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Viewing changes to grackle/tests/test_client.py

  • Committer: Aaron Bentley
  • Date: 2012-01-10 15:36:31 UTC
  • Revision ID: aaron@canonical.com-20120110153631-vvqlfg122u08wsrt
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    BaseHTTPRequestHandler,
4
4
    )
5
5
import httplib
6
 
import logging
7
6
import os
8
7
from signal import SIGKILL
9
 
import simplejson
10
8
from StringIO import StringIO
11
 
import sys
12
9
from unittest import TestCase
13
 
from urlparse import urlparse
14
 
from urlparse import parse_qs
15
10
 
16
11
from testtools import ExpectedException
17
12
 
18
13
from grackle.client import (
19
14
    GrackleClient,
20
 
    UnsupportedOrder,
21
15
    )
22
16
 
23
17
 
24
 
def threaded_messages(messages):
25
 
    threads = {}
26
 
    count = 0
27
 
    pending = []
28
 
    for message in messages:
29
 
        if message.get('in_reply_to') is None:
30
 
            threads[message['message_id']] = [message]
31
 
            count += 1
32
 
        else:
33
 
            pending.append(message)
34
 
    for message in pending:
35
 
        threads[message['in_reply_to']].append(message)
36
 
    return threads.values()
37
 
 
38
 
 
39
 
class GrackleStore:
40
 
 
41
 
    def __init__(self, messages):
42
 
        self.messages = messages
43
 
 
44
 
    def get_messages(self, archive_id, query_string):
45
 
        query = parse_qs(query_string)
46
 
        parameters = simplejson.loads(query['parameters'][0])
47
 
        order = parameters.get('order')
48
 
        messages = self.messages[archive_id]
49
 
        if order is not None :
50
 
            if order not in SUPPORTED_ORDERS:
51
 
                raise UnsupportedOrder
52
 
            elif order.startswith('thread_'):
53
 
                threaded = threaded_messages(messages)
54
 
                messages = []
55
 
                if order == 'thread_subject':
56
 
                    threaded.sort(key=lambda t: t[0]['subject'])
57
 
                if order == 'thread_oldest':
58
 
                    threaded.sort(key=lambda t: min(m['date'] for m in t))
59
 
                if order == 'thread_newest':
60
 
                    threaded.sort(key=lambda t: max(m['date'] for m in t))
61
 
                for thread in threaded:
62
 
                    messages.extend(thread)
63
 
            else:
64
 
                messages.sort(key=lambda m: m[order])
65
 
        new_messages = []
66
 
        for message in messages:
67
 
            if (
68
 
                not parameters['include_hidden']
69
 
                and message.get('hidden', False)):
70
 
                continue
71
 
 
72
 
            if ('message_ids' in parameters and
73
 
                message['message_id'] not in parameters['message_ids']):
74
 
                continue
75
 
            message = dict(message)
76
 
            if 'headers' in parameters:
77
 
                headers = dict(
78
 
                    (k, v) for k, v in message['headers'].iteritems()
79
 
                    if k in parameters['headers'])
80
 
                message['headers'] = headers
81
 
            max_body = parameters.get('max_body_length')
82
 
            if max_body is not None:
83
 
                message['body'] = message['body'][:max_body]
84
 
            new_messages.append(message)
85
 
        messages = new_messages
86
 
        limit = parameters.get('limit', 100)
87
 
        memo = parameters.get('memo')
88
 
        message_id_indices = dict(
89
 
            (m['message_id'], idx) for idx, m in enumerate(messages))
90
 
        if memo is None:
91
 
            start = 0
92
 
        else:
93
 
            start = message_id_indices[memo.encode('rot13')]
94
 
        if start > 0:
95
 
            previous_memo = messages[start - 1]['message_id'].encode('rot13')
96
 
        else:
97
 
            previous_memo = None
98
 
        end = min(start + limit, len(messages))
99
 
        if end < len(messages):
100
 
            next_memo = messages[end]['message_id'].encode('rot13')
101
 
        else:
102
 
            next_memo = None
103
 
        messages = messages[start:end]
104
 
 
105
 
        response = {
106
 
            'messages': messages,
107
 
            'next_memo': next_memo,
108
 
            'previous_memo': previous_memo
109
 
            }
110
 
        return response
111
 
 
112
 
 
113
 
 
114
 
class ForkedFake:
115
 
 
116
 
    def __init__(self, port, messages=None, write_logs=False):
 
18
class Forked:
 
19
 
 
20
    def __init__(self, func_or_method, *args):
 
21
        self.func_or_method = func_or_method
117
22
        self.pid = None
118
 
        self.port = port
119
 
        if messages is None:
120
 
            self.messages = {}
121
 
        else:
122
 
            self.messages = messages
123
 
        self.read_end, self.write_end = os.pipe()
124
 
        self.write_logs = write_logs
125
 
 
126
 
    @staticmethod
127
 
    def from_client(client, messages=None):
128
 
        return ForkedFake(client.port, messages)
129
 
 
130
 
    def is_ready(self):
131
 
        os.write(self.write_end, 'asdf')
 
23
        self.args = args
132
24
 
133
25
    def __enter__(self):
134
26
        pid = os.fork()
135
 
        if pid == 0:
136
 
            self.start_server()
137
 
        self.pid = pid
138
 
        os.read(self.read_end, 1)
139
 
        return
 
27
        if pid != 0:
 
28
            self.pid = pid
 
29
            return
 
30
        self.func_or_method(*self.args)
140
31
 
141
 
    def start_server(self):
142
 
        service = HTTPServer(('', self.port), FakeGrackleRequestHandler)
143
 
        service.store = GrackleStore(self.messages)
144
 
        for archive_id, messages in service.store.messages.iteritems():
145
 
            for message in messages:
146
 
                message.setdefault('headers', {})
147
 
        self.is_ready()
148
 
        if self.write_logs:
149
 
            logging.basicConfig(
150
 
                stream=sys.stderr, level=logging.INFO)
151
 
        service.serve_forever()
152
32
 
153
33
    def __exit__(self, exc_type, exc_val, traceback):
154
34
        os.kill(self.pid, SIGKILL)
155
35
 
156
36
 
157
 
SUPPORTED_ORDERS = set(
158
 
    ['date', 'author', 'subject', 'thread_newest', 'thread_oldest',
159
 
     'thread_subject'])
160
 
 
161
 
 
162
37
class FakeGrackleRequestHandler(BaseHTTPRequestHandler):
163
38
 
164
 
    def __init__(self, *args, **kwargs):
165
 
        self.logger = logging.getLogger('http')
166
 
        BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
167
 
 
168
 
    def do_POST(self):
 
39
    def do_PUT(self):
169
40
        message = self.rfile.read(int(self.headers['content-length']))
170
41
        if message == 'This is a message':
171
42
            self.send_response(httplib.CREATED)
174
45
        else:
175
46
            self.send_error(httplib.BAD_REQUEST)
176
47
 
177
 
    def do_GET(self):
178
 
        scheme, netloc, path, params, query_string, fragments = (
179
 
            urlparse(self.path))
180
 
        parts = path.split('/')
181
 
        if parts[1] == 'archive':
182
 
            try:
183
 
                response = self.server.store.get_messages(
184
 
                    parts[2], query_string)
185
 
                self.send_response(httplib.OK)
186
 
                self.end_headers()
187
 
                self.wfile.write(simplejson.dumps(response))
188
 
            except UnsupportedOrder:
189
 
                self.send_response(httplib.BAD_REQUEST)
190
 
                self.wfile.write('Unsupported order')
191
 
                return
192
 
 
193
 
    def log_message(self, format, *args):
194
 
        message = "%s - - [%s] %s\n" % (
195
 
            self.address_string(), self.log_date_time_string(), format%args)
196
 
        self.logger.info(message)
 
48
 
 
49
def run_service(port):
 
50
    service = HTTPServer(('', port), FakeGrackleRequestHandler)
 
51
    service.serve_forever()
 
52
 
197
53
 
198
54
 
199
55
class TestPutMessage(TestCase):
200
56
 
201
57
    def test_put_message(self):
202
 
        client = GrackleClient('localhost', 8436)
203
 
        with ForkedFake.from_client(client):
 
58
        client = GrackleClient('localhost', 8435)
 
59
        with Forked(run_service, client.port):
204
60
            client.put_message('arch1', 'asdf', StringIO('This is a message'))
205
61
            with ExpectedException(Exception, 'wtf'):
206
62
                client.put_message('arch1', 'asdf',
207
63
                    StringIO('This is not a message'))
208
 
 
209
 
 
210
 
class TestGetMessages(TestCase):
211
 
 
212
 
    def assertIDOrder(self, ids, messages):
213
 
        self.assertEqual(ids, [m['message_id'] for m in messages])
214
 
 
215
 
    def assertMessageIDs(self, ids, messages):
216
 
        self.assertIDOrder(
217
 
            sorted(ids), sorted(messages, key=lambda m:m['message_id']))
218
 
 
219
 
    def test_get_messages(self):
220
 
        client = GrackleClient('localhost', 8435)
221
 
        with ForkedFake.from_client(client,
222
 
            {'baz':
223
 
            [{'message_id': 'foo'},
224
 
             {'message_id': 'bar'}]}):
225
 
            response = client.get_messages('baz')
226
 
        self.assertEqual(['bar', 'foo'], sorted(m['message_id'] for m in
227
 
            response['messages']))
228
 
        self.assertIs(None, response['next_memo'])
229
 
        self.assertIs(None, response['previous_memo'])
230
 
 
231
 
    def test_get_messages_by_id(self):
232
 
        client = GrackleClient('localhost', 8437)
233
 
        with ForkedFake.from_client(client,
234
 
            {'baz':
235
 
            [{'message_id': 'foo'},
236
 
             {'message_id': 'bar'}]}):
237
 
            response = client.get_messages('baz', message_ids=['foo'])
238
 
        message, = response['messages']
239
 
        self.assertEqual('foo', message['message_id'])
240
 
 
241
 
    def test_get_messages_batching(self):
242
 
        client = GrackleClient('localhost', 8438)
243
 
        with ForkedFake.from_client(client,
244
 
            {'baz':
245
 
            [{'message_id': 'foo'},
246
 
             {'message_id': 'bar'}]}):
247
 
            response = client.get_messages('baz', limit=1)
248
 
            self.assertEqual(1, len(response['messages']))
249
 
            messages = response['messages']
250
 
            response = client.get_messages(
251
 
                'baz', limit=1, memo=response['next_memo'])
252
 
            self.assertEqual(1, len(response['messages']))
253
 
            messages.extend(response['messages'])
254
 
            self.assertMessageIDs(['foo', 'bar'], messages)
255
 
 
256
 
    def get_messages_member_order_test(self, key):
257
 
        client = GrackleClient('localhost', 8439)
258
 
        with ForkedFake.from_client(client,
259
 
                {'baz': [{'message_id': 'foo', key: '2011-03-25'},
260
 
                 {'message_id': 'bar', key: '2011-03-24'}]}):
261
 
            response = client.get_messages('baz')
262
 
            self.assertIDOrder(['foo', 'bar'], response['messages'])
263
 
            response = client.get_messages('baz', order=key)
264
 
            self.assertIDOrder(['bar', 'foo'], response['messages'])
265
 
 
266
 
    def test_get_messages_date_order(self):
267
 
        self.get_messages_member_order_test('date')
268
 
 
269
 
    def test_get_messages_author_order(self):
270
 
        self.get_messages_member_order_test('author')
271
 
 
272
 
    def test_get_messages_subject_order(self):
273
 
        self.get_messages_member_order_test('subject')
274
 
 
275
 
    def test_get_messages_thread_subject_order(self):
276
 
        client = GrackleClient('localhost', 8439)
277
 
        with ForkedFake.from_client(client, {'baz': [
278
 
            {'message_id': 'bar', 'subject': 'y'},
279
 
            {'message_id': 'qux', 'subject': 'z'},
280
 
            {'message_id': 'foo', 'subject': 'x', 'in_reply_to': 'qux'},
281
 
            ]}):
282
 
            response = client.get_messages('baz')
283
 
            self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
284
 
            response = client.get_messages('baz', order='subject')
285
 
            self.assertIDOrder(['foo', 'bar', 'qux'], response['messages'])
286
 
            response = client.get_messages('baz', order='thread_subject')
287
 
            self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
288
 
 
289
 
    def test_get_messages_thread_oldest_order(self):
290
 
        client = GrackleClient('localhost', 8439)
291
 
        with ForkedFake.from_client(client, {'baz': [
292
 
            {'message_id': 'bar', 'date': 'x'},
293
 
            {'message_id': 'qux', 'date': 'z'},
294
 
            {'message_id': 'foo', 'date': 'y', 'in_reply_to': 'qux'},
295
 
            ]}):
296
 
            response = client.get_messages('baz')
297
 
            self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
298
 
            response = client.get_messages('baz', order='date')
299
 
            self.assertIDOrder(['bar', 'foo', 'qux'], response['messages'])
300
 
            response = client.get_messages('baz', order='thread_oldest')
301
 
            self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
302
 
 
303
 
    def test_get_messages_thread_newest_order(self):
304
 
        client = GrackleClient('localhost', 8439)
305
 
        with ForkedFake.from_client(client, {'baz': [
306
 
            {'message_id': 'bar', 'date': 'x'},
307
 
            {'message_id': 'qux', 'date': 'w'},
308
 
            {'message_id': 'foo', 'date': 'y', 'in_reply_to': 'bar'},
309
 
            {'message_id': 'baz', 'date': 'z', 'in_reply_to': 'qux'},
310
 
            ]}):
311
 
            response = client.get_messages('baz', order='date')
312
 
            self.assertIDOrder(
313
 
                ['qux', 'bar', 'foo', 'baz'], response['messages'])
314
 
            response = client.get_messages('baz', order='thread_newest')
315
 
            self.assertIDOrder(
316
 
                ['bar', 'foo', 'qux', 'baz'], response['messages'])
317
 
 
318
 
    def test_get_messages_unsupported_order(self):
319
 
        client = GrackleClient('localhost', 8439)
320
 
        with ForkedFake.from_client(client,
321
 
                {'baz': [{'message_id': 'foo', 'date': '2011-03-25'},
322
 
                 {'message_id': 'bar', 'date': '2011-03-24'}]}):
323
 
            with ExpectedException(UnsupportedOrder):
324
 
                client.get_messages('baz', order='nonsense')
325
 
 
326
 
    def test_get_messages_headers_no_headers(self):
327
 
        client = GrackleClient('localhost', 8440)
328
 
        with ForkedFake.from_client(client,
329
 
            {'baz': [
330
 
                {'message_id': 'foo'}
331
 
            ]}):
332
 
            response = client.get_messages('baz', headers=[
333
 
                'Subject', 'Date', 'X-Launchpad-Message-Rationale'])
334
 
        first_message = response['messages'][0]
335
 
        self.assertEqual('foo', first_message['message_id'])
336
 
        self.assertEqual({}, first_message['headers'])
337
 
 
338
 
    def test_get_messages_headers_exclude_headers(self):
339
 
        client = GrackleClient('localhost', 8441)
340
 
        with ForkedFake.from_client(client,
341
 
            {'baz': [
342
 
                {'message_id': 'foo', 'headers': {'From': 'me'}}
343
 
            ]}):
344
 
            response = client.get_messages('baz', headers=[
345
 
                'Subject', 'Date', 'X-Launchpad-Message-Rationale'])
346
 
        first_message = response['messages'][0]
347
 
        self.assertEqual('foo', first_message['message_id'])
348
 
        self.assertEqual({}, first_message['headers'])
349
 
 
350
 
    def test_get_messages_headers_include_headers(self):
351
 
        client = GrackleClient('localhost', 8442)
352
 
        with ForkedFake.from_client(client,
353
 
            {'baz': [
354
 
                {'message_id': 'foo', 'headers': {'From': 'me', 'To': 'you'}}
355
 
            ]}):
356
 
            response = client.get_messages('baz', headers=[
357
 
                'From', 'To'])
358
 
        first_message = response['messages'][0]
359
 
        self.assertEqual('foo', first_message['message_id'])
360
 
        self.assertEqual({'From': 'me', 'To': 'you'}, first_message['headers'])
361
 
 
362
 
    def test_get_messages_max_body_length(self):
363
 
        client = GrackleClient('localhost', 8443)
364
 
        with ForkedFake.from_client(client,
365
 
            {'baz': [
366
 
                {'message_id': 'foo', 'body': u'abcdefghi'}
367
 
            ]}):
368
 
            response = client.get_messages('baz', max_body_length=3)
369
 
        first_message = response['messages'][0]
370
 
        self.assertEqual('abc', first_message['body'])
371
 
 
372
 
    def test_include_hidden(self):
373
 
        client = GrackleClient('localhost', 8444)
374
 
        with ForkedFake.from_client(client,
375
 
            {'baz': [
376
 
                {'message_id': 'foo', 'hidden': True},
377
 
                {'message_id': 'bar', 'hidden': False}
378
 
            ]}):
379
 
            response = client.get_messages('baz', include_hidden=True)
380
 
            self.assertMessageIDs(['bar', 'foo'], response['messages'])
381
 
            response = client.get_messages('baz', include_hidden=False)
382
 
            self.assertMessageIDs(['bar'], response['messages'])
383