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: I5cf252c1a22977d3c87898e723e5001cc87a0d87

heatclient/tests/unit/osc/utils.py

@@ -15,10 +15,10 @@
 #
 
 import os
+import sys
+from unittest import mock
 
 import fixtures
-import mock
-import sys
 import testtools
 
 from heatclient.tests.unit.osc import fakes

heatclient/tests/unit/osc/v1/fakes.py

@@ -13,7 +13,7 @@
 #   under the License.
 #
 
-import mock
+from unittest import mock
 
 from heatclient.tests.unit.osc import utils
 

heatclient/tests/unit/osc/v1/test_build_info.py

@@ -11,7 +11,7 @@
 #   under the License.
 #
 
-import mock
+from unittest import mock
 
 from heatclient.osc.v1 import build_info as osc_build_info
 from heatclient.tests.unit.osc.v1 import fakes as orchestration_fakes

heatclient/tests/unit/osc/v1/test_event.py

@@ -13,8 +13,8 @@
 #   Copyright 2015 IBM Corp.
 
 import copy
+from unittest import mock
 
-import mock
 import testscenarios
 
 from heatclient import exc

heatclient/tests/unit/osc/v1/test_resource.py

@@ -12,8 +12,8 @@
 #
 
 import copy
+from unittest import mock
 
-import mock
 from osc_lib import exceptions as exc
 
 from heatclient import exc as heat_exc

heatclient/tests/unit/osc/v1/test_snapshot.py

@@ -9,8 +9,9 @@
 #   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 unittest import mock
+
 from osc_lib import exceptions as exc
 import six
 

heatclient/tests/unit/osc/v1/test_software_config.py

@@ -11,7 +11,8 @@
 #   under the License.
 #
 
-import mock
+from unittest import mock
+
 from osc_lib import exceptions as exc
 import yaml
 

heatclient/tests/unit/osc/v1/test_software_deployment.py

@@ -12,8 +12,8 @@
 #
 
 import copy
+from unittest import mock
 
-import mock
 from osc_lib import exceptions as exc
 
 from heatclient import exc as heat_exc

heatclient/tests/unit/osc/v1/test_stack.py

@@ -13,8 +13,8 @@
 
 import copy
 import io
+from unittest import mock
 
-import mock
 from osc_lib import exceptions as exc
 from osc_lib import utils
 import six

heatclient/tests/unit/osc/v1/test_stack_failures.py

@@ -14,7 +14,7 @@
 
 import collections
 
-import mock
+from unittest import mock
 
 from heatclient import exc
 from heatclient.osc.v1 import stack_failures

heatclient/tests/unit/osc/v1/test_template.py

@@ -12,7 +12,7 @@
 #
 #   Copyright 2015 IBM Corp.
 
-import mock
+from unittest import mock
 
 from heatclient import exc
 from heatclient.osc.v1 import template

heatclient/tests/unit/test_build_info.py

@@ -13,7 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 from oslo_serialization import jsonutils
 import testtools
 

heatclient/tests/unit/test_common_http.py

@@ -13,9 +13,9 @@
 # limitations under the License.
 
 import socket
+from unittest import mock
 
 from keystoneauth1 import adapter
-import mock
 from oslo_serialization import jsonutils
 import six
 import testtools

heatclient/tests/unit/test_deployment_utils.py

@@ -11,7 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 import six
 import swiftclient.client
 import testscenarios

heatclient/tests/unit/test_environment_format.py

@@ -10,7 +10,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import six
 import testscenarios
 import testtools

heatclient/tests/unit/test_event_utils.py

@@ -10,7 +10,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import testtools
 
 from heatclient.common import event_utils

heatclient/tests/unit/test_events.py

@@ -12,7 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import testtools
 
 from heatclient.common import utils

heatclient/tests/unit/test_resource_types.py

@@ -11,7 +11,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import testtools
 
 from heatclient.common import utils

heatclient/tests/unit/test_resources.py

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

heatclient/tests/unit/test_shell.py

@@ -14,11 +14,11 @@
 import os
 import sys
 import tempfile
+from unittest import mock
 import uuid
 
 import fixtures
 from keystoneauth1 import fixture as keystone_fixture
-import mock
 from oslo_serialization import jsonutils
 from oslo_utils import encodeutils
 from requests_mock.contrib import fixture as rm_fixture

heatclient/tests/unit/test_software_configs.py

@@ -10,7 +10,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import mock
+from unittest import mock
+
 import testtools
 
 from heatclient.common import utils

heatclient/tests/unit/test_software_deployments.py

@@ -10,7 +10,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import mock
+from unittest import mock
+
 import testtools
 
 from heatclient.common import utils

heatclient/tests/unit/test_stacks.py

@@ -10,7 +10,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import testscenarios
 from testscenarios import scenarios as scnrs
 import testtools

heatclient/tests/unit/test_template_format.py

@@ -10,7 +10,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 import six
 import testscenarios
 import testtools

heatclient/tests/unit/test_template_utils.py

@@ -13,8 +13,8 @@
 
 import json
 import tempfile
+from unittest import mock
 
-import mock
 from oslo_serialization import base64
 import six
 from six.moves.urllib import error

heatclient/tests/unit/test_utils.py

@@ -14,8 +14,8 @@
 #    under the License.
 
 import os
+from unittest import mock
 
-import mock
 import testtools
 
 from heatclient.common import utils

heatclient/tests/unit/v1/test_hooks.py

@@ -11,7 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 import testtools
 
 from heatclient.common import hook_utils

lower-constraints.txt

@@ -31,7 +31,6 @@ keystoneauth1==3.4.0
 linecache2==1.0.0
 MarkupSafe==1.0
 mccabe==0.2.1
-mock==2.0.0
 monotonic==0.6
 msgpack-python==0.4.0
 munch==2.1.0

test-requirements.txt

@@ -7,7 +7,6 @@ hacking>=3.0,<3.1.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 requests-mock>=1.2.0 # Apache-2.0
-mock>=2.0.0 # BSD
 python-openstackclient>=3.12.0 # Apache-2.0
 stestr>=2.0.0 # Apache-2.0
 tempest>=17.1.0 # Apache-2.0