Use unittest.mock instead of third party mock

Now that we no longer support py27, we can use the standard library
unittest.mock module instead of the third party mock lib.

Change-Id: I24c8926bc7a571b45af77c497f0791d101ebbc12
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

os_win/tests/unit/test_base.py

@@ -14,7 +14,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 from oslotest import base
 from oslotest import mock_fixture
 from six.moves import builtins

os_win/tests/unit/test_hacking.py

@@ -16,8 +16,8 @@
 
 import os
 import textwrap
+from unittest import mock
 
-import mock
 import pycodestyle
 
 from os_win._hacking import checks

os_win/tests/unit/test_processutils.py

@@ -14,8 +14,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win.tests.unit import test_base
 from os_win.utils import processutils

os_win/tests/unit/test_utils.py

@@ -18,8 +18,9 @@
 Unit tests for the os_win._utils module.
 """
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win import _utils
 from os_win import constants

os_win/tests/unit/test_utilsfactory.py

@@ -18,8 +18,8 @@ Unit tests for the Hyper-V utils factory.
 """
 
 import inspect
+from unittest import mock
 
-import mock
 from oslo_config import cfg
 from oslo_utils import importutils
 

os_win/tests/unit/utils/compute/test_clusapi_utils.py

@@ -14,9 +14,9 @@
 #    under the License.
 
 import ctypes
+from unittest import mock
 
 import ddt
-import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/compute/test_clusterutils.py

@@ -14,9 +14,9 @@
 #    under the License.
 
 import ctypes
+from unittest import mock
 
 import ddt
-import mock
 from six.moves import queue
 
 from os_win import constants

os_win/tests/unit/utils/compute/test_livemigrationutils.py

@@ -14,9 +14,9 @@
 #    under the License.
 
 import platform
+from unittest import mock
 
 import ddt
-import mock
 
 from os_win import exceptions
 from os_win.tests.unit import test_base

os_win/tests/unit/utils/compute/test_migrationutils.py

@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/compute/test_rdpconsoleutils.py

@@ -12,7 +12,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from os_win.tests.unit import test_base
 from os_win.utils.compute import rdpconsoleutils

os_win/tests/unit/utils/compute/test_vmutils.py

@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 from six.moves import range  # noqa
 
 from os_win import constants

os_win/tests/unit/utils/compute/test_vmutils10.py

@@ -12,8 +12,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 import six
 
 from os_win import constants

os_win/tests/unit/utils/dns/test_dnsutils.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/io/test_ioutils.py

@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.import mock
 
+from unittest import mock
+
 import ddt
-import mock
 import six
 
 from os_win import constants

os_win/tests/unit/utils/io/test_namedpipe.py

@@ -14,8 +14,8 @@
 #    under the License.
 
 import errno
+from unittest import mock
 
-import mock
 from six.moves import builtins
 
 from os_win import constants

os_win/tests/unit/utils/metrics/test_metricsutils.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from os_win import exceptions
 from os_win.tests.unit import test_base

os_win/tests/unit/utils/network/test_networkutils.py

@@ -12,8 +12,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 from oslo_utils import units
 
 from os_win import constants

os_win/tests/unit/utils/network/test_nvgreutils.py

@@ -17,7 +17,7 @@
 Unit tests for the Hyper-V NVGRE support.
 """
 
-import mock
+from unittest import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/storage/initiator/test_fc_utils.py

@@ -14,8 +14,8 @@
 #    under the License.
 
 import ctypes
+from unittest import mock
 
-import mock
 import six
 
 from os_win import _utils

os_win/tests/unit/utils/storage/initiator/test_iscsi_utils.py

@@ -16,9 +16,9 @@
 
 import collections
 import ctypes
+from unittest import mock
 
 import ddt
-import mock
 import six
 
 from os_win import _utils

os_win/tests/unit/utils/storage/target/test_iscsi_target_utils.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/storage/test_diskutils.py

@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win import _utils
 from os_win import constants

os_win/tests/unit/utils/storage/test_smbutils.py

@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win import exceptions
 from os_win.tests.unit import test_base

os_win/tests/unit/utils/storage/virtdisk/test_vhdutils.py

@@ -14,9 +14,9 @@
 
 import ctypes
 import os
+from unittest import mock
 
 import ddt
-import mock
 import six
 
 from os_win import constants

os_win/tests/unit/utils/test_aclutils.py

@@ -13,8 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win.tests.unit import test_base
 from os_win.utils import _acl_utils

os_win/tests/unit/utils/test_baseutils.py

@@ -12,7 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import six
 
 import imp

os_win/tests/unit/utils/test_hostutils.py

@@ -12,7 +12,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/test_hostutils10.py

@@ -14,8 +14,8 @@
 #    under the License.
 
 import re
+from unittest import mock
 
-import mock
 
 from os_win import exceptions
 from os_win.tests.unit import test_base

os_win/tests/unit/utils/test_jobutils.py

@@ -12,8 +12,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/test_pathutils.py

@@ -15,9 +15,9 @@
 import ctypes
 import os
 import shutil
+from unittest import mock
 
 import ddt
-import mock
 
 from os_win import constants
 from os_win import exceptions

os_win/tests/unit/utils/test_win32utils.py

@@ -14,8 +14,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from unittest import mock
+
 import ddt
-import mock
 
 from os_win import _utils
 from os_win import exceptions

os_win/tests/unit/utils/test_wqlutils.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from os_win import exceptions
 from os_win.tests.unit import test_base