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: I130c03e12ddc53ce7ced728a43b10b142f7b066f
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
Co-Authored-By: Hiroo Kitamura <hiroo.kitamura@ntt-at.co.jp>

lower-constraints.txt

@@ -53,7 +53,6 @@ linecache2==1.0.0
 Mako==1.0.7
 MarkupSafe==1.0
 mccabe==0.2.1
-mock==3.0.0
 monotonic==1.4
 mox3==0.25.0
 msgpack==0.5.6

tacker/db/migration/cli.py

@@ -87,7 +87,7 @@ def validate_head_file(config):
     if len(script.get_heads()) > 1:
         alembic_util.err(_('Timeline branches unable to generate timeline'))
 
-    head_path = os.path.join(script.versions, HEAD_FILENAME)
+    head_path = os.path.join(str(script.versions), HEAD_FILENAME)
     if (os.path.isfile(head_path) and
             open(head_path).read().strip() == script.get_current_head()):
         return
@@ -100,7 +100,7 @@ def update_head_file(config):
     if len(script.get_heads()) > 1:
         alembic_util.err(_('Timeline branches unable to generate timeline'))
 
-    head_path = os.path.join(script.versions, HEAD_FILENAME)
+    head_path = os.path.join(str(script.versions), HEAD_FILENAME)
     with open(head_path, 'w+') as f:
         f.write(script.get_current_head())
 

tacker/tests/base.py

@@ -21,11 +21,11 @@ import logging
 import os
 import os.path
 import sys
+from unittest import mock
 import weakref
 
 import eventlet.timeout
 import fixtures
-import mock
 from oslo_config import cfg
 from oslo_messaging import conffixture as messaging_conffixture
 import testtools

tacker/tests/unit/agent/linux/test_utils.py

@@ -13,7 +13,7 @@
 #    under the License.
 
 
-import mock
+from unittest import mock
 
 import oslo_i18n
 

tacker/tests/unit/api/test_v2_extension.py

@@ -14,7 +14,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 from oslo_config import cfg
 from oslo_utils import uuidutils
 from webob import exc

tacker/tests/unit/api/v1/test_resource.py

@@ -13,7 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 from webob import exc
 import webtest
 

tacker/tests/unit/api/v1/test_resource_helper.py

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

tacker/tests/unit/api/v1/test_router.py

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

tacker/tests/unit/api/v1/test_vim.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
 import six
 from webob import exc
 

tacker/tests/unit/api/v2/test_api_v2.py

@@ -14,8 +14,8 @@
 #    under the License.
 
 import os
+from unittest import mock
 
-import mock
 from oslo_config import cfg
 from oslo_policy import policy as common_policy
 from oslo_utils import uuidutils

tacker/tests/unit/base.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_config import cfg
 from oslo_config import fixture as config_fixture
 from requests_mock.contrib import fixture as requests_mock_fixture

tacker/tests/unit/common/test_config.py

@@ -14,8 +14,8 @@
 # limitations under the License.
 
 import os
+from unittest import mock
 
-import mock
 from oslo_config import cfg
 
 from tacker.common import config

tacker/tests/unit/common/test_csar_utils.py

@@ -12,10 +12,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
 import os
 import shutil
 import testtools
+from unittest import mock
 
 from tacker.common import csar_utils
 from tacker.common import exceptions

tacker/tests/unit/common/test_log.py

@@ -12,7 +12,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from tacker.common import log as call_log
 from tacker.tests import base

tacker/tests/unit/conductor/conductorrpc/test_vnf_pkgm_rpc.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from tacker.common.rpc import BackingOffClient
 from tacker.conductor.conductorrpc import vnf_pkgm_rpc

tacker/tests/unit/conductor/test_conductor_server.py

@@ -14,12 +14,12 @@
 # limitations under the License.
 
 import os
-from oslo_config import cfg
 import shutil
 import sys
+from unittest import mock
 
 from glance_store import exceptions as store_exceptions
-import mock
+from oslo_config import cfg
 from six.moves import urllib
 import six.moves.urllib.error as urlerr
 import yaml

tacker/tests/unit/db/common_services/test_common_services_db_plugin.py

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

tacker/tests/unit/db/test_db_migration.py

@@ -16,8 +16,8 @@
 # @author Mark McClain (DreamHost)
 
 import sys
+from unittest import mock
 
-import mock
 
 from tacker.db.migration import cli
 from tacker.tests import base

tacker/tests/unit/db/test_db_purge_delete.py

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

tacker/tests/unit/extensions/test_common_services.py

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

tacker/tests/unit/glance_store/test_store.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 import glance_store
 from six.moves import urllib

tacker/tests/unit/nfvo/drivers/vim/test_kubernetes_driver.py

@@ -13,7 +13,8 @@
 #    under the License.
 
 from collections import namedtuple
-import mock
+from unittest import mock
+
 from oslo_config import cfg
 
 from tacker import context as t_context

tacker/tests/unit/nfvo/drivers/vim/test_openstack_driver.py

@@ -14,9 +14,9 @@
 #    under the License.
 
 import os
+from unittest import mock
 
 from keystoneauth1 import exceptions
-import mock
 from oslo_config import cfg
 
 from tacker import context as t_context

tacker/tests/unit/nfvo/drivers/vnffg/sfc_drivers/networking-sfc/test_n_sfc.py

@@ -11,7 +11,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from oslo_utils import uuidutils
 

tacker/tests/unit/nfvo/test_nfvo_plugin.py

@@ -15,11 +15,11 @@
 
 import codecs
 from datetime import datetime
-import mock
 import os
-from oslo_utils import uuidutils
+from unittest import mock
+from unittest.mock import patch
 
-from mock import patch
+from oslo_utils import uuidutils
 
 from tacker.common import exceptions
 from tacker import context

tacker/tests/unit/objects/test_vnf_deployment_flavour.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from tacker.common import exceptions
 from tacker import context

tacker/tests/unit/objects/test_vnf_instance.py

@@ -13,16 +13,16 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
+
 from tacker.common import exceptions
 from tacker import context
+from tacker.db import api as sqlalchemy_api
 from tacker import objects
 from tacker.tests.unit.db.base import SqlTestCase
 from tacker.tests.unit.objects import fakes
 from tacker.tests import uuidsentinel
 
-from tacker.db import api as sqlalchemy_api
-
 get_engine = sqlalchemy_api.get_engine
 
 

tacker/tests/unit/objects/test_vnf_package.py

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 from oslo_utils import uuidutils
 
 from tacker.common import exceptions

tacker/tests/unit/objects/test_vnf_resource.py

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

tacker/tests/unit/test_alarm_receiver.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
 from webob import Request
 

tacker/tests/unit/test_context.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_context import context as oslo_context
 from testtools import matchers
 

tacker/tests/unit/test_policy.py

@@ -15,8 +15,9 @@
 
 """Test of Policy Engine For Tacker"""
 
+from unittest import mock
+
 import fixtures
-import mock
 import six
 
 from oslo_policy import policy as common_policy

tacker/tests/unit/test_wsgi.py

@@ -14,10 +14,11 @@
 #    under the License.
 
 import os
+from unittest import mock
+
 import oslo_i18n
 import socket
 
-import mock
 from oslo_config import cfg
 import six.moves.urllib.request as urllibrequest
 import testtools

tacker/tests/unit/tests/test_post_mortem_debug.py

@@ -14,8 +14,8 @@
 # under the License.
 
 import sys
+from unittest import mock
 
-import mock
 from six import moves
 
 from tacker.tests import base

tacker/tests/unit/vnflcm/test_controller.py

@@ -12,9 +12,9 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
+from unittest import mock
 
 import ddt
-import mock
 from oslo_serialization import jsonutils
 from six.moves import http_client
 from webob import exc

tacker/tests/unit/vnflcm/test_vnflcm_driver.py

@@ -14,10 +14,11 @@
 # limitations under the License.
 import os
 import shutil
+from unittest import mock
 
 import fixtures
-import mock
 from oslo_config import cfg
+
 from tacker.common import exceptions
 from tacker.common import utils
 from tacker import context

tacker/tests/unit/vnfm/infra_drivers/openstack/test_openstack.py

@@ -15,8 +15,7 @@
 
 import codecs
 import os
-
-import mock
+from unittest import mock
 import yaml
 
 from oslo_serialization import jsonutils

tacker/tests/unit/vnfm/infra_drivers/openstack/test_openstack_driver.py

@@ -13,13 +13,14 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import ddt
 import importlib
 import json
-import mock
 import os
-import requests
 import tempfile
+from unittest import mock
+
+import ddt
+import requests
 import yaml
 
 from tacker.common import exceptions

tacker/tests/unit/vnfm/infra_drivers/openstack/test_vdu.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
+from unittest import mock
 
 from tacker import context
 from tacker.db.common_services import common_services_db_plugin

tacker/tests/unit/vnfm/monitor_drivers/http_ping/test_http_ping.py

@@ -12,7 +12,8 @@
 #    under the License.
 #
 
-import mock
+from unittest import mock
+
 import six.moves.urllib.error as urlerr
 import testtools
 

tacker/tests/unit/vnfm/monitor_drivers/ping/test_ping.py

@@ -12,8 +12,8 @@
 #    under the License.
 #
 
-import mock
 import testtools
+from unittest import mock
 
 from tacker.vnfm.monitor_drivers.ping import ping
 

tacker/tests/unit/vnfm/monitor_drivers/zabbix/test_zabbix.py

@@ -12,9 +12,9 @@
 #    under the License.
 #
 
-import mock
 from tacker.vnfm.monitor_drivers.zabbix import zabbix
 import testtools
+from unittest import mock
 
 
 class TestVNFMonitorZabbix(testtools.TestCase):

tacker/tests/unit/vnfm/policy_actions/autoscaling/test_autoscaling.py

@@ -12,8 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
 import testtools
+from unittest import mock
 
 from tacker import context
 from tacker.db.common_services import common_services_db_plugin

tacker/tests/unit/vnfm/policy_actions/log/test_log.py

@@ -12,8 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
 import testtools
+from unittest import mock
 
 from tacker import context
 from tacker.db.common_services import common_services_db_plugin

tacker/tests/unit/vnfm/policy_actions/respawn/test_respawn.py

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

tacker/tests/unit/vnfm/policy_actions/vdu_autoheal/test_vdu_autoheal.py

@@ -13,8 +13,8 @@
 #
 
 from datetime import datetime
+from unittest import mock
 
-import mock
 from oslo_utils import uuidutils
 
 from tacker import context

tacker/tests/unit/vnfm/test_k8s_plugin.py

@@ -14,10 +14,10 @@
 #    under the License.
 
 from datetime import datetime
-
-import mock
+from unittest import mock
 
 from oslo_utils import uuidutils
+
 from tacker import context
 from tacker.db.common_services import common_services_db_plugin
 from tacker.db.nfvo import nfvo_db

tacker/tests/unit/vnfm/test_monitor.py

@@ -12,7 +12,8 @@
 #    under the License.
 #
 
-import mock
+from unittest import mock
+
 from oslo_serialization import jsonutils
 from oslo_utils import timeutils
 import testtools

tacker/tests/unit/vnfm/test_plugin.py

@@ -14,10 +14,10 @@
 #    under the License.
 
 from datetime import datetime
+from unittest import mock
+from unittest.mock import patch
 
 import ddt
-import mock
-from mock import patch
 from oslo_utils import uuidutils
 import yaml
 

tacker/tests/unit/vnfm/test_vim_client.py

@@ -10,8 +10,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
 from sqlalchemy.orm import exc as orm_exc
+from unittest import mock
 
 from tacker.extensions import nfvo
 from tacker import manager

tacker/tests/unit/vnfpkgm/test_controller.py

@@ -12,8 +12,9 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
+from unittest import mock
+
 import ddt
-import mock
 from oslo_serialization import jsonutils
 from six.moves import http_client
 from six.moves import urllib

test-requirements.txt

@@ -9,7 +9,6 @@ ddt>=1.0.1 # MIT
 doc8>=0.6.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 hacking>=3.0.1,<3.1.0 # Apache-2.0
-mock>=3.0.0 # BSD
 python-subunit>=1.0.0 # Apache-2.0/BSD
 python-tackerclient>=0.8.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0