summary refs log tree commit diff
path: root/tests/unittest.py
blob: 7772a47078945357649d504bd4a1ed01da33e7ce (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2018 New Vector
#
# 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 gc
import hashlib
import hmac
import logging

from mock import Mock

from canonicaljson import json

import twisted
import twisted.logger
from twisted.internet.defer import Deferred
from twisted.trial import unittest

from synapse.http.server import JsonResource
from synapse.http.site import SynapseRequest
from synapse.server import HomeServer
from synapse.types import UserID, create_requester
from synapse.util.logcontext import LoggingContext

from tests.server import get_clock, make_request, render, setup_test_homeserver
from tests.test_utils.logging_setup import setup_logging
from tests.utils import default_config, setupdb

setupdb()
setup_logging()


def around(target):
    """A CLOS-style 'around' modifier, which wraps the original method of the
    given instance with another piece of code.

    @around(self)
    def method_name(orig, *args, **kwargs):
        return orig(*args, **kwargs)
    """

    def _around(code):
        name = code.__name__
        orig = getattr(target, name)

        def new(*args, **kwargs):
            return code(orig, *args, **kwargs)

        setattr(target, name, new)

    return _around


class TestCase(unittest.TestCase):
    """A subclass of twisted.trial's TestCase which looks for 'loglevel'
    attributes on both itself and its individual test methods, to override the
    root logger's logging level while that test (case|method) runs."""

    def __init__(self, methodName, *args, **kwargs):
        super(TestCase, self).__init__(methodName, *args, **kwargs)

        method = getattr(self, methodName)

        level = getattr(method, "loglevel", getattr(self, "loglevel", None))

        @around(self)
        def setUp(orig):
            # enable debugging of delayed calls - this means that we get a
            # traceback when a unit test exits leaving things on the reactor.
            twisted.internet.base.DelayedCall.debug = True

            # if we're not starting in the sentinel logcontext, then to be honest
            # all future bets are off.
            if LoggingContext.current_context() is not LoggingContext.sentinel:
                self.fail(
                    "Test starting with non-sentinel logging context %s" % (
                        LoggingContext.current_context(),
                    )
                )

            old_level = logging.getLogger().level
            if level is not None and old_level != level:

                @around(self)
                def tearDown(orig):
                    ret = orig()
                    logging.getLogger().setLevel(old_level)
                    return ret

                logging.getLogger().setLevel(level)

            return orig()

        @around(self)
        def tearDown(orig):
            ret = orig()
            # force a GC to workaround problems with deferreds leaking logcontexts when
            # they are GCed (see the logcontext docs)
            gc.collect()
            LoggingContext.set_current_context(LoggingContext.sentinel)

            return ret

    def assertObjectHasAttributes(self, attrs, obj):
        """Asserts that the given object has each of the attributes given, and
        that the value of each matches according to assertEquals."""
        for (key, value) in attrs.items():
            if not hasattr(obj, key):
                raise AssertionError("Expected obj to have a '.%s'" % key)
            try:
                self.assertEquals(attrs[key], getattr(obj, key))
            except AssertionError as e:
                raise (type(e))(e.message + " for '.%s'" % key)

    def assert_dict(self, required, actual):
        """Does a partial assert of a dict.

        Args:
            required (dict): The keys and value which MUST be in 'actual'.
            actual (dict): The test result. Extra keys will not be checked.
        """
        for key in required:
            self.assertEquals(
                required[key], actual[key], msg="%s mismatch. %s" % (key, actual)
            )


def DEBUG(target):
    """A decorator to set the .loglevel attribute to logging.DEBUG.
    Can apply to either a TestCase or an individual test method."""
    target.loglevel = logging.DEBUG
    return target


def INFO(target):
    """A decorator to set the .loglevel attribute to logging.INFO.
    Can apply to either a TestCase or an individual test method."""
    target.loglevel = logging.INFO
    return target


class HomeserverTestCase(TestCase):
    """
    A base TestCase that reduces boilerplate for HomeServer-using test cases.

    Attributes:
        servlets (list[function]): List of servlet registration function.
        user_id (str): The user ID to assume if auth is hijacked.
        hijack_auth (bool): Whether to hijack auth to return the user specified
        in user_id.
    """

    servlets = []
    hijack_auth = True

    def setUp(self):
        """
        Set up the TestCase by calling the homeserver constructor, optionally
        hijacking the authentication system to return a fixed user, and then
        calling the prepare function.
        """
        self.reactor, self.clock = get_clock()
        self._hs_args = {"clock": self.clock, "reactor": self.reactor}
        self.hs = self.make_homeserver(self.reactor, self.clock)

        if self.hs is None:
            raise Exception("No homeserver returned from make_homeserver.")

        if not isinstance(self.hs, HomeServer):
            raise Exception("A homeserver wasn't returned, but %r" % (self.hs,))

        # Register the resources
        self.resource = JsonResource(self.hs)

        for servlet in self.servlets:
            servlet(self.hs, self.resource)

        from tests.rest.client.v1.utils import RestHelper

        self.helper = RestHelper(self.hs, self.resource, getattr(self, "user_id", None))

        if hasattr(self, "user_id"):
            if self.hijack_auth:

                def get_user_by_access_token(token=None, allow_guest=False):
                    return {
                        "user": UserID.from_string(self.helper.auth_user_id),
                        "token_id": 1,
                        "is_guest": False,
                    }

                def get_user_by_req(request, allow_guest=False, rights="access"):
                    return create_requester(
                        UserID.from_string(self.helper.auth_user_id), 1, False, None
                    )

                self.hs.get_auth().get_user_by_req = get_user_by_req
                self.hs.get_auth().get_user_by_access_token = get_user_by_access_token
                self.hs.get_auth().get_access_token_from_request = Mock(
                    return_value="1234"
                )

        if hasattr(self, "prepare"):
            self.prepare(self.reactor, self.clock, self.hs)

    def make_homeserver(self, reactor, clock):
        """
        Make and return a homeserver.

        Args:
            reactor: A Twisted Reactor, or something that pretends to be one.
            clock (synapse.util.Clock): The Clock, associated with the reactor.

        Returns:
            A homeserver (synapse.server.HomeServer) suitable for testing.

        Function to be overridden in subclasses.
        """
        hs = self.setup_test_homeserver()
        return hs

    def default_config(self, name="test"):
        """
        Get a default HomeServer config object.

        Args:
            name (str): The homeserver name/domain.
        """
        return default_config(name)

    def prepare(self, reactor, clock, homeserver):
        """
        Prepare for the test.  This involves things like mocking out parts of
        the homeserver, or building test data common across the whole test
        suite.

        Args:
            reactor: A Twisted Reactor, or something that pretends to be one.
            clock (synapse.util.Clock): The Clock, associated with the reactor.
            homeserver (synapse.server.HomeServer): The HomeServer to test
            against.

        Function to optionally be overridden in subclasses.
        """

    def make_request(
        self,
        method,
        path,
        content=b"",
        access_token=None,
        request=SynapseRequest,
        shorthand=True,
        federation_auth_origin=None,
    ):
        """
        Create a SynapseRequest at the path using the method and containing the
        given content.

        Args:
            method (bytes/unicode): The HTTP request method ("verb").
            path (bytes/unicode): The HTTP path, suitably URL encoded (e.g.
            escaped UTF-8 & spaces and such).
            content (bytes or dict): The body of the request. JSON-encoded, if
            a dict.
            shorthand: Whether to try and be helpful and prefix the given URL
            with the usual REST API path, if it doesn't contain it.
            federation_auth_origin (bytes|None): if set to not-None, we will add a fake
                Authorization header pretenting to be the given server name.

        Returns:
            Tuple[synapse.http.site.SynapseRequest, channel]
        """
        if isinstance(content, dict):
            content = json.dumps(content).encode('utf8')

        return make_request(
            self.reactor, method, path, content, access_token, request, shorthand,
            federation_auth_origin,
        )

    def render(self, request):
        """
        Render a request against the resources registered by the test class's
        servlets.

        Args:
            request (synapse.http.site.SynapseRequest): The request to render.
        """
        render(request, self.resource, self.reactor)

    def setup_test_homeserver(self, *args, **kwargs):
        """
        Set up the test homeserver, meant to be called by the overridable
        make_homeserver. It automatically passes through the test class's
        clock & reactor.

        Args:
            See tests.utils.setup_test_homeserver.

        Returns:
            synapse.server.HomeServer
        """
        kwargs = dict(kwargs)
        kwargs.update(self._hs_args)
        hs = setup_test_homeserver(self.addCleanup, *args, **kwargs)
        stor = hs.get_datastore()

        # Run the database background updates.
        if hasattr(stor, "do_next_background_update"):
            while not self.get_success(stor.has_completed_background_updates()):
                self.get_success(stor.do_next_background_update(1))

        return hs

    def pump(self, by=0.0):
        """
        Pump the reactor enough that Deferreds will fire.
        """
        self.reactor.pump([by] * 100)

    def get_success(self, d, by=0.0):
        if not isinstance(d, Deferred):
            return d
        self.pump(by=by)
        return self.successResultOf(d)

    def register_user(self, username, password, admin=False):
        """
        Register a user. Requires the Admin API be registered.

        Args:
            username (bytes/unicode): The user part of the new user.
            password (bytes/unicode): The password of the new user.
            admin (bool): Whether the user should be created as an admin
            or not.

        Returns:
            The MXID of the new user (unicode).
        """
        self.hs.config.registration_shared_secret = u"shared"

        # Create the user
        request, channel = self.make_request("GET", "/_matrix/client/r0/admin/register")
        self.render(request)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        nonce_str = b"\x00".join([username.encode('utf8'), password.encode('utf8')])
        if admin:
            nonce_str += b"\x00admin"
        else:
            nonce_str += b"\x00notadmin"

        want_mac.update(nonce.encode('ascii') + b"\x00" + nonce_str)
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": username,
                "password": password,
                "admin": admin,
                "mac": want_mac,
            }
        )
        request, channel = self.make_request(
            "POST", "/_matrix/client/r0/admin/register", body.encode('utf8')
        )
        self.render(request)
        self.assertEqual(channel.code, 200)

        user_id = channel.json_body["user_id"]
        return user_id

    def login(self, username, password, device_id=None):
        """
        Log in a user, and get an access token. Requires the Login API be
        registered.

        """
        body = {"type": "m.login.password", "user": username, "password": password}
        if device_id:
            body["device_id"] = device_id

        request, channel = self.make_request(
            "POST", "/_matrix/client/r0/login", json.dumps(body).encode('utf8')
        )
        self.render(request)
        self.assertEqual(channel.code, 200)

        access_token = channel.json_body["access_token"]
        return access_token