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- Committer: Aaron Bentley
- Date: 2012-01-10 13:46:48 UTC
- Revision ID: aaron@canonical.com-20120110134648-q991pmjj9jc05mr2
Actual fake service working.
- files modified:
- Makefile
added
removed
grackle/tests/test_client.py
2
2
HTTPServer,
3
3
BaseHTTPRequestHandler,
4
4
)
5
import httplib
6
import logging
7
5
import os
8
6
from signal import SIGKILL
9
import simplejson
10
7
from StringIO import StringIO
11
import sys
12
8
from unittest import TestCase
13
from urlparse import urlparse
14
from urlparse import parse_qs
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9
16
10
from testtools import ExpectedException
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11
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from grackle.client import (
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GrackleClient,
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UnsupportedOrder,
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)
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23
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def threaded_messages(messages):
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threads = {}
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count = 0
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pending = []
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for message in messages:
29
if message.get('in_reply_to') is None:
30
threads[message['message_id']] = [message]
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count += 1
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else:
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pending.append(message)
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for message in pending:
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threads[message['in_reply_to']].append(message)
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return threads.values()
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38
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class GrackleStore:
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"""A memory-backed message store."""
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def __init__(self, messages):
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"""Constructor."""
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self.messages = messages
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def get_messages(self, archive_id, query_string):
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"""Return matching messages.
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:param archive_id: The archive to retrieve from.
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:param query_string: Contains 'parameters', which is a JSON-format
51
string describing parameters.
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"""
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query = parse_qs(query_string)
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parameters = simplejson.loads(query['parameters'][0])
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order = parameters.get('order')
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messages = self.messages[archive_id]
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if order is not None :
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if order not in SUPPORTED_ORDERS:
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raise UnsupportedOrder
60
elif order.startswith('thread_'):
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threaded = threaded_messages(messages)
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messages = []
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if order == 'thread_subject':
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threaded.sort(key=lambda t: t[0]['subject'])
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if order == 'thread_oldest':
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threaded.sort(key=lambda t: min(m['date'] for m in t))
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if order == 'thread_newest':
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threaded.sort(key=lambda t: max(m['date'] for m in t))
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for thread in threaded:
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messages.extend(thread)
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else:
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messages.sort(key=lambda m: m[order])
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new_messages = []
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for message in messages:
75
if (
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not parameters['include_hidden']
77
and message.get('hidden', False)):
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continue
79
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if ('message_ids' in parameters and
81
message['message_id'] not in parameters['message_ids']):
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continue
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message = dict(message)
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if 'headers' in parameters:
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headers = dict(
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(k, v) for k, v in message['headers'].iteritems()
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if k in parameters['headers'])
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message['headers'] = headers
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max_body = parameters.get('max_body_length')
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if max_body is not None:
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message['body'] = message['body'][:max_body]
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new_messages.append(message)
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messages = new_messages
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limit = parameters.get('limit', 100)
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memo = parameters.get('memo')
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message_id_indices = dict(
97
(m['message_id'], idx) for idx, m in enumerate(messages))
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if memo is None:
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start = 0
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else:
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start = message_id_indices[memo.encode('rot13')]
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if start > 0:
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previous_memo = messages[start - 1]['message_id'].encode('rot13')
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else:
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previous_memo = None
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end = min(start + limit, len(messages))
107
if end < len(messages):
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next_memo = messages[end]['message_id'].encode('rot13')
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else:
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next_memo = None
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messages = messages[start:end]
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response = {
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'messages': messages,
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'next_memo': next_memo,
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'previous_memo': previous_memo
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}
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return response
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class ForkedFake:
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"""A Grackle service fake, as a ContextManager."""
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def __init__(self, port, messages=None, write_logs=False):
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"""Constructor.
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:param port: The tcp port to use
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:param messages: A dict of lists of dicts representing messages. The
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outer dict represents the archive, the list represents the list of
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messages for that archive.
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:param write_logs: If true, log messages will be written to stdout.
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"""
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from grackle import client
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14
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class Forked:
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def __init__(self, func_or_method):
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self.func_or_method = func_or_method
133
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self.pid = None
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self.port = port
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if messages is None:
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self.messages = {}
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else:
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self.messages = messages
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self.read_end, self.write_end = os.pipe()
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self.write_logs = write_logs
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@staticmethod
143
def from_client(client, messages=None):
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"""Instantiate a ForkedFake from the client.
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:param port: The client to provide service for.
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:param messages: A dict of lists of dicts representing messages. The
148
outer dict represents the archive, the list represents the list of
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messages for that archive.
150
"""
151
return ForkedFake(client.port, messages)
152
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def is_ready(self):
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"""Tell the parent process that the server is ready for writes."""
155
os.write(self.write_end, 'asdf')
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157
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def __enter__(self):
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"""Run the service.
159
160
Fork and start a server in the child. Return when the server is ready
161
for use."""
162
22
pid = os.fork()
163
if pid == 0:
164
self.start_server()
165
self.pid = pid
166
os.read(self.read_end, 1)
167
return
23
if pid != 0:
24
self.pid = pid
25
return
26
self.func_or_method()
168
27
169
def start_server(self):
170
"""Start the HTTP server."""
171
service = HTTPServer(('', self.port), FakeGrackleRequestHandler)
172
service.store = GrackleStore(self.messages)
173
for archive_id, messages in service.store.messages.iteritems():
174
for message in messages:
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message.setdefault('headers', {})
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self.is_ready()
177
if self.write_logs:
178
logging.basicConfig(
179
stream=sys.stderr, level=logging.INFO)
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service.serve_forever()
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28
182
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def __exit__(self, exc_type, exc_val, traceback):
183
30
os.kill(self.pid, SIGKILL)
184
31
185
32
186
SUPPORTED_ORDERS = set(
187
['date', 'author', 'subject', 'thread_newest', 'thread_oldest',
188
'thread_subject'])
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190
191
33
class FakeGrackleRequestHandler(BaseHTTPRequestHandler):
192
"""A request handler that forwards to server.store."""
193
194
def __init__(self, *args, **kwargs):
195
"""Constructor. Sets up logging."""
196
self.logger = logging.getLogger('http')
197
BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
198
34
199
35
def do_POST(self):
200
"""Create a message on POST."""
201
36
message = self.rfile.read(int(self.headers['content-length']))
202
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if message == 'This is a message':
203
self.send_response(httplib.CREATED)
38
self.send_response(200)
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self.end_headers()
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self.wfile.close()
206
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else:
207
self.send_error(httplib.BAD_REQUEST)
208
209
def do_GET(self):
210
"""Retrieve a list of messages on GET."""
211
scheme, netloc, path, params, query_string, fragments = (
212
urlparse(self.path))
213
parts = path.split('/')
214
if parts[1] == 'archive':
215
try:
216
response = self.server.store.get_messages(
217
parts[2], query_string)
218
self.send_response(httplib.OK)
219
self.end_headers()
220
self.wfile.write(simplejson.dumps(response))
221
except UnsupportedOrder:
222
self.send_response(httplib.BAD_REQUEST)
223
self.wfile.write('Unsupported order')
224
return
225
226
def log_message(self, format, *args):
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"""Override log_message to use standard Python logging."""
228
message = "%s - - [%s] %s\n" % (
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self.address_string(), self.log_date_time_string(), format%args)
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self.logger.info(message)
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self.send_error(400)
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def run_service():
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service = HTTPServer(('', 8435), FakeGrackleRequestHandler)
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service.serve_forever()
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231
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233
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class TestPutMessage(TestCase):
234
52
235
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def test_put_message(self):
236
client = GrackleClient('localhost', 8436)
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with ForkedFake.from_client(client):
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client.put_message('arch1', 'asdf', StringIO('This is a message'))
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with Forked(run_service):
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client.put_message('arch1', StringIO('This is a message'))
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with ExpectedException(Exception, 'wtf'):
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client.put_message('arch1', 'asdf',
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StringIO('This is not a message'))
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243
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class TestGetMessages(TestCase):
245
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def assertIDOrder(self, ids, messages):
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self.assertEqual(ids, [m['message_id'] for m in messages])
248
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def assertMessageIDs(self, ids, messages):
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self.assertIDOrder(
251
sorted(ids), sorted(messages, key=lambda m:m['message_id']))
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def test_get_messages(self):
254
client = GrackleClient('localhost', 8435)
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with ForkedFake.from_client(client,
256
{'baz':
257
[{'message_id': 'foo'},
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{'message_id': 'bar'}]}):
259
response = client.get_messages('baz')
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self.assertEqual(['bar', 'foo'], sorted(m['message_id'] for m in
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response['messages']))
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self.assertIs(None, response['next_memo'])
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self.assertIs(None, response['previous_memo'])
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def test_get_messages_by_id(self):
266
client = GrackleClient('localhost', 8437)
267
with ForkedFake.from_client(client,
268
{'baz':
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[{'message_id': 'foo'},
270
{'message_id': 'bar'}]}):
271
response = client.get_messages('baz', message_ids=['foo'])
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message, = response['messages']
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self.assertEqual('foo', message['message_id'])
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def test_get_messages_batching(self):
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client = GrackleClient('localhost', 8438)
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with ForkedFake.from_client(client,
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{'baz':
279
[{'message_id': 'foo'},
280
{'message_id': 'bar'}]}):
281
response = client.get_messages('baz', limit=1)
282
self.assertEqual(1, len(response['messages']))
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messages = response['messages']
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response = client.get_messages(
285
'baz', limit=1, memo=response['next_memo'])
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self.assertEqual(1, len(response['messages']))
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messages.extend(response['messages'])
288
self.assertMessageIDs(['foo', 'bar'], messages)
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def get_messages_member_order_test(self, key):
291
client = GrackleClient('localhost', 8439)
292
with ForkedFake.from_client(client,
293
{'baz': [{'message_id': 'foo', key: '2011-03-25'},
294
{'message_id': 'bar', key: '2011-03-24'}]}):
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response = client.get_messages('baz')
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self.assertIDOrder(['foo', 'bar'], response['messages'])
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response = client.get_messages('baz', order=key)
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self.assertIDOrder(['bar', 'foo'], response['messages'])
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300
def test_get_messages_date_order(self):
301
self.get_messages_member_order_test('date')
302
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def test_get_messages_author_order(self):
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self.get_messages_member_order_test('author')
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def test_get_messages_subject_order(self):
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self.get_messages_member_order_test('subject')
308
309
def test_get_messages_thread_subject_order(self):
310
client = GrackleClient('localhost', 8439)
311
with ForkedFake.from_client(client, {'baz': [
312
{'message_id': 'bar', 'subject': 'y'},
313
{'message_id': 'qux', 'subject': 'z'},
314
{'message_id': 'foo', 'subject': 'x', 'in_reply_to': 'qux'},
315
]}):
316
response = client.get_messages('baz')
317
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
318
response = client.get_messages('baz', order='subject')
319
self.assertIDOrder(['foo', 'bar', 'qux'], response['messages'])
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response = client.get_messages('baz', order='thread_subject')
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self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
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323
def test_get_messages_thread_oldest_order(self):
324
client = GrackleClient('localhost', 8439)
325
with ForkedFake.from_client(client, {'baz': [
326
{'message_id': 'bar', 'date': 'x'},
327
{'message_id': 'qux', 'date': 'z'},
328
{'message_id': 'foo', 'date': 'y', 'in_reply_to': 'qux'},
329
]}):
330
response = client.get_messages('baz')
331
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
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response = client.get_messages('baz', order='date')
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self.assertIDOrder(['bar', 'foo', 'qux'], response['messages'])
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response = client.get_messages('baz', order='thread_oldest')
335
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
336
337
def test_get_messages_thread_newest_order(self):
338
client = GrackleClient('localhost', 8439)
339
with ForkedFake.from_client(client, {'baz': [
340
{'message_id': 'bar', 'date': 'x'},
341
{'message_id': 'qux', 'date': 'w'},
342
{'message_id': 'foo', 'date': 'y', 'in_reply_to': 'bar'},
343
{'message_id': 'baz', 'date': 'z', 'in_reply_to': 'qux'},
344
]}):
345
response = client.get_messages('baz', order='date')
346
self.assertIDOrder(
347
['qux', 'bar', 'foo', 'baz'], response['messages'])
348
response = client.get_messages('baz', order='thread_newest')
349
self.assertIDOrder(
350
['bar', 'foo', 'qux', 'baz'], response['messages'])
351
352
def test_get_messages_unsupported_order(self):
353
client = GrackleClient('localhost', 8439)
354
with ForkedFake.from_client(client,
355
{'baz': [{'message_id': 'foo', 'date': '2011-03-25'},
356
{'message_id': 'bar', 'date': '2011-03-24'}]}):
357
with ExpectedException(UnsupportedOrder, ''):
358
client.get_messages('baz', order='nonsense')
359
360
def test_get_messages_headers_no_headers(self):
361
client = GrackleClient('localhost', 8440)
362
with ForkedFake.from_client(client,
363
{'baz': [
364
{'message_id': 'foo'}
365
]}):
366
response = client.get_messages('baz', headers=[
367
'Subject', 'Date', 'X-Launchpad-Message-Rationale'])
368
first_message = response['messages'][0]
369
self.assertEqual('foo', first_message['message_id'])
370
self.assertEqual({}, first_message['headers'])
371
372
def test_get_messages_headers_exclude_headers(self):
373
client = GrackleClient('localhost', 8441)
374
with ForkedFake.from_client(client,
375
{'baz': [
376
{'message_id': 'foo', 'headers': {'From': 'me'}}
377
]}):
378
response = client.get_messages('baz', headers=[
379
'Subject', 'Date', 'X-Launchpad-Message-Rationale'])
380
first_message = response['messages'][0]
381
self.assertEqual('foo', first_message['message_id'])
382
self.assertEqual({}, first_message['headers'])
383
384
def test_get_messages_headers_include_headers(self):
385
client = GrackleClient('localhost', 8442)
386
with ForkedFake.from_client(client,
387
{'baz': [
388
{'message_id': 'foo', 'headers': {'From': 'me', 'To': 'you'}}
389
]}):
390
response = client.get_messages('baz', headers=[
391
'From', 'To'])
392
first_message = response['messages'][0]
393
self.assertEqual('foo', first_message['message_id'])
394
self.assertEqual({'From': 'me', 'To': 'you'}, first_message['headers'])
395
396
def test_get_messages_max_body_length(self):
397
client = GrackleClient('localhost', 8443)
398
with ForkedFake.from_client(client,
399
{'baz': [
400
{'message_id': 'foo', 'body': u'abcdefghi'}
401
]}):
402
response = client.get_messages('baz', max_body_length=3)
403
first_message = response['messages'][0]
404
self.assertEqual('abc', first_message['body'])
405
406
def test_include_hidden(self):
407
client = GrackleClient('localhost', 8444)
408
with ForkedFake.from_client(client,
409
{'baz': [
410
{'message_id': 'foo', 'hidden': True},
411
{'message_id': 'bar', 'hidden': False}
412
]}):
413
response = client.get_messages('baz', include_hidden=True)
414
self.assertMessageIDs(['bar', 'foo'], response['messages'])
415
response = client.get_messages('baz', include_hidden=False)
416
self.assertMessageIDs(['bar'], response['messages'])
417
57
client.put_message('arch1', StringIO('This is not a message'))
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