Files
python-glanceclient/tests/test_http.py
AmalaBasha dbb242b776 Replace old httpclient with requests
This review implements blueprint python-request and replaces the old
http client implementation in favor of a new one based on
python-requests.

Major changes:
* raw_request and json_request removed since everything is now being
  handled by the same method "_request"
* New methods that match HTTP's methods were added:
    - get
    - put
    - post
    - head
    - patch
    - delete
* Content-Type is now being "inferred" based on the data being sent:
    - if it is file-like object it chunks the request
    - if it is a python type not instance of basestring then it'll try
      to serialize it to json
    - Every other case will keep the incoming content-type and will send
      the data as is.
* Glanceclient's HTTPSConnection implementation will be used if
  no-compression flag is set to True.

Co-Author:  Flavio Percoco<flaper87@gmail.com>
Change-Id: I09f70eee3e2777f52ce040296015d41649c2586a
2014-07-10 13:22:05 +05:30

251 lines
9.0 KiB
Python

# Copyright 2012 OpenStack Foundation
# 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 json
from mox3 import mox
import requests
import six
from six.moves.urllib import parse
import testtools
import types
import glanceclient
from glanceclient.common import http
from glanceclient.common import https
from glanceclient import exc
from tests import utils
class TestClient(testtools.TestCase):
def setUp(self):
super(TestClient, self).setUp()
self.mock = mox.Mox()
self.mock.StubOutWithMock(requests.Session, 'request')
self.endpoint = 'http://example.com:9292'
self.client = http.HTTPClient(self.endpoint, token=u'abc123')
def tearDown(self):
super(TestClient, self).tearDown()
self.mock.UnsetStubs()
def test_identity_headers_and_token(self):
identity_headers = {
'X-Auth-Token': 'auth_token',
'X-User-Id': 'user',
'X-Tenant-Id': 'tenant',
'X-Roles': 'roles',
'X-Identity-Status': 'Confirmed',
'X-Service-Catalog': 'service_catalog',
}
#with token
kwargs = {'token': u'fake-token',
'identity_headers': identity_headers}
http_client_object = http.HTTPClient(self.endpoint, **kwargs)
self.assertEqual('auth_token', http_client_object.auth_token)
self.assertTrue(http_client_object.identity_headers.
get('X-Auth-Token') is None)
def test_identity_headers_and_no_token_in_header(self):
identity_headers = {
'X-User-Id': 'user',
'X-Tenant-Id': 'tenant',
'X-Roles': 'roles',
'X-Identity-Status': 'Confirmed',
'X-Service-Catalog': 'service_catalog',
}
#without X-Auth-Token in identity headers
kwargs = {'token': u'fake-token',
'identity_headers': identity_headers}
http_client_object = http.HTTPClient(self.endpoint, **kwargs)
self.assertEqual(u'fake-token', http_client_object.auth_token)
self.assertTrue(http_client_object.identity_headers.
get('X-Auth-Token') is None)
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
"""
requests.Session.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
data=mox.IgnoreArg(),
headers=mox.IgnoreArg(),
stream=mox.IgnoreArg(),
).AndRaise(requests.exceptions.ConnectionError())
self.mock.ReplayAll()
try:
self.client.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 glanceclient.exc.CommunicationError as comm_err:
fail_msg = ("Exception message '%s' should contain '%s'" %
(comm_err.message, self.endpoint))
self.assertTrue(self.endpoint in comm_err.message, fail_msg)
def test_http_encoding(self):
# Lets fake the response
# returned by requests
response = 'Ok'
headers = {"Content-Type": "text/plain"}
fake = utils.FakeResponse(headers, six.StringIO(response))
requests.Session.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
data=mox.IgnoreArg(),
stream=mox.IgnoreArg(),
headers=mox.IgnoreArg()).AndReturn(fake)
self.mock.ReplayAll()
headers = {"test": u'ni\xf1o'}
resp, body = self.client.get('/v1/images/detail', headers=headers)
self.assertEqual(resp, fake)
def test_headers_encoding(self):
value = u'ni\xf1o'
headers = {"test": value}
encoded = self.client.encode_headers(headers)
if six.PY2:
self.assertEqual("ni\xc3\xb1o", encoded["test"])
else:
self.assertEqual(value, encoded["test"])
def test_raw_request(self):
" Verify the path being used for HTTP requests reflects accurately. "
headers = {"Content-Type": "text/plain"}
response = 'Ok'
fake = utils.FakeResponse({}, six.StringIO(response))
requests.Session.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
data=mox.IgnoreArg(),
stream=mox.IgnoreArg(),
headers=mox.IgnoreArg()).AndReturn(fake)
self.mock.ReplayAll()
resp, body = self.client.get('/v1/images/detail', headers=headers)
self.assertEqual(resp, fake)
def test_parse_endpoint(self):
endpoint = 'http://example.com:9292'
test_client = http.HTTPClient(endpoint, token=u'adc123')
actual = test_client.parse_endpoint(endpoint)
expected = parse.SplitResult(scheme='http',
netloc='example.com:9292', path='',
query='', fragment='')
self.assertEqual(expected, actual)
def test_get_connections_kwargs_http(self):
endpoint = 'http://example.com:9292'
test_client = http.HTTPClient(endpoint, token=u'adc123')
self.assertEqual(test_client.timeout, 600.0)
def test_http_chunked_request(self):
# Lets fake the response
# returned by requests
response = "Ok"
data = six.StringIO(response)
fake = utils.FakeResponse({}, data)
requests.Session.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
stream=mox.IgnoreArg(),
data=mox.IsA(types.GeneratorType),
headers=mox.IgnoreArg()).AndReturn(fake)
self.mock.ReplayAll()
headers = {"test": u'chunked_request'}
resp, body = self.client.post('/v1/images/',
headers=headers, data=data)
self.assertEqual(resp, fake)
def test_http_json(self):
data = {"test": "json_request"}
fake = utils.FakeResponse({}, "OK")
def test_json(passed_data):
"""
This function tests whether the data
being passed to request's method is
a valid json or not.
This function will be called by pymox
:params passed_data: The data being
passed to requests.Session.request.
"""
if not isinstance(passed_data, six.string_types):
return False
try:
passed_data = json.loads(passed_data)
return data == passed_data
except (TypeError, ValueError):
return False
requests.Session.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
stream=mox.IgnoreArg(),
data=mox.Func(test_json),
headers=mox.IgnoreArg()).AndReturn(fake)
self.mock.ReplayAll()
headers = {"test": u'chunked_request'}
resp, body = self.client.post('/v1/images/',
headers=headers,
data=data)
self.assertEqual(resp, fake)
def test_http_chunked_response(self):
headers = {"Content-Type": "application/octet-stream"}
data = "TEST"
fake = utils.FakeResponse(headers, six.StringIO(data))
requests.Session.request(
mox.IgnoreArg(),
mox.IgnoreArg(),
stream=mox.IgnoreArg(),
data=mox.IgnoreArg(),
headers=mox.IgnoreArg()).AndReturn(fake)
self.mock.ReplayAll()
headers = {"test": u'chunked_request'}
resp, body = self.client.get('/v1/images/')
self.assertTrue(isinstance(body, types.GeneratorType))
self.assertEqual([data], list(body))
class TestVerifiedHTTPSConnection(testtools.TestCase):
"""Test fixture for glanceclient.common.http.VerifiedHTTPSConnection."""
def test_setcontext_unable_to_load_cacert(self):
"""Add this UT case with Bug#1265730."""
self.assertRaises(exc.SSLConfigurationError,
https.VerifiedHTTPSConnection,
"127.0.0.1",
None,
None,
None,
"gx_cacert",
None,
False,
True)