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
|
##
# Copyright (c) 2013 Yury Selivanov
# License: Apache 2.0
##
from trollius import From, Return
from trollius.test_utils import TestCase
import greenio
import trollius
try:
import asyncio
except ImportError:
asyncio = None
class TrolliusTaskTests(TestCase):
def setUp(self):
policy = greenio.GreenTrolliusEventLoopPolicy()
trollius.set_event_loop_policy(policy)
if asyncio is not None:
asyncio.set_event_loop_policy(policy)
self.loop = policy.new_event_loop()
policy.set_event_loop(self.loop)
def tearDown(self):
self.loop.close()
trollius.set_event_loop_policy(None)
def test_task_yield_from_plain(self):
@trollius.coroutine
def bar():
yield From(None)
raise Return(30)
@trollius.coroutine
def foo():
bar_result = greenio.yield_from(bar())
return bar_result + 12
@greenio.task
def test():
res = yield From(foo())
raise Return(res)
fut = test()
self.loop.run_until_complete(fut)
self.assertEqual(fut.result(), 42)
def test_task_yield_from_exception_propagation(self):
non_local = {'CHK': 0}
@trollius.coroutine
def bar():
yield From(None)
yield From(None)
1/0
@greenio.task
def foo():
greenio.yield_from(bar())
@trollius.coroutine
def test():
try:
res = yield From(foo())
raise Return(res)
except ZeroDivisionError:
non_local['CHK'] += 1
self.loop.run_until_complete(test())
self.assertEqual(non_local['CHK'], 1)
def test_task_yield_from_coroutine(self):
@trollius.coroutine
def bar():
yield From(None)
raise Return(5)
@greenio.task
def foo():
return greenio.yield_from(bar())
fut = foo()
self.loop.run_until_complete(fut)
self.assertEqual(fut.result(), 5)
def test_task_yield_from_invalid(self):
def bar():
pass
err_msg = (r"^greenlet.yield_from was supposed to receive "
r"only Futures, got .* in task .*$")
@trollius.coroutine
def foo():
with self.assertRaisesRegex(RuntimeError, err_msg):
greenio.yield_from(bar)
self.loop.run_until_complete(foo())
|
