new_contents: # Copyright 2015 NEC Corporation.  All rights reserved.
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    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 copy
  import httplib2
  
  from oslo_serialization import jsonutils as json
  from oslotest import mockpatch
  
  from tempest.services.compute.json import certificates_client
  from tempest.tests import base
  from tempest.tests import fake_auth_provider
  
  
  class TestCertificatesClient(base.TestCase):
  
      FAKE_CERTIFICATE = {
          "certificate": {
              "data": "-----BEGIN----MIICyzCCAjSgAwI----END CERTIFICATE-----\n",
              "private_key": None
          }
      }
  
      def setUp(self):
          super(TestCertificatesClient, self).setUp()
          fake_auth = fake_auth_provider.FakeAuthProvider()
          self.client = certificates_client.CertificatesClient(
              fake_auth, 'compute', 'regionOne')
  
      def _test_show_certificate(self, bytes_body=False):
          serialized_body = json.dumps(self.FAKE_CERTIFICATE)
          if bytes_body:
              serialized_body = serialized_body.encode('utf-8')
  
          mocked_resp = (httplib2.Response({'status': 200}), serialized_body)
          self.useFixture(mockpatch.Patch(
              'tempest.common.service_client.ServiceClient.get',
              return_value=mocked_resp))
          resp = self.client.show_certificate("fake-id")
          self.assertEqual(self.FAKE_CERTIFICATE, resp)
  
      def test_show_certificate_with_str_body(self):
          self._test_show_certificate()
  
      def test_show_certificate_with_bytes_body(self):
          self._test_show_certificate(bytes_body=True)
  
      def _test_create_certificate(self, bytes_body=False):
          cert = copy.deepcopy(self.FAKE_CERTIFICATE)
          cert['certificate']['private_key'] = "my_private_key"
          serialized_body = json.dumps(cert)
          if bytes_body:
              serialized_body = serialized_body.encode('utf-8')
  
          mocked_resp = (httplib2.Response({'status': 200}), serialized_body)
          self.useFixture(mockpatch.Patch(
              'tempest.common.service_client.ServiceClient.post',
              return_value=mocked_resp))
          resp = self.client.create_certificate()
          self.assertEqual(cert, resp)
  
      def test_create_certificate_with_str_body(self):
          self._test_create_certificate()
  
      def test_create_certificate_with_bytes_body(self):
          self._test_create_certificate(bytes_body=True)
  
subject: Add unit tests for certificates_client