synapse-product/tests/utils.py

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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
#
# 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 hashlib
from inspect import getcallargs
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import urllib
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import urlparse
from mock import Mock, patch
from twisted.internet import defer, reactor
from synapse.api.errors import CodeMessageException, cs_error
from synapse.federation.transport import server
from synapse.http.server import HttpServer
from synapse.server import HomeServer
from synapse.storage import PostgresEngine
from synapse.storage.engines import create_engine
from synapse.storage.prepare_database import prepare_database
from synapse.util.logcontext import LoggingContext
from synapse.util.ratelimitutils import FederationRateLimiter
# set this to True to run the tests against postgres instead of sqlite.
# It requires you to have a local postgres database called synapse_test, within
# which ALL TABLES WILL BE DROPPED
USE_POSTGRES_FOR_TESTS = False
@defer.inlineCallbacks
def setup_test_homeserver(name="test", datastore=None, config=None, **kargs):
"""Setup a homeserver suitable for running tests against. Keyword arguments
are passed to the Homeserver constructor. If no datastore is supplied a
datastore backed by an in-memory sqlite db will be given to the HS.
"""
if config is None:
config = Mock()
config.signing_key = [MockKey()]
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config.event_cache_size = 1
config.enable_registration = True
config.macaroon_secret_key = "not even a little secret"
config.expire_access_token = False
config.server_name = name
config.trusted_third_party_id_servers = []
config.room_invite_state_types = []
config.password_providers = []
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config.worker_replication_url = ""
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config.worker_app = None
config.email_enable_notifs = False
config.block_non_admin_invites = False
config.federation_domain_whitelist = None
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config.user_directory_search_all_users = False
# disable user directory updates, because they get done in the
# background, which upsets the test runner.
config.update_user_directory = False
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config.use_frozen_dicts = True
config.ldap_enabled = False
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if "clock" not in kargs:
kargs["clock"] = MockClock()
if USE_POSTGRES_FOR_TESTS:
config.database_config = {
"name": "psycopg2",
"args": {
"database": "synapse_test",
"cp_min": 1,
"cp_max": 5,
},
}
else:
config.database_config = {
"name": "sqlite3",
"args": {
"database": ":memory:",
"cp_min": 1,
"cp_max": 1,
},
}
db_engine = create_engine(config.database_config)
# we need to configure the connection pool to run the on_new_connection
# function, so that we can test code that uses custom sqlite functions
# (like rank).
config.database_config["args"]["cp_openfun"] = db_engine.on_new_connection
if datastore is None:
hs = HomeServer(
name, config=config,
db_config=config.database_config,
version_string="Synapse/tests",
database_engine=db_engine,
room_list_handler=object(),
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tls_server_context_factory=Mock(),
**kargs
)
db_conn = hs.get_db_conn()
# make sure that the database is empty
if isinstance(db_engine, PostgresEngine):
cur = db_conn.cursor()
cur.execute("SELECT tablename FROM pg_tables where schemaname='public'")
rows = cur.fetchall()
for r in rows:
cur.execute("DROP TABLE %s CASCADE" % r[0])
yield prepare_database(db_conn, db_engine, config)
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hs.setup()
else:
hs = HomeServer(
name, db_pool=None, datastore=datastore, config=config,
version_string="Synapse/tests",
database_engine=db_engine,
room_list_handler=object(),
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tls_server_context_factory=Mock(),
**kargs
)
# bcrypt is far too slow to be doing in unit tests
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# Need to let the HS build an auth handler and then mess with it
# because AuthHandler's constructor requires the HS, so we can't make one
# beforehand and pass it in to the HS's constructor (chicken / egg)
hs.get_auth_handler().hash = lambda p: hashlib.md5(p).hexdigest()
hs.get_auth_handler().validate_hash = lambda p, h: hashlib.md5(p).hexdigest() == h
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fed = kargs.get("resource_for_federation", None)
if fed:
server.register_servlets(
hs,
resource=fed,
authenticator=server.Authenticator(hs),
ratelimiter=FederationRateLimiter(
hs.get_clock(),
window_size=hs.config.federation_rc_window_size,
sleep_limit=hs.config.federation_rc_sleep_limit,
sleep_msec=hs.config.federation_rc_sleep_delay,
reject_limit=hs.config.federation_rc_reject_limit,
concurrent_requests=hs.config.federation_rc_concurrent
),
)
defer.returnValue(hs)
def get_mock_call_args(pattern_func, mock_func):
""" Return the arguments the mock function was called with interpreted
by the pattern functions argument list.
"""
invoked_args, invoked_kargs = mock_func.call_args
return getcallargs(pattern_func, *invoked_args, **invoked_kargs)
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def mock_getRawHeaders(headers=None):
headers = headers if headers is not None else {}
def getRawHeaders(name, default=None):
return headers.get(name, default)
return getRawHeaders
# This is a mock /resource/ not an entire server
class MockHttpResource(HttpServer):
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def __init__(self, prefix=""):
self.callbacks = [] # 3-tuple of method/pattern/function
self.prefix = prefix
def trigger_get(self, path):
return self.trigger("GET", path, None)
@patch('twisted.web.http.Request')
@defer.inlineCallbacks
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def trigger(self, http_method, path, content, mock_request, federation_auth=False):
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""" Fire an HTTP event.
Args:
http_method : The HTTP method
path : The HTTP path
content : The HTTP body
mock_request : Mocked request to pass to the event so it can get
content.
Returns:
A tuple of (code, response)
Raises:
KeyError If no event is found which will handle the path.
"""
path = self.prefix + path
# annoyingly we return a twisted http request which has chained calls
# to get at the http content, hence mock it here.
mock_content = Mock()
config = {'read.return_value': content}
mock_content.configure_mock(**config)
mock_request.content = mock_content
mock_request.method = http_method
mock_request.uri = path
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mock_request.getClientIP.return_value = "-"
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headers = {}
if federation_auth:
headers[b"Authorization"] = ["X-Matrix origin=test,key=,sig="]
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mock_request.requestHeaders.getRawHeaders = mock_getRawHeaders(headers)
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# return the right path if the event requires it
mock_request.path = path
# add in query params to the right place
try:
mock_request.args = urlparse.parse_qs(path.split('?')[1])
mock_request.path = path.split('?')[0]
path = mock_request.path
except Exception:
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pass
for (method, pattern, func) in self.callbacks:
if http_method != method:
continue
matcher = pattern.match(path)
if matcher:
try:
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args = [
urllib.unquote(u).decode("UTF-8")
for u in matcher.groups()
]
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(code, response) = yield func(
mock_request,
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*args
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)
defer.returnValue((code, response))
except CodeMessageException as e:
defer.returnValue((e.code, cs_error(e.msg, code=e.errcode)))
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raise KeyError("No event can handle %s" % path)
def register_paths(self, method, path_patterns, callback):
for path_pattern in path_patterns:
self.callbacks.append((method, path_pattern, callback))
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class MockKey(object):
alg = "mock_alg"
version = "mock_version"
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signature = b"\x9a\x87$"
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@property
def verify_key(self):
return self
def sign(self, message):
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return self
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def verify(self, message, sig):
assert sig == b"\x9a\x87$"
class MockClock(object):
now = 1000
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def __init__(self):
# list of lists of [absolute_time, callback, expired] in no particular
# order
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self.timers = []
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self.loopers = []
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def time(self):
return self.now
def time_msec(self):
return self.time() * 1000
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def call_later(self, delay, callback, *args, **kwargs):
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current_context = LoggingContext.current_context()
def wrapped_callback():
LoggingContext.thread_local.current_context = current_context
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callback(*args, **kwargs)
t = [self.now + delay, wrapped_callback, False]
self.timers.append(t)
return t
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def looping_call(self, function, interval):
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self.loopers.append([function, interval / 1000., self.now])
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def cancel_call_later(self, timer, ignore_errs=False):
if timer[2]:
if not ignore_errs:
raise Exception("Cannot cancel an expired timer")
timer[2] = True
self.timers = [t for t in self.timers if t != timer]
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# For unit testing
def advance_time(self, secs):
self.now += secs
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timers = self.timers
self.timers = []
for t in timers:
time, callback, expired = t
if expired:
raise Exception("Timer already expired")
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if self.now >= time:
t[2] = True
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callback()
else:
self.timers.append(t)
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for looped in self.loopers:
func, interval, last = looped
if last + interval < self.now:
func()
looped[2] = self.now
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def advance_time_msec(self, ms):
self.advance_time(ms / 1000.)
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def time_bound_deferred(self, d, *args, **kwargs):
# We don't bother timing things out for now.
return d
def _format_call(args, kwargs):
return ", ".join(
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["%r" % (a) for a in args] +
["%s=%r" % (k, v) for k, v in kwargs.items()]
)
class DeferredMockCallable(object):
"""A callable instance that stores a set of pending call expectations and
return values for them. It allows a unit test to assert that the given set
of function calls are eventually made, by awaiting on them to be called.
"""
def __init__(self):
self.expectations = []
self.calls = []
def __call__(self, *args, **kwargs):
self.calls.append((args, kwargs))
if not self.expectations:
raise ValueError("%r has no pending calls to handle call(%s)" % (
self, _format_call(args, kwargs))
)
for (call, result, d) in self.expectations:
if args == call[1] and kwargs == call[2]:
d.callback(None)
return result
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failure = AssertionError("Was not expecting call(%s)" % (
_format_call(args, kwargs)
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))
for _, _, d in self.expectations:
try:
d.errback(failure)
except Exception:
pass
raise failure
def expect_call_and_return(self, call, result):
self.expectations.append((call, result, defer.Deferred()))
@defer.inlineCallbacks
def await_calls(self, timeout=1000):
deferred = defer.DeferredList(
[d for _, _, d in self.expectations],
fireOnOneErrback=True
)
timer = reactor.callLater(
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timeout / 1000,
deferred.errback,
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AssertionError("%d pending calls left: %s" % (
len([e for e in self.expectations if not e[2].called]),
[e for e in self.expectations if not e[2].called]
))
)
yield deferred
timer.cancel()
self.calls = []
def assert_had_no_calls(self):
if self.calls:
calls = self.calls
self.calls = []
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raise AssertionError(
"Expected not to received any calls, got:\n" + "\n".join([
"call(%s)" % _format_call(c[0], c[1]) for c in calls
])
)