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Viewing changes to grackle/tests/test_client.py

  • Committer: Aaron Bentley
  • Date: 2012-01-12 11:31:51 UTC
  • mto: (6.1.30 trunk)
  • mto: This revision was merged to the branch mainline in revision 45.
  • Revision ID: aaron@canonical.com-20120112113151-qe327t15vwogee6t
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grackle/tests/test_client.py
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import httplib
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import os
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from signal import SIGKILL
 
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import simplejson
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from StringIO import StringIO
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from unittest import TestCase
 
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from urlparse import urlparse
 
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from urlparse import parse_qs
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from testtools import ExpectedException
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from grackle import client
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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
 
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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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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:
 
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        if message.get('in_reply_to') is None:
 
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            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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class ForkedFake:
 
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    def __init__(self, port, messages=None):
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        self.pid = None
 
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        self.port = port
 
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        self.messages = messages
 
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        self.read_end, self.write_end = os.pipe()
 
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    def is_ready(self):
 
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        os.write(self.write_end, 'asdf')
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    def __enter__(self):
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        pid = os.fork()
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        if pid != 0:
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            self.pid = pid
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            return
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        self.func_or_method()
 
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        if pid == 0:
 
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            self.start_server()
 
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        self.pid = pid
 
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        os.read(self.read_end, 1)
 
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        return
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55
 
 
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    def start_server(self):
 
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        service = HTTPServer(('', self.port), FakeGrackleRequestHandler)
 
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        service.messages = self.messages
 
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        self.is_ready()
 
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        service.serve_forever()
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    def __exit__(self, exc_type, exc_val, traceback):
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        os.kill(self.pid, SIGKILL)
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SUPPORTED_ORDERS = set(['date', 'author', 'subject', 'thread_subject'])
 
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class FakeGrackleRequestHandler(BaseHTTPRequestHandler):
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    def do_POST(self):
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        else:
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            self.send_error(httplib.BAD_REQUEST)
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def run_service():
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    service = HTTPServer(('', 8435), FakeGrackleRequestHandler)
48
 
    service.serve_forever()
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    def do_GET(self):
 
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        scheme, netloc, path, params, query_string, fragments = (
 
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            urlparse(self.path))
 
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        archive = os.path.split(path)[1]
 
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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.server.messages[archive]
 
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        if order is not None :
 
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            if order not in SUPPORTED_ORDERS:
 
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                self.send_response(httplib.BAD_REQUEST)
 
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                self.wfile.write('Unsupported order')
 
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                return
 
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            elif order == 'thread_subject':
 
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                threaded = threaded_messages(messages)
 
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                messages = []
 
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                threaded.sort(key=lambda t: t[0]['subject'])
 
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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 = sorted(
 
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                    self.server.messages[archive], key=lambda m: m[order])
 
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        messages = [m for m in messages
 
103
                    if 'message_ids' not in parameters or
 
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                    m['message_id'] in parameters['message_ids']]
 
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        self.send_response(httplib.OK)
 
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        self.end_headers()
 
107
        limit = parameters.get('limit', 100)
 
108
        memo = parameters.get('memo')
 
109
        message_id_indices = dict(
 
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            (m['message_id'], idx) for idx, m in enumerate(messages))
 
111
        if memo is None:
 
112
            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:
 
118
            previous_memo = None
 
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        end = min(start + limit, len(messages))
 
120
        if end < len(messages):
 
121
            next_memo = messages[end]['message_id'].encode('rot13')
 
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        else:
 
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            next_memo = None
 
124
        messages = messages[start:end]
 
125
        response = {
 
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            'messages': messages,
 
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            'next_memo': next_memo,
 
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            'previous_memo': previous_memo
 
129
            }
 
130
        self.wfile.write(simplejson.dumps(response))
 
131
 
 
132
 
 
133
def fake_grackle_service(client, messages=None):
 
134
    if messages is None:
 
135
        messages = {}
 
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    return ForkedFake(client.port, messages)
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137
 
51
138
 
52
139
class TestPutMessage(TestCase):
53
140
 
54
141
    def test_put_message(self):
55
 
        with Forked(run_service):
56
 
            client.put_message('arch1', StringIO('This is a message'))
 
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        client = GrackleClient('localhost', 8436)
 
143
        with fake_grackle_service(client):
 
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            client.put_message('arch1', 'asdf', StringIO('This is a message'))
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            with ExpectedException(Exception, 'wtf'):
58
 
                client.put_message('arch1', StringIO('This is not a message'))
 
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                client.put_message('arch1', 'asdf',
 
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                    StringIO('This is not a message'))
 
148
 
 
149
 
 
150
class TestGetMessages(TestCase):
 
151
 
 
152
    def assertIDOrder(self, ids, messages):
 
153
        self.assertEqual(ids, [m['message_id'] for m in messages])
 
154
 
 
155
    def assertMessageIDs(self, ids, messages):
 
156
        self.assertIDOrder(
 
157
            sorted(ids), sorted(messages, key=lambda m:m['message_id']))
 
158
 
 
159
    def test_get_messages(self):
 
160
        client = GrackleClient('localhost', 8435)
 
161
        with fake_grackle_service(client,
 
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            {'baz':
 
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            [{'message_id': 'foo'},
 
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             {'message_id': 'bar'}]}):
 
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            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):
 
172
        client = GrackleClient('localhost', 8437)
 
173
        with fake_grackle_service(client,
 
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            {'baz':
 
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            [{'message_id': 'foo'},
 
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             {'message_id': 'bar'}]}):
 
177
            response = client.get_messages('baz', message_ids=['foo'])
 
178
        message, = response['messages']
 
179
        self.assertEqual('foo', message['message_id'])
 
180
 
 
181
    def test_get_messages_batching(self):
 
182
        client = GrackleClient('localhost', 8438)
 
183
        with fake_grackle_service(client,
 
184
            {'baz':
 
185
            [{'message_id': 'foo'},
 
186
             {'message_id': 'bar'}]}):
 
187
            response = client.get_messages('baz', limit=1)
 
188
            self.assertEqual(1, len(response['messages']))
 
189
            messages = response['messages']
 
190
            response = client.get_messages(
 
191
                'baz', limit=1, memo=response['next_memo'])
 
192
            self.assertEqual(1, len(response['messages']))
 
193
            messages.extend(response['messages'])
 
194
            self.assertMessageIDs(['foo', 'bar'], messages)
 
195
 
 
196
    def get_messages_member_order_test(self, key):
 
197
        client = GrackleClient('localhost', 8439)
 
198
        with fake_grackle_service(client,
 
199
                {'baz': [{'message_id': 'foo', key: '2011-03-25'},
 
200
                 {'message_id': 'bar', key: '2011-03-24'}]}):
 
201
            response = client.get_messages('baz')
 
202
            self.assertIDOrder(['foo', 'bar'], response['messages'])
 
203
            response = client.get_messages('baz', order=key)
 
204
            self.assertIDOrder(['bar', 'foo'], response['messages'])
 
205
 
 
206
    def test_get_messages_date_order(self):
 
207
        self.get_messages_member_order_test('date')
 
208
 
 
209
    def test_get_messages_author_order(self):
 
210
        self.get_messages_member_order_test('author')
 
211
 
 
212
    def test_get_messages_subject_order(self):
 
213
        self.get_messages_member_order_test('subject')
 
214
 
 
215
    def test_get_messages_thread_subject_order(self):
 
216
        client = GrackleClient('localhost', 8439)
 
217
        with fake_grackle_service(client, {'baz': [
 
218
            {'message_id': 'bar', 'subject': 'y'},
 
219
            {'message_id': 'qux', 'subject': 'z'},
 
220
            {'message_id': 'foo', 'subject': 'x', 'in_reply_to': 'qux'},
 
221
            ]}):
 
222
            response = client.get_messages('baz')
 
223
            self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
 
224
            response = client.get_messages('baz', order='subject')
 
225
            self.assertIDOrder(['foo', 'bar', 'qux'], response['messages'])
 
226
            response = client.get_messages('baz', order='thread_subject')
 
227
            self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
 
228
 
 
229
    def test_get_messages_unsupported_order(self):
 
230
        client = GrackleClient('localhost', 8439)
 
231
        with fake_grackle_service(client,
 
232
                {'baz': [{'message_id': 'foo', 'date': '2011-03-25'},
 
233
                 {'message_id': 'bar', 'date': '2011-03-24'}]}):
 
234
            with ExpectedException(UnsupportedOrder):
 
235
                client.get_messages('baz', order='nonsense')