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
|
#!/usr/bin/env python
#
# 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.
import os
import struct
import sys
import mock
import nose
from cliff import utils
def test_utils_terminal_width():
width = utils.terminal_width(sys.stdout)
# Results are specific to the execution environment, so only assert
# that no error is raised.
assert width is None or isinstance(width, int)
@mock.patch('cliff.utils.os')
def test_utils_terminal_width_get_terminal_size(mock_os):
if not hasattr(os, 'get_terminal_size'):
raise nose.SkipTest('only needed for python 3.3 onwards')
ts = os.terminal_size((10, 5))
mock_os.get_terminal_size.return_value = ts
width = utils.terminal_width(sys.stdout)
assert width == 10
mock_os.get_terminal_size.side_effect = OSError()
width = utils.terminal_width(sys.stdout)
assert width is None
@mock.patch('fcntl.ioctl')
def test_utils_terminal_width_ioctl(mock_ioctl):
if hasattr(os, 'get_terminal_size'):
raise nose.SkipTest('only needed for python 3.2 and before')
mock_ioctl.return_value = struct.pack('hhhh', 57, 101, 0, 0)
width = utils.terminal_width(sys.stdout)
assert width == 101
mock_ioctl.side_effect = IOError()
width = utils.terminal_width(sys.stdout)
assert width is None
@mock.patch('cliff.utils.ctypes')
@mock.patch('sys.platform', 'win32')
def test_utils_terminal_width_windows(mock_ctypes):
if hasattr(os, 'get_terminal_size'):
raise nose.SkipTest('only needed for python 3.2 and before')
mock_ctypes.create_string_buffer.return_value.raw = struct.pack(
'hhhhHhhhhhh', 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
mock_ctypes.windll.kernel32.GetStdHandle.return_value = -11
mock_ctypes.windll.kernel32.GetConsoleScreenBufferInfo.return_value = 1
width = utils.terminal_width(sys.stdout)
assert width == 101
mock_ctypes.windll.kernel32.GetConsoleScreenBufferInfo.return_value = 0
width = utils.terminal_width(sys.stdout)
assert width is None
width = utils.terminal_width('foo')
assert width is None
|
