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
|
###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Tavendo GmbH
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################
import pytest
import txaio
from util import run_once
def test_as_future_immediate(framework):
'''
Returning an immediate value from as_future
'''
errors = []
results = []
calls = []
def method(*args, **kw):
calls.append((args, kw))
return 42
f = txaio.as_future(method, 1, 2, 3, key='word')
def cb(x):
results.append(x)
def errback(f):
errors.append(f)
txaio.add_callbacks(f, cb, errback)
run_once()
assert len(results) == 1
assert len(errors) == 0
assert results[0] == 42
assert calls[0] == ((1, 2, 3), dict(key='word'))
def test_as_future_immediate_none(framework):
'''
Returning None immediately from as_future
'''
errors = []
results = []
calls = []
def method(*args, **kw):
calls.append((args, kw))
return None
f = txaio.as_future(method, 1, 2, 3, key='word')
def cb(x):
results.append(x)
def errback(f):
errors.append(f)
txaio.add_callbacks(f, cb, errback)
run_once()
assert len(results) == 1
assert len(errors) == 0
assert results[0] is None
assert calls[0] == ((1, 2, 3), dict(key='word'))
def test_as_future_coroutine(framework):
'''
call a coroutine (asyncio)
'''
pytest.importorskip('asyncio')
# can import asyncio on python3.4, but might still be using
# twisted
if not txaio.using_asyncio:
return
errors = []
results = []
calls = []
from asyncio import coroutine
@coroutine
def method(*args, **kw):
calls.append((args, kw))
return 42
f = txaio.as_future(method, 1, 2, 3, key='word')
def cb(x):
results.append(x)
def errback(f):
errors.append(f)
txaio.add_callbacks(f, cb, errback)
run_once()
run_once()
assert len(results) == 1
assert len(errors) == 0
assert results[0] == 42
assert calls[0] == ((1, 2, 3), dict(key='word'))
def test_as_future_exception(framework):
'''
Raises an exception from as_future
'''
errors = []
results = []
calls = []
exception = RuntimeError("sadness")
def method(*args, **kw):
calls.append((args, kw))
raise exception
f = txaio.as_future(method, 1, 2, 3, key='word')
def cb(x):
results.append(x)
def errback(f):
errors.append(f)
txaio.add_callbacks(f, cb, errback)
run_once()
assert len(results) == 0
assert len(errors) == 1
assert errors[0].value == exception
assert calls[0] == ((1, 2, 3), dict(key='word'))
def test_as_future_recursive(framework):
'''
Returns another Future from as_future
'''
errors = []
results = []
calls = []
f1 = txaio.create_future_success(42)
def method(*args, **kw):
calls.append((args, kw))
return f1
f0 = txaio.as_future(method, 1, 2, 3, key='word')
def cb(x):
results.append(x)
def errback(f):
errors.append(f)
txaio.add_callbacks(f0, cb, errback)
run_once()
assert len(results) == 1
assert len(errors) == 0
assert results[0] == 42
assert calls[0] == ((1, 2, 3), dict(key='word'))
|
