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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack Foundation
#
# 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 urlparse
from cinderclient import exceptions as cinder_exception
from nova import context
from nova import exception
from nova.volume import cinder
from nova import test
def _stub_volume(**kwargs):
volume = {
'display_name': None,
'display_description': None,
"attachments": [],
"availability_zone": "cinder",
"created_at": "2012-09-10T00:00:00.000000",
"id": '00000000-0000-0000-0000-000000000000',
"metadata": {},
"size": 1,
"snapshot_id": None,
"status": "available",
"volume_type": "None",
}
volume.update(kwargs)
return volume
_image_metadata = {
'kernel_id': 'fake',
'ramdisk_id': 'fake'
}
class FakeHTTPClient(cinder.cinder_client.client.HTTPClient):
def _cs_request(self, url, method, **kwargs):
# Check that certain things are called correctly
if method in ['GET', 'DELETE']:
assert 'body' not in kwargs
elif method == 'PUT':
assert 'body' in kwargs
# Call the method
args = urlparse.parse_qsl(urlparse.urlparse(url)[4])
kwargs.update(args)
munged_url = url.rsplit('?', 1)[0]
munged_url = munged_url.strip('/').replace('/', '_').replace('.', '_')
munged_url = munged_url.replace('-', '_')
callback = "%s_%s" % (method.lower(), munged_url)
if not hasattr(self, callback):
raise AssertionError('Called unknown API method: %s %s, '
'expected fakes method name: %s' %
(method, url, callback))
# Note the call
self.callstack.append((method, url, kwargs.get('body', None)))
status, body = getattr(self, callback)(**kwargs)
if hasattr(status, 'items'):
return status, body
else:
return {"status": status}, body
def get_volumes_1234(self, **kw):
volume = {'volume': _stub_volume(id='1234')}
return (200, volume)
def get_volumes_nonexisting(self, **kw):
raise cinder_exception.NotFound(code=404, message='Resource not found')
def get_volumes_5678(self, **kw):
"""Volume with image metadata."""
volume = {'volume': _stub_volume(id='1234',
volume_image_metadata=_image_metadata)
}
return (200, volume)
class FakeCinderClient(cinder.cinder_client.Client):
def __init__(self, username, password, project_id=None, auth_url=None,
insecure=False, retries=None, cacert=None):
super(FakeCinderClient, self).__init__(username, password,
project_id=project_id,
auth_url=auth_url,
insecure=insecure,
retries=retries,
cacert=cacert)
self.client = FakeHTTPClient(username, password, project_id, auth_url,
insecure=insecure, retries=retries,
cacert=cacert)
# keep a ref to the clients callstack for factory's assert_called
self.callstack = self.client.callstack = []
class FakeClientFactory(object):
"""Keep a ref to the FakeClient since volume.api.cinder throws it away."""
def __call__(self, *args, **kwargs):
self.client = FakeCinderClient(*args, **kwargs)
return self.client
def assert_called(self, method, url, body=None, pos=-1):
expected = (method, url)
called = self.client.callstack[pos][0:2]
assert self.client.callstack, ("Expected %s %s but no calls "
"were made." % expected)
assert expected == called, 'Expected %s %s; got %s %s' % (expected +
called)
if body is not None:
assert self.client.callstack[pos][2] == body
class CinderTestCase(test.TestCase):
"""Test case for cinder volume api."""
def setUp(self):
super(CinderTestCase, self).setUp()
self.fake_client_factory = FakeClientFactory()
self.stubs.Set(cinder.cinder_client, "Client",
self.fake_client_factory)
self.api = cinder.API()
catalog = [{
"type": "volume",
"name": "cinder",
"endpoints": [{"publicURL": "http://localhost:8776/v1/project_id"}]
}]
self.context = context.RequestContext('username', 'project_id',
service_catalog=catalog)
def assert_called(self, *args, **kwargs):
self.fake_client_factory.assert_called(*args, **kwargs)
def test_context_with_catalog(self):
self.api.get(self.context, '1234')
self.assert_called('GET', '/volumes/1234')
self.assertEquals(
self.fake_client_factory.client.client.management_url,
'http://localhost:8776/v1/project_id')
def test_cinder_endpoint_template(self):
self.flags(
cinder_endpoint_template='http://other_host:8776/v1/%(project_id)s'
)
self.api.get(self.context, '1234')
self.assert_called('GET', '/volumes/1234')
self.assertEquals(
self.fake_client_factory.client.client.management_url,
'http://other_host:8776/v1/project_id')
def test_get_non_existing_volume(self):
self.assertRaises(exception.VolumeNotFound, self.api.get, self.context,
'nonexisting')
def test_volume_with_image_metadata(self):
volume = self.api.get(self.context, '5678')
self.assert_called('GET', '/volumes/5678')
self.assertTrue('volume_image_metadata' in volume)
self.assertEqual(volume['volume_image_metadata'], _image_metadata)
def test_cinder_api_insecure(self):
# The True/False negation is awkward, but better for the client
# to pass us insecure=True and we check verify_cert == False
self.flags(cinder_api_insecure=True)
self.api.get(self.context, '1234')
self.assert_called('GET', '/volumes/1234')
self.assertEquals(
self.fake_client_factory.client.client.verify_cert, False)
def test_cinder_api_cacert_file(self):
cacert = "/etc/ssl/certs/ca-certificates.crt"
self.flags(cinder_ca_certificates_file=cacert)
self.api.get(self.context, '1234')
self.assert_called('GET', '/volumes/1234')
self.assertEquals(
self.fake_client_factory.client.client.verify_cert, cacert)
def test_cinder_http_retries(self):
retries = 42
self.flags(cinder_http_retries=retries)
self.api.get(self.context, '1234')
self.assert_called('GET', '/volumes/1234')
self.assertEquals(
self.fake_client_factory.client.client.retries, retries)
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