Use unittest.mock instead of mock

The mock third party library was needed for mock support in py2
runtimes. Since we now only support py36 and later, we can use the
standard lib unittest.mock module instead.

Change-Id: I70a406c060ba681ddc000788b3fa5ab2bba4d41f

refstack/tests/api/test_products.py

@@ -15,7 +15,7 @@
 import json
 import uuid
 
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 import webtest.app
 

refstack/tests/api/test_profile.py

@@ -20,7 +20,7 @@ from cryptography.hazmat.primitives.asymmetric import padding
 from cryptography.hazmat.primitives.asymmetric import rsa
 from cryptography.hazmat.primitives import hashes
 from cryptography.hazmat.primitives import serialization
-import mock
+from unittest import mock
 import webtest.app
 
 from refstack.tests import api

refstack/tests/api/test_results.py

@@ -15,7 +15,7 @@
 import json
 import uuid
 
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 import six
 import webtest.app

refstack/tests/api/test_vendors.py

@@ -15,7 +15,7 @@
 import json
 import uuid
 
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 import webtest.app
 

refstack/tests/unit/__init__.py

@@ -14,7 +14,7 @@
 #    under the License.
 """Refstack unittests."""
 
-import mock
+from unittest import mock
 from oslotest import base
 
 

refstack/tests/unit/test_api.py

@@ -17,7 +17,7 @@
 
 import json
 
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 from six.moves.urllib import parse
 import webob.exc

refstack/tests/unit/test_api_utils.py

@@ -16,7 +16,7 @@
 """Tests for API's utils"""
 import time
 
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 from oslo_utils import timeutils
 from oslotest import base

refstack/tests/unit/test_app.py

@@ -17,7 +17,7 @@
 
 import json
 
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 from oslotest import base
 import pecan

refstack/tests/unit/test_db.py

@@ -18,7 +18,7 @@
 import base64
 import hashlib
 import six
-import mock
+from unittest import mock
 from oslo_config import fixture as config_fixture
 from oslotest import base
 import sqlalchemy.orm

refstack/tests/unit/test_guidelines.py

@@ -16,7 +16,7 @@
 import json
 
 import httmock
-import mock
+from unittest import mock
 from oslotest import base
 import requests
 

refstack/tests/unit/test_migration.py

@@ -16,7 +16,7 @@
 """Tests for refstack's migrations."""
 
 import alembic
-import mock
+from unittest import mock
 from oslotest import base
 
 from refstack.db import migration

refstack/tests/unit/test_validators.py

@@ -24,7 +24,7 @@ from cryptography.hazmat.primitives import hashes
 from cryptography.hazmat.primitives import serialization
 
 import jsonschema
-import mock
+from unittest import mock
 from oslotest import base
 
 from refstack.api import exceptions as api_exc

test-requirements.txt

@@ -4,7 +4,6 @@ pyflakes==0.8.1
 flake8==2.2.4
 docutils>=0.11  # OSI-Approved Open Source, Public Domain
 httmock>=1.2.4
-mock
 oslotest>=1.2.0 # Apache-2.0
 python-subunit>=0.0.18
 testrepository>=0.0.18