])
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