78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
#!/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 unittest
|
|
|
|
import mock
|
|
|
|
from cliff import utils
|
|
from cliff.tests import base
|
|
|
|
|
|
class TestTerminalWidth(base.TestBase):
|
|
|
|
def test(self):
|
|
width = utils.terminal_width(sys.stdout)
|
|
# Results are specific to the execution environment, so only assert
|
|
# that no error is raised.
|
|
if width is not None:
|
|
self.assertIsInstance(width, int)
|
|
|
|
@unittest.skipIf(not hasattr(os, 'get_terminal_size'),
|
|
'only needed for python 3.3 onwards')
|
|
@mock.patch('cliff.utils.os')
|
|
def test_get_terminal_size(self, mock_os):
|
|
ts = os.terminal_size((10, 5))
|
|
mock_os.get_terminal_size.return_value = ts
|
|
width = utils.terminal_width(sys.stdout)
|
|
self.assertEqual(10, width)
|
|
mock_os.get_terminal_size.side_effect = OSError()
|
|
width = utils.terminal_width(sys.stdout)
|
|
self.assertIs(None, width)
|
|
|
|
@unittest.skipIf(hasattr(os, 'get_terminal_size'),
|
|
'only needed for python 3.2 and before')
|
|
@mock.patch('fcntl.ioctl')
|
|
def test_ioctl(self, mock_ioctl):
|
|
mock_ioctl.return_value = struct.pack('hhhh', 57, 101, 0, 0)
|
|
width = utils.terminal_width(sys.stdout)
|
|
self.assertEqual(101, width)
|
|
mock_ioctl.side_effect = IOError()
|
|
width = utils.terminal_width(sys.stdout)
|
|
self.assertIs(None, width)
|
|
|
|
@unittest.skipIf(hasattr(os, 'get_terminal_size'),
|
|
'only needed for python 3.2 and before')
|
|
@mock.patch('cliff.utils.ctypes')
|
|
@mock.patch('sys.platform', 'win32')
|
|
def test_windows(self, mock_ctypes):
|
|
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)
|
|
self.assertEqual(101, width)
|
|
|
|
mock_ctypes.windll.kernel32.GetConsoleScreenBufferInfo.return_value = 0
|
|
|
|
width = utils.terminal_width(sys.stdout)
|
|
self.assertIs(None, width)
|
|
|
|
width = utils.terminal_width('foo')
|
|
self.assertIs(None, width)
|