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
|
# Copyright (c) 2011 Citrix Systems, Inc.
#
# 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.
"""This modules stubs out functions in oslo_concurrency.processutils."""
import re
from eventlet import greenthread
from oslo_concurrency import processutils
from oslo_log import log as logging
import six
LOG = logging.getLogger(__name__)
_fake_execute_repliers = []
_fake_execute_log = []
def fake_execute_get_log():
return _fake_execute_log
def fake_execute_clear_log():
global _fake_execute_log
_fake_execute_log = []
def fake_execute_set_repliers(repliers):
"""Allows the client to configure replies to commands."""
global _fake_execute_repliers
_fake_execute_repliers = repliers
def fake_execute_default_reply_handler(*ignore_args, **ignore_kwargs):
"""A reply handler for commands that haven't been added to the reply list.
Returns empty strings for stdout and stderr.
"""
return '', ''
def fake_execute(*cmd_parts, **kwargs):
"""This function stubs out execute.
It optionally executes a preconfigured function to return expected data.
"""
global _fake_execute_repliers
process_input = kwargs.get('process_input', None)
check_exit_code = kwargs.get('check_exit_code', 0)
delay_on_retry = kwargs.get('delay_on_retry', True)
attempts = kwargs.get('attempts', 1)
run_as_root = kwargs.get('run_as_root', False)
cmd_str = ' '.join(str(part) for part in cmd_parts)
LOG.debug("Faking execution of cmd (subprocess): %s", cmd_str)
_fake_execute_log.append(cmd_str)
reply_handler = fake_execute_default_reply_handler
for fake_replier in _fake_execute_repliers:
if re.match(fake_replier[0], cmd_str):
reply_handler = fake_replier[1]
LOG.debug('Faked command matched %s', fake_replier[0])
break
if isinstance(reply_handler, six.string_types):
# If the reply handler is a string, return it as stdout
reply = reply_handler, ''
else:
try:
# Alternative is a function, so call it
reply = reply_handler(cmd_parts,
process_input=process_input,
delay_on_retry=delay_on_retry,
attempts=attempts,
run_as_root=run_as_root,
check_exit_code=check_exit_code)
except processutils.ProcessExecutionError as e:
LOG.debug('Faked command raised an exception %s', e)
raise
LOG.debug("Reply to faked command is stdout='%(stdout)s' "
"stderr='%(stderr)s'", {'stdout': reply[0], 'stderr': reply[1]})
# Replicate the sleep call in the real function
greenthread.sleep(0)
return reply
def stub_out_processutils_execute(test):
fake_execute_set_repliers([])
fake_execute_clear_log()
test.stub_out('oslo_concurrency.processutils.execute', fake_execute)
|
