/usr/lib/python3/dist-packages/os_win/tests/utils/test_win32utils.py is in python3-os-win 1.2.0-2.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | # Copyright 2015 Cloudbase Solutions Srl
#
# All Rights Reserved.
#
# 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 mock
from oslotest import base
from os_win import exceptions
from os_win.utils import win32utils
class Win32UtilsTestCase(base.BaseTestCase):
def setUp(self):
super(Win32UtilsTestCase, self).setUp()
self._setup_lib_mocks()
self._win32_utils = win32utils.Win32Utils()
self.addCleanup(mock.patch.stopall)
def _setup_lib_mocks(self):
self._ctypes = mock.Mock()
# This is used in order to easily make assertions on the variables
# passed by reference.
self._ctypes.byref = lambda x: (x, "byref")
self._ctypes_patcher = mock.patch.multiple(
win32utils, ctypes=self._ctypes)
self._ctypes_patcher.start()
mock.patch.multiple(win32utils,
kernel32=mock.DEFAULT,
wintypes=mock.DEFAULT,
create=True).start()
@mock.patch.object(win32utils.Win32Utils, 'get_error_message')
@mock.patch.object(win32utils.Win32Utils, 'get_last_error')
def _test_run_and_check_output(self, mock_get_last_err, mock_get_err_msg,
ret_val=None, expected_exc=None,
**kwargs):
mock_func = mock.Mock()
mock_func.return_value = ret_val
self._ctypes_patcher.stop()
if expected_exc:
self.assertRaises(expected_exc,
self._win32_utils.run_and_check_output,
mock_func,
mock.sentinel.arg,
kwarg=mock.sentinel.kwarg,
**kwargs)
else:
actual_ret_val = self._win32_utils.run_and_check_output(
mock_func,
mock.sentinel.arg,
kwarg=mock.sentinel.kwarg,
**kwargs)
self.assertEqual(ret_val, actual_ret_val)
mock_func.assert_called_once_with(mock.sentinel.arg,
kwarg=mock.sentinel.kwarg)
return mock_get_last_err, mock_get_err_msg
def test_run_and_check_output(self):
self._test_run_and_check_output(ret_val=0)
def test_run_and_check_output_fail_on_nonzero_ret_val(self):
ret_val = 1
(mock_get_last_err,
mock_get_err_msg) = self._test_run_and_check_output(
ret_val=ret_val,
expected_exc=exceptions.VHDWin32APIException,
failure_exc=exceptions.VHDWin32APIException)
mock_get_err_msg.assert_called_once_with(ret_val)
def test_run_and_check_output_explicit_error_ret_vals(self):
ret_val = 1
error_ret_vals = [ret_val]
(mock_get_last_err,
mock_get_err_msg) = self._test_run_and_check_output(
ret_val=ret_val,
error_ret_vals=error_ret_vals,
ret_val_is_err_code=False,
expected_exc=exceptions.Win32Exception)
mock_get_err_msg.assert_called_once_with(
win32utils.ctypes.c_ulong(mock_get_last_err).value)
def test_run_and_check_output_ignored_error(self):
ret_val = 1
ignored_err_codes = [ret_val]
self._test_run_and_check_output(ret_val=ret_val,
ignored_error_codes=ignored_err_codes)
def test_run_and_check_output_kernel32_lib_func(self):
ret_val = 0
self._test_run_and_check_output(ret_val=ret_val,
expected_exc=exceptions.Win32Exception,
kernel32_lib_func=True)
def test_run_and_check_output_with_err_msg_dict(self):
self._ctypes_patcher.stop()
err_code = 1
err_msg = 'fake_err_msg'
err_msg_dict = {err_code: err_msg}
mock_func = mock.Mock()
mock_func.return_value = err_code
try:
self._win32_utils.run_and_check_output(mock_func,
mock.sentinel.arg,
error_msg_src=err_msg_dict)
except Exception as ex:
self.assertIsInstance(ex, exceptions.Win32Exception)
self.assertIn(err_msg, ex.message)
def test_get_error_message(self):
err_msg = self._win32_utils.get_error_message(mock.sentinel.err_code)
fake_msg_buff = win32utils.ctypes.c_char_p.return_value
expected_flags = (win32utils.FORMAT_MESSAGE_FROM_SYSTEM |
win32utils.FORMAT_MESSAGE_ALLOCATE_BUFFER |
win32utils.FORMAT_MESSAGE_IGNORE_INSERTS)
win32utils.kernel32.FormatMessageA.assert_called_once_with(
expected_flags, None, mock.sentinel.err_code, 0,
win32utils.ctypes.byref(fake_msg_buff), 0, None)
self.assertEqual(fake_msg_buff.value, err_msg)
def test_get_last_error(self):
last_err = self._win32_utils.get_last_error()
self.assertEqual(win32utils.kernel32.GetLastError.return_value,
last_err)
win32utils.kernel32.SetLastError.assert_called_once_with(0)
def test_hresult_to_err_code(self):
# This could differ based on the error source.
# Only the last 2 bytes of the hresult the error code.
fake_file_exists_hres = -0x7ff8ffb0
file_exists_err_code = 0x50
ret_val = self._win32_utils.hresult_to_err_code(fake_file_exists_hres)
self.assertEqual(file_exists_err_code, ret_val)
@mock.patch.object(win32utils.Win32Utils, 'get_com_error_hresult')
@mock.patch.object(win32utils.Win32Utils, 'hresult_to_err_code')
def test_get_com_err_code(self, mock_hres_to_err_code, mock_get_hresult):
ret_val = self._win32_utils.get_com_err_code(mock.sentinel.com_err)
self.assertEqual(mock_hres_to_err_code.return_value, ret_val)
mock_get_hresult.assert_called_once_with(mock.sentinel.com_err)
mock_hres_to_err_code.assert_called_once_with(
mock_get_hresult.return_value)
def test_get_com_error_hresult(self):
self._ctypes_patcher.stop()
fake_hres = -5
expected_hres = (1 << 32) + fake_hres
mock_excepinfo = [None] * 5 + [fake_hres]
mock_com_err = mock.Mock(excepinfo=mock_excepinfo)
ret_val = self._win32_utils.get_com_error_hresult(mock_com_err)
self.assertEqual(expected_hres, ret_val)
def get_com_error_hresult_missing_excepinfo(self):
ret_val = self._win32_utils.get_com_error_hresult(None)
self.assertIsNone(ret_val)
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