Use unittest.mock instead of third party mock

Following openstack horizon change
I2de669d8e89b8daeb7ee5405ffab35af6307c40b

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

Unblocks currently broken pyX gates

Change-Id: Id140c0a13c9d2a2bfcd1d851a04407f232021eef
Closes-Bug: #1870436

manila_ui/tests/dashboards/admin/security_services/tests.py

@@ -15,8 +15,8 @@
 
 from django.urls import reverse
 from horizon import exceptions as horizon_exceptions
-import mock
 from openstack_dashboard.api import keystone as api_keystone
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.admin import utils

manila_ui/tests/dashboards/admin/share_group_snapshots/tests.py

@@ -15,7 +15,7 @@
 
 import ddt
 from django.urls import reverse
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/admin/share_group_types/tests.py

@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 from django.urls import reverse
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/admin/share_groups/tests.py

@@ -15,7 +15,7 @@
 
 import ddt
 from django.urls import reverse
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/admin/share_instances/tests.py

@@ -15,8 +15,8 @@
 
 from django.urls import reverse
 from horizon import exceptions as horizon_exceptions
-import mock
 from openstack_dashboard.api import keystone as api_keystone
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/admin/share_networks/tests.py

@@ -15,10 +15,10 @@
 
 from django.urls import reverse
 from horizon import exceptions as horizon_exceptions
-import mock
 from neutronclient.client import exceptions
 from openstack_dashboard.api import keystone as api_keystone
 from openstack_dashboard.api import neutron as api_neutron
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.admin import utils

manila_ui/tests/dashboards/admin/share_servers/tests.py

@@ -15,8 +15,8 @@
 
 from django.urls import reverse
 from horizon import exceptions as horizon_exceptions
-import mock
 from openstack_dashboard.api import keystone as api_keystone
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/admin/share_snapshots/tests.py

@@ -15,8 +15,8 @@
 
 from django.urls import reverse
 from horizon import exceptions as horizon_exceptions
-import mock
 from openstack_dashboard.api import keystone as api_keystone
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.admin import utils

manila_ui/tests/dashboards/admin/share_types/test_forms.py

@@ -17,7 +17,7 @@ import ddt
 from django.core.handlers import wsgi
 from django import forms as django_forms
 from horizon import forms as horizon_forms
-import mock
+from unittest import mock
 
 from manila_ui.dashboards.admin.share_types import forms
 from manila_ui.tests import helpers as base

manila_ui/tests/dashboards/admin/share_types/tests.py

@@ -14,9 +14,9 @@
 #    under the License.
 
 from django.urls import reverse
-import mock
 from openstack_dashboard.api import keystone as api_keystone
 from openstack_dashboard.api import neutron as api_neutron
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.admin import utils

manila_ui/tests/dashboards/admin/shares/replicas/tests.py

@@ -14,7 +14,7 @@
 
 import ddt
 from django.urls import reverse
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/admin/shares/test_forms.py

@@ -14,7 +14,7 @@
 # under the License.
 
 from django.core.handlers import wsgi
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api
 from manila_ui.dashboards.admin.shares import forms

manila_ui/tests/dashboards/admin/shares/tests.py

@@ -15,9 +15,9 @@
 
 import ddt
 from django.urls import reverse
-import mock
 from openstack_dashboard.api import keystone as api_keystone
 from openstack_dashboard.api import neutron as api_neutron
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.admin import utils

manila_ui/tests/dashboards/project/security_services/tests.py

@@ -18,8 +18,8 @@
 
 from django.urls import reverse
 from horizon import exceptions as horizon_exceptions
-import mock
 from openstack_dashboard import api
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/project/share_group_snapshots/tests.py

@@ -15,7 +15,7 @@
 
 import ddt
 from django.urls import reverse
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/project/share_groups/tests.py

@@ -15,7 +15,7 @@
 
 import ddt
 from django.urls import reverse
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/project/share_networks/tests.py

@@ -13,10 +13,10 @@
 #    under the License.
 
 from django.urls import reverse
-import mock
 from neutronclient.client import exceptions
 from openstack_auth import policy
 from openstack_dashboard import api
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.api import network as api_manila_network

manila_ui/tests/dashboards/project/share_snapshots/test_tables.py

@@ -15,7 +15,7 @@
 
 import ddt
 from django.core.handlers import wsgi
-import mock
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.project.share_snapshots import tables

manila_ui/tests/dashboards/project/share_snapshots/tests.py

@@ -14,8 +14,8 @@
 
 import ddt
 from django.urls import reverse
-import mock
 from openstack_dashboard.api import neutron
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.tests.dashboards.project import test_data

manila_ui/tests/dashboards/project/shares/replicas/tests.py

@@ -14,8 +14,8 @@
 
 import ddt
 from django.urls import reverse
-import mock
 from openstack_dashboard.api import neutron
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.project.shares.replicas import tables as r_tables

manila_ui/tests/dashboards/project/shares/tests.py

@@ -16,8 +16,8 @@ import ddt
 from django.core.handlers import wsgi
 from django.urls import reverse
 from horizon import messages as horizon_messages
-import mock
 from openstack_dashboard.api import neutron
+from unittest import mock
 
 from manila_ui.api import manila as api_manila
 from manila_ui.dashboards.project.shares import forms

manila_ui/tests/dashboards/project/tests.py

@@ -14,7 +14,7 @@
 
 from django.urls import reverse
 from django.utils import translation
-import mock
+from unittest import mock
 
 from manila_ui.dashboards.project import shares
 from manila_ui.tests import helpers as test

manila_ui/tests/helpers.py

@@ -11,9 +11,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
 import os
 import unittest
+from unittest import mock
 
 from manila_ui import api
 from manila_ui.tests.test_data import utils

test-requirements.txt

@@ -5,7 +5,6 @@
 hacking>=1.1.0,<1.2.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 ddt>=1.0.1 # MIT
-mock>=2.0.0 # BSD
 python-subunit>=1.0.0 # Apache-2.0/BSD
 sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7'  # BSD
 sphinx!=1.6.6,!=1.6.7,!=2.1.0,>=1.6.2;python_version>='3.4'  # BSD