mirror of
https://github.com/element-hq/synapse.git
synced 2024-11-23 01:55:53 +03:00
132 lines
4.8 KiB
Python
132 lines
4.8 KiB
Python
from unittest.mock import Mock, call
|
|
|
|
from twisted.internet import defer, reactor
|
|
|
|
from synapse.logging.context import SENTINEL_CONTEXT, LoggingContext, current_context
|
|
from synapse.rest.client.transactions import CLEANUP_PERIOD_MS, HttpTransactionCache
|
|
from synapse.util import Clock
|
|
|
|
from tests import unittest
|
|
from tests.utils import MockClock
|
|
|
|
|
|
class HttpTransactionCacheTestCase(unittest.TestCase):
|
|
def setUp(self):
|
|
self.clock = MockClock()
|
|
self.hs = Mock()
|
|
self.hs.get_clock = Mock(return_value=self.clock)
|
|
self.hs.get_auth = Mock()
|
|
self.cache = HttpTransactionCache(self.hs)
|
|
|
|
self.mock_http_response = (200, "GOOD JOB!")
|
|
self.mock_key = "foo"
|
|
|
|
@defer.inlineCallbacks
|
|
def test_executes_given_function(self):
|
|
cb = Mock(return_value=defer.succeed(self.mock_http_response))
|
|
res = yield self.cache.fetch_or_execute(
|
|
self.mock_key, cb, "some_arg", keyword="arg"
|
|
)
|
|
cb.assert_called_once_with("some_arg", keyword="arg")
|
|
self.assertEqual(res, self.mock_http_response)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_deduplicates_based_on_key(self):
|
|
cb = Mock(return_value=defer.succeed(self.mock_http_response))
|
|
for i in range(3): # invoke multiple times
|
|
res = yield self.cache.fetch_or_execute(
|
|
self.mock_key, cb, "some_arg", keyword="arg", changing_args=i
|
|
)
|
|
self.assertEqual(res, self.mock_http_response)
|
|
# expect only a single call to do the work
|
|
cb.assert_called_once_with("some_arg", keyword="arg", changing_args=0)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_logcontexts_with_async_result(self):
|
|
@defer.inlineCallbacks
|
|
def cb():
|
|
yield Clock(reactor).sleep(0)
|
|
return "yay"
|
|
|
|
@defer.inlineCallbacks
|
|
def test():
|
|
with LoggingContext("c") as c1:
|
|
res = yield self.cache.fetch_or_execute(self.mock_key, cb)
|
|
self.assertIs(current_context(), c1)
|
|
self.assertEqual(res, "yay")
|
|
|
|
# run the test twice in parallel
|
|
d = defer.gatherResults([test(), test()])
|
|
self.assertIs(current_context(), SENTINEL_CONTEXT)
|
|
yield d
|
|
self.assertIs(current_context(), SENTINEL_CONTEXT)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_does_not_cache_exceptions(self):
|
|
"""Checks that, if the callback throws an exception, it is called again
|
|
for the next request.
|
|
"""
|
|
called = [False]
|
|
|
|
def cb():
|
|
if called[0]:
|
|
# return a valid result the second time
|
|
return defer.succeed(self.mock_http_response)
|
|
|
|
called[0] = True
|
|
raise Exception("boo")
|
|
|
|
with LoggingContext("test") as test_context:
|
|
try:
|
|
yield self.cache.fetch_or_execute(self.mock_key, cb)
|
|
except Exception as e:
|
|
self.assertEqual(e.args[0], "boo")
|
|
self.assertIs(current_context(), test_context)
|
|
|
|
res = yield self.cache.fetch_or_execute(self.mock_key, cb)
|
|
self.assertEqual(res, self.mock_http_response)
|
|
self.assertIs(current_context(), test_context)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_does_not_cache_failures(self):
|
|
"""Checks that, if the callback returns a failure, it is called again
|
|
for the next request.
|
|
"""
|
|
called = [False]
|
|
|
|
def cb():
|
|
if called[0]:
|
|
# return a valid result the second time
|
|
return defer.succeed(self.mock_http_response)
|
|
|
|
called[0] = True
|
|
return defer.fail(Exception("boo"))
|
|
|
|
with LoggingContext("test") as test_context:
|
|
try:
|
|
yield self.cache.fetch_or_execute(self.mock_key, cb)
|
|
except Exception as e:
|
|
self.assertEqual(e.args[0], "boo")
|
|
self.assertIs(current_context(), test_context)
|
|
|
|
res = yield self.cache.fetch_or_execute(self.mock_key, cb)
|
|
self.assertEqual(res, self.mock_http_response)
|
|
self.assertIs(current_context(), test_context)
|
|
|
|
@defer.inlineCallbacks
|
|
def test_cleans_up(self):
|
|
cb = Mock(return_value=defer.succeed(self.mock_http_response))
|
|
yield self.cache.fetch_or_execute(self.mock_key, cb, "an arg")
|
|
# should NOT have cleaned up yet
|
|
self.clock.advance_time_msec(CLEANUP_PERIOD_MS / 2)
|
|
|
|
yield self.cache.fetch_or_execute(self.mock_key, cb, "an arg")
|
|
# still using cache
|
|
cb.assert_called_once_with("an arg")
|
|
|
|
self.clock.advance_time_msec(CLEANUP_PERIOD_MS)
|
|
|
|
yield self.cache.fetch_or_execute(self.mock_key, cb, "an arg")
|
|
# no longer using cache
|
|
self.assertEqual(cb.call_count, 2)
|
|
self.assertEqual(cb.call_args_list, [call("an arg"), call("an arg")])
|