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
|
import twisted.python.failure
from twisted.internet import defer, reactor
from synapse.logging.context import (
LoggingContext,
PreserveLoggingContext,
make_deferred_yieldable,
nested_logging_context,
run_in_background,
)
from synapse.util import Clock
from .. import unittest
class LoggingContextTestCase(unittest.TestCase):
def _check_test_key(self, value):
self.assertEquals(LoggingContext.current_context().request, value)
def test_with_context(self):
with LoggingContext() as context_one:
context_one.request = "test"
self._check_test_key("test")
@defer.inlineCallbacks
def test_sleep(self):
clock = Clock(reactor)
@defer.inlineCallbacks
def competing_callback():
with LoggingContext() as competing_context:
competing_context.request = "competing"
yield clock.sleep(0)
self._check_test_key("competing")
reactor.callLater(0, competing_callback)
with LoggingContext() as context_one:
context_one.request = "one"
yield clock.sleep(0)
self._check_test_key("one")
def _test_run_in_background(self, function):
sentinel_context = LoggingContext.current_context()
callback_completed = [False]
with LoggingContext() as context_one:
context_one.request = "one"
# fire off function, but don't wait on it.
d2 = run_in_background(function)
def cb(res):
callback_completed[0] = True
return res
d2.addCallback(cb)
self._check_test_key("one")
# now wait for the function under test to have run, and check that
# the logcontext is left in a sane state.
d2 = defer.Deferred()
def check_logcontext():
if not callback_completed[0]:
reactor.callLater(0.01, check_logcontext)
return
# make sure that the context was reset before it got thrown back
# into the reactor
try:
self.assertIs(LoggingContext.current_context(), sentinel_context)
d2.callback(None)
except BaseException:
d2.errback(twisted.python.failure.Failure())
reactor.callLater(0.01, check_logcontext)
# test is done once d2 finishes
return d2
def test_run_in_background_with_blocking_fn(self):
@defer.inlineCallbacks
def blocking_function():
yield Clock(reactor).sleep(0)
return self._test_run_in_background(blocking_function)
def test_run_in_background_with_non_blocking_fn(self):
@defer.inlineCallbacks
def nonblocking_function():
with PreserveLoggingContext():
yield defer.succeed(None)
return self._test_run_in_background(nonblocking_function)
def test_run_in_background_with_chained_deferred(self):
# a function which returns a deferred which looks like it has been
# called, but is actually paused
def testfunc():
return make_deferred_yieldable(_chained_deferred_function())
return self._test_run_in_background(testfunc)
def test_run_in_background_with_coroutine(self):
async def testfunc():
self._check_test_key("one")
d = Clock(reactor).sleep(0)
self.assertIs(LoggingContext.current_context(), LoggingContext.sentinel)
await d
self._check_test_key("one")
return self._test_run_in_background(testfunc)
def test_run_in_background_with_nonblocking_coroutine(self):
async def testfunc():
self._check_test_key("one")
return self._test_run_in_background(testfunc)
@defer.inlineCallbacks
def test_make_deferred_yieldable(self):
# a function which retuns an incomplete deferred, but doesn't follow
# the synapse rules.
def blocking_function():
d = defer.Deferred()
reactor.callLater(0, d.callback, None)
return d
sentinel_context = LoggingContext.current_context()
with LoggingContext() as context_one:
context_one.request = "one"
d1 = make_deferred_yieldable(blocking_function())
# make sure that the context was reset by make_deferred_yieldable
self.assertIs(LoggingContext.current_context(), sentinel_context)
yield d1
# now it should be restored
self._check_test_key("one")
@defer.inlineCallbacks
def test_make_deferred_yieldable_with_chained_deferreds(self):
sentinel_context = LoggingContext.current_context()
with LoggingContext() as context_one:
context_one.request = "one"
d1 = make_deferred_yieldable(_chained_deferred_function())
# make sure that the context was reset by make_deferred_yieldable
self.assertIs(LoggingContext.current_context(), sentinel_context)
yield d1
# now it should be restored
self._check_test_key("one")
@defer.inlineCallbacks
def test_make_deferred_yieldable_on_non_deferred(self):
"""Check that make_deferred_yieldable does the right thing when its
argument isn't actually a deferred"""
with LoggingContext() as context_one:
context_one.request = "one"
d1 = make_deferred_yieldable("bum")
self._check_test_key("one")
r = yield d1
self.assertEqual(r, "bum")
self._check_test_key("one")
def test_nested_logging_context(self):
with LoggingContext(request="foo"):
nested_context = nested_logging_context(suffix="bar")
self.assertEqual(nested_context.request, "foo-bar")
# a function which returns a deferred which has been "called", but
# which had a function which returned another incomplete deferred on
# its callback list, so won't yet call any other new callbacks.
def _chained_deferred_function():
d = defer.succeed(None)
def cb(res):
d2 = defer.Deferred()
reactor.callLater(0, d2.callback, res)
return d2
d.addCallback(cb)
return d
|
