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
|
# -*- coding: utf-8 -*-
# test_streamtologger.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
tests for streamtologger
"""
try:
import unittest2 as unittest
except ImportError:
import unittest
import logging
import sys
from leap.bitmask.util.streamtologger import StreamToLogger
from leap.common.testing.basetest import BaseLeapTest
class SimpleLogHandler(logging.Handler):
"""
The simplest log handler that allows to check if the log was
delivered to the handler correctly.
"""
def __init__(self):
logging.Handler.__init__(self)
self._last_log = ""
self._last_log_level = ""
def emit(self, record):
self._last_log = record.getMessage()
self._last_log_level = record.levelno
def get_last_log(self):
"""
Returns the last logged message by this handler.
:return: the last logged message.
:rtype: str
"""
return self._last_log
def get_last_log_level(self):
"""
Returns the level of the last logged message by this handler.
:return: the last logged level.
:rtype: str
"""
return self._last_log_level
class StreamToLoggerTest(BaseLeapTest):
"""
StreamToLogger's tests.
NOTE: we may need to find a way to test the use case that an exception
is raised. I couldn't catch the output of an exception because the
test failed if some exception is raised.
"""
def setUp(self):
# Create the logger
level = logging.DEBUG
self.logger = logging.getLogger(name='test')
self.logger.setLevel(level)
# Simple log handler
self.handler = SimpleLogHandler()
self.logger.addHandler(self.handler)
# Preserve original values
self._sys_stdout = sys.stdout
self._sys_stderr = sys.stderr
# Create the handler
sys.stdout = StreamToLogger(self.logger, logging.DEBUG)
sys.stderr = StreamToLogger(self.logger, logging.ERROR)
def tearDown(self):
# Restore original values
sys.stdout = self._sys_stdout
sys.stderr = self._sys_stderr
def test_logger_starts_empty(self):
self.assertEqual(self.handler.get_last_log(), '')
def test_standard_output(self):
message = 'Test string'
print message
log = self.handler.get_last_log()
log_level = self.handler.get_last_log_level()
self.assertEqual(log, message)
self.assertEqual(log_level, logging.DEBUG)
def test_standard_error(self):
message = 'Test string'
sys.stderr.write(message)
log_level = self.handler.get_last_log_level()
log = self.handler.get_last_log()
self.assertEqual(log, message)
self.assertEqual(log_level, logging.ERROR)
if __name__ == "__main__":
unittest.main(verbosity=2)
|
