From: David-Sarah Hopwood Date: Thu, 14 Feb 2013 22:19:34 +0000 (+0000) Subject: test_storage.py: refactor OpenStackCloudBackend to make it easier to add new tests. X-Git-Url: https://git.rkrishnan.org/nxhtml.html?a=commitdiff_plain;h=ae0ab64365b4e975759fb27681b43c0f1f6abfbf;p=tahoe-lafs%2Ftahoe-lafs.git test_storage.py: refactor OpenStackCloudBackend to make it easier to add new tests. Signed-off-by: David-Sarah Hopwood --- diff --git a/src/allmydata/test/test_storage.py b/src/allmydata/test/test_storage.py index 4c14cfac..57cb901c 100644 --- a/src/allmydata/test/test_storage.py +++ b/src/allmydata/test/test_storage.py @@ -1,6 +1,7 @@ import time, os.path, platform, re, simplejson, struct, itertools from collections import deque +from cStringIO import StringIO import mock from twisted.trial import unittest @@ -8,13 +9,17 @@ from twisted.trial import unittest from twisted.internet import defer from twisted.internet.task import Clock from allmydata.util.deferredutil import for_items +from twisted.web.iweb import IBodyProducer, UNKNOWN_LENGTH from twisted.web.http_headers import Headers +from twisted.protocols.ftp import FileConsumer +from twisted.web.client import ResponseDone from twisted.python.failure import Failure from foolscap.logging.log import OPERATIONAL, INFREQUENT, WEIRD from foolscap.logging.web import LogEvent from allmydata import interfaces +from allmydata.util.assertutil import precondition from allmydata.util import fileutil, hashutil, base32, time_format from allmydata.storage.server import StorageServer from allmydata.storage.backends.null.null_backend import NullBackend @@ -418,35 +423,64 @@ class OpenStackCloudBackend(ServiceParentMixin, WorkdirMixin, unittest.TestCase) CDN_MANAGEMENT_URL = "cdn_management_url" AUTH_TOKEN = "auth_token" - def test_authentication_client(self): - mock_response_headers = { - 'X-Storage-Url': [self.STORAGE_URL], - 'X-CDN-Management-Url': [self.CDN_MANAGEMENT_URL], - 'X-Auth-Token': [self.AUTH_TOKEN], - } + def _patch_agent(self): + self._requests = {} + class MockResponse(object): - def __init__(mock_self): - mock_self.headers = Headers(mock_response_headers) - mock_self.code = 204 - mock_self.phrase = "No Content" + def __init__(mock_self, response_code, response_phrase, response_headers, response_body): + mock_self.code = response_code + mock_self.phrase = response_phrase + mock_self.headers = Headers(response_headers) + mock_self._body = response_body + + def deliverBody(mock_self, protocol): + protocol.dataReceived(mock_self._body) + protocol.connectionLost(Failure(ResponseDone())) class MockAgent(object): def __init__(mock_self, reactor): pass - def request(mock_self, method, url, headers, foo): - self.failUnlessEqual(method, 'GET') - self.failUnlessEqual(url, self.AUTH_SERVICE_URL) + + def request(mock_self, method, url, headers, bodyProducer=None): + self.failUnlessIn((method, url), self._requests) + (expected_headers, expected_body, + response_code, response_phrase, response_headers, response_body) = self._requests[(method, url)] + self.failUnlessIsInstance(headers, Headers) - self.failUnlessEqual(headers.getRawHeaders('X-Auth-User'), [self.USERNAME]) - self.failUnlessEqual(headers.getRawHeaders('X-Auth-Key'), [self.API_KEY]) - return MockResponse() + for (key, values) in expected_headers.iteritems(): + self.failUnlessEqual(headers.getRawHeaders(key), values) + + d = defer.succeed(None) + if bodyProducer is None: + self.failUnlessEqual(expected_body, "") + else: + self.failUnless(IBodyProducer.providedBy(bodyProducer)) + self.failUnlessIn(bodyProducer.length, (len(expected_body), UNKNOWN_LENGTH)) + body = StringIO() + d = bodyProducer.startProducing(FileConsumer(body)) + d.addCallback(lambda ign: self.failUnlessEqual(body.getvalue(), expected_body)) + d.addCallback(lambda ign: MockResponse(response_code, response_phrase, response_headers, response_body)) + return d self.patch(openstack_container, 'Agent', MockAgent) - workdir = self.workdir("test_authentication_client") - privatedir = os.path.join(workdir, "private") - fileutil.make_dirs(privatedir) - fileutil.write(os.path.join(privatedir, "openstack_api_key"), self.API_KEY) + def _set_request(self, method, url, expected_headers, expected_body, + response_code, response_phrase, response_headers, response_body): + precondition(isinstance(expected_headers, dict), expected_headers) + precondition(isinstance(response_headers, dict), response_headers) + self._requests[(method, url)] = (expected_headers, expected_body, + response_code, response_phrase, response_headers, response_body) + + def _make_server(self, name): + self._set_request('GET', self.AUTH_SERVICE_URL, { + 'X-Auth-User': [self.USERNAME], + 'X-Auth-Key': [self.API_KEY], + }, "", + 204, "No Content", { + 'X-Storage-Url': [self.STORAGE_URL], + 'X-CDN-Management-Url': [self.CDN_MANAGEMENT_URL], + 'X-Auth-Token': [self.AUTH_TOKEN], + }, "") storage_config = { 'openstack.provider': self.PROVIDER, @@ -464,26 +498,38 @@ class OpenStackCloudBackend(ServiceParentMixin, WorkdirMixin, unittest.TestCase) def get_or_create_private_config(mock_self, filename): return fileutil.read(os.path.join(privatedir, filename)) - config = MockConfig() - clock = Clock() - container = openstack_container.configure_openstack_container(workdir, config) - backend = CloudBackend(container) - server = StorageServer("\x00" * 20, backend, workdir, - stats_provider=FakeStatsProvider(), clock=clock) - server.setServiceParent(self.sparent) - self.failUnless(server.backend._container is container, (server.backend._container, container)) + self.workdir = self.workdir(name) + privatedir = os.path.join(self.workdir, "private") + fileutil.make_dirs(privatedir) + fileutil.write(os.path.join(privatedir, "openstack_api_key"), self.API_KEY) + + self.config = MockConfig() + self.clock = Clock() + self.container = openstack_container.configure_openstack_container(self.workdir, self.config) + backend = CloudBackend(self.container) + self.server = StorageServer("\x00" * 20, backend, self.workdir, + stats_provider=FakeStatsProvider(), clock=self.clock) + self.server.setServiceParent(self.sparent) + self.failUnless(self.server.backend._container is self.container, + (self.server.backend._container, self.container)) + + def _shutdown(self, res): + # avoid unclean reactor error + self.container._auth_client.shutdown() + return res + + + def test_authentication_client(self): + self._patch_agent() + self._make_server("test_authentication_client") - d = container._auth_client.get_auth_info() + d = self.container._auth_client.get_auth_info() def _check(auth_info): self.failUnlessEqual(auth_info.storage_url, self.STORAGE_URL) self.failUnlessEqual(auth_info.cdn_management_url, self.CDN_MANAGEMENT_URL) self.failUnlessEqual(auth_info.auth_token, self.AUTH_TOKEN) d.addCallback(_check) - def _shutdown(res): - # avoid unclean reactor error - container._auth_client.shutdown() - return res - d.addBoth(_shutdown) + d.addBoth(self._shutdown) return d