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

@@ -14,8 +14,8 @@
 
 import json
 import uuid
+from unittest import mock
 
-import mock
 from oslo_config import fixture as config_fixture
 import webtest.app
 

refstack/tests/api/test_profile.py

@@ -14,13 +14,13 @@
 
 import binascii
 import json
+from unittest import mock
 
 from cryptography.hazmat.backends import default_backend
 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
 import webtest.app
 
 from refstack.tests import api

refstack/tests/api/test_results.py

@@ -14,8 +14,8 @@
 
 import json
 import uuid
+from unittest import mock
 
-import mock
 from oslo_config import fixture as config_fixture
 import webtest.app
 

refstack/tests/api/test_vendors.py

@@ -14,8 +14,8 @@
 
 import json
 import uuid
+from unittest import mock
 
-import mock
 from oslo_config import fixture as config_fixture
 import webtest.app
 

refstack/tests/unit/__init__.py

@@ -14,7 +14,8 @@
 #    under the License.
 """Refstack unittests."""
 
-import mock
+from unittest import mock
+
 from oslotest import base
 
 

refstack/tests/unit/test_api.py

@@ -16,8 +16,8 @@
 """Tests for API's controllers"""
 
 import json
+from unittest import mock
 
-import mock
 from oslo_config import fixture as config_fixture
 from urllib import parse
 import webob.exc

refstack/tests/unit/test_api_utils.py

@@ -15,8 +15,8 @@
 
 """Tests for API's utils"""
 import time
+from unittest import mock
 
-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

@@ -16,8 +16,8 @@
 """Tests for API's utility"""
 
 import json
+from unittest import mock
 
-import mock
 from oslo_config import fixture as config_fixture
 from oslotest import base
 import pecan

refstack/tests/unit/test_db.py

@@ -17,7 +17,8 @@
 
 import base64
 import hashlib
-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

@@ -14,9 +14,9 @@
 #    under the License.
 
 import json
+from unittest import mock
 
 import httmock
-import mock
 from oslotest import base
 import requests
 

refstack/tests/unit/test_migration.py

@@ -16,7 +16,8 @@
 """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

@@ -16,6 +16,7 @@
 """Tests for validators."""
 import binascii
 import json
+from unittest import mock
 
 from cryptography.hazmat.backends import default_backend
 from cryptography.hazmat.primitives.asymmetric import padding
@@ -24,7 +25,6 @@ from cryptography.hazmat.primitives import hashes
 from cryptography.hazmat.primitives import serialization
 
 import jsonschema
-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
 stestr>=1.1.0 # Apache-2.0