Merge "Add microversion fixture to set microversion"
diff --git a/tempest/api/compute/api_microversion_fixture.py b/tempest/api/compute/api_microversion_fixture.py
new file mode 100644
index 0000000..bf4de3e
--- /dev/null
+++ b/tempest/api/compute/api_microversion_fixture.py
@@ -0,0 +1,31 @@
+# Copyright 2016 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 fixtures
+
+from tempest.services.compute.json import base_compute_client
+
+
+class APIMicroversionFixture(fixtures.Fixture):
+
+    def __init__(self, compute_microversion):
+        self.compute_microversion = compute_microversion
+
+    def _setUp(self):
+        super(APIMicroversionFixture, self)._setUp()
+        base_compute_client.COMPUTE_MICROVERSION = self.compute_microversion
+        self.addCleanup(self._reset_compute_microversion)
+
+    def _reset_compute_microversion(self):
+        base_compute_client.COMPUTE_MICROVERSION = None
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 0856983..96f32aa 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -18,6 +18,7 @@
 from oslo_log import log as logging
 from tempest_lib import exceptions as lib_exc
 
+from tempest.api.compute import api_microversion_fixture
 from tempest.common import api_version_utils
 from tempest.common import compute
 from tempest.common.utils import data_utils
@@ -56,13 +57,6 @@
     @classmethod
     def setup_credentials(cls):
         cls.set_network_resources()
-        cls.request_microversion = (
-            api_version_utils.select_request_microversion(
-                cls.min_microversion,
-                CONF.compute_feature_enabled.min_microversion))
-        if cls.request_microversion:
-            cls.services_microversion = {
-                CONF.compute.catalog_type: cls.request_microversion}
         super(BaseV2ComputeTest, cls).setup_credentials()
 
     @classmethod
@@ -108,6 +102,10 @@
     @classmethod
     def resource_setup(cls):
         super(BaseV2ComputeTest, cls).resource_setup()
+        cls.request_microversion = (
+            api_version_utils.select_request_microversion(
+                cls.min_microversion,
+                CONF.compute_feature_enabled.min_microversion))
         cls.build_interval = CONF.compute.build_interval
         cls.build_timeout = CONF.compute.build_timeout
         cls.image_ref = CONF.compute.image_ref
@@ -371,6 +369,11 @@
         else:
             raise exceptions.InvalidConfiguration()
 
+    def setUp(self):
+        super(BaseV2ComputeTest, self).setUp()
+        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
+            self.request_microversion))
+
 
 class BaseV2ComputeAdminTest(BaseV2ComputeTest):
     """Base test case class for Compute Admin API tests."""
diff --git a/tempest/clients.py b/tempest/clients.py
index 2a8a4ae..ce5f8c1 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -202,30 +202,14 @@
     }
     default_params_with_timeout_values.update(default_params)
 
-    def __init__(self, credentials, service=None, api_microversions=None):
+    def __init__(self, credentials, service=None):
         """Initialization of Manager class.
 
         Setup all services clients and make them available for tests cases.
         :param credentials: type Credentials or TestResources
         :param service: Service name
-        :param api_microversions: This is dict of services catalog type
-               and their microversion which will be set on respective
-               services clients.
-               {<service catalog type>: request_microversion}
-               Example :
-                {'compute': request_microversion}
-                    - request_microversion will be set on all compute
-                      service clients.
-                OR
-                {'compute': request_microversion,
-                 'volume': request_microversion}
-                    - request_microversion of compute will be set on all
-                      compute service clients.
-                    - request_microversion of volume will be set on all
-                      volume service clients.
         """
         super(Manager, self).__init__(credentials=credentials)
-        self.api_microversions = api_microversions or {}
         self._set_compute_clients()
         self._set_database_clients()
         self._set_identity_clients()
@@ -390,8 +374,6 @@
         self.negative_client = negative_rest_client.NegativeRestClient(
             self.auth_provider, service, **self.default_params)
 
-        self._set_api_microversions()
-
     def _set_compute_clients(self):
         params = {
             'service': CONF.compute.catalog_type,
@@ -623,15 +605,3 @@
         self.account_client = AccountClient(self.auth_provider, **params)
         self.container_client = ContainerClient(self.auth_provider, **params)
         self.object_client = ObjectClient(self.auth_provider, **params)
-
-    def _set_api_microversions(self):
-        service_clients = [x for x in self.__dict__ if x.endswith('_client')]
-        for client in service_clients:
-            client_obj = getattr(self, client)
-            microversion = self.api_microversions.get(client_obj.service)
-            if microversion:
-                if hasattr(client_obj, 'set_api_microversion'):
-                    client_obj.set_api_microversion(microversion)
-                else:
-                    LOG.debug("Need to implement set_api_microversion on %s"
-                              % client)
diff --git a/tempest/common/api_version_utils.py b/tempest/common/api_version_utils.py
index c3d977f..7c7e96a 100644
--- a/tempest/common/api_version_utils.py
+++ b/tempest/common/api_version_utils.py
@@ -18,6 +18,9 @@
 from tempest import exceptions
 
 
+LATEST_MICROVERSION = 'latest'
+
+
 class BaseMicroversionTest(object):
     """Mixin class for API microversion test class."""
 
@@ -27,7 +30,7 @@
     # for all microversions. We need to define microversion range
     # (min_microversion, max_microversion) on each test class if necessary.
     min_microversion = None
-    max_microversion = 'latest'
+    max_microversion = LATEST_MICROVERSION
 
 
 def check_skip_with_microversion(test_min_version, test_max_version,
diff --git a/tempest/services/base_microversion_client.py b/tempest/services/base_microversion_client.py
deleted file mode 100644
index 4c750f5..0000000
--- a/tempest/services/base_microversion_client.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright 2016 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.
-
-from tempest_lib.common import rest_client
-
-
-class BaseMicroversionClient(rest_client.RestClient):
-    """Base class to support microversion in service clients
-
-    This class is used to support microversion in service clients.
-    This provides feature to make API request with microversion.
-    Service clients derived from this class will be able to send API
-    request to server with or without microversion.
-    If api_microversion is not set on service client then API request will be
-    normal request without microversion.
-
-    """
-    def __init__(self, auth_provider, service, region,
-                 api_microversion_header_name, **kwargs):
-        """Base Microversion Client __init__
-
-        :param auth_provider: an auth provider object used to wrap requests in
-                              auth
-        :param str service: The service name to use for the catalog lookup
-        :param str region: The region to use for the catalog lookup
-        :param str api_microversion_header_name: The microversion header name
-                                                 to use for sending API
-                                                 request with microversion
-        :param kwargs: kwargs required by rest_client.RestClient
-        """
-        super(BaseMicroversionClient, self).__init__(
-            auth_provider, service, region, **kwargs)
-        self.api_microversion_header_name = api_microversion_header_name
-        self.api_microversion = None
-
-    def get_headers(self):
-        headers = super(BaseMicroversionClient, self).get_headers()
-        if self.api_microversion:
-            headers[self.api_microversion_header_name] = self.api_microversion
-        return headers
-
-    def set_api_microversion(self, microversion):
-        self.api_microversion = microversion
diff --git a/tempest/services/compute/json/base_compute_client.py b/tempest/services/compute/json/base_compute_client.py
index 5349af6..5ea289c 100644
--- a/tempest/services/compute/json/base_compute_client.py
+++ b/tempest/services/compute/json/base_compute_client.py
@@ -11,30 +11,38 @@
 #    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 tempest_lib.common import rest_client
 
 from tempest.common import api_version_request
 from tempest.common import api_version_utils
 from tempest import exceptions
-from tempest.services import base_microversion_client
+
+COMPUTE_MICROVERSION = None
 
 
-class BaseComputeClient(base_microversion_client.BaseMicroversionClient):
+class BaseComputeClient(rest_client.RestClient):
+    api_microversion_header_name = 'X-OpenStack-Nova-API-Version'
 
     def __init__(self, auth_provider, service, region,
-                 api_microversion_header_name='X-OpenStack-Nova-API-Version',
                  **kwargs):
         super(BaseComputeClient, self).__init__(
-            auth_provider, service, region,
-            api_microversion_header_name, **kwargs)
+            auth_provider, service, region, **kwargs)
+
+    def get_headers(self):
+        headers = super(BaseComputeClient, self).get_headers()
+        if COMPUTE_MICROVERSION:
+            headers[self.api_microversion_header_name] = COMPUTE_MICROVERSION
+        return headers
 
     def request(self, method, url, extra_headers=False, headers=None,
                 body=None):
         resp, resp_body = super(BaseComputeClient, self).request(
             method, url, extra_headers, headers, body)
-        if self.api_microversion and self.api_microversion != 'latest':
+        if (COMPUTE_MICROVERSION and
+            COMPUTE_MICROVERSION != api_version_utils.LATEST_MICROVERSION):
             api_version_utils.assert_version_header_matches_request(
                 self.api_microversion_header_name,
-                self.api_microversion,
+                COMPUTE_MICROVERSION,
                 resp)
         return resp, resp_body
 
@@ -52,7 +60,7 @@
             {'min': '2.10', 'max': None, 'schema': schemav210}]
         """
         schema = None
-        version = api_version_request.APIVersionRequest(self.api_microversion)
+        version = api_version_request.APIVersionRequest(COMPUTE_MICROVERSION)
         for items in schema_versions_info:
             min_version = api_version_request.APIVersionRequest(items['min'])
             max_version = api_version_request.APIVersionRequest(items['max'])
diff --git a/tempest/test.py b/tempest/test.py
index ee3288c..5f8ef72 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -226,7 +226,6 @@
     # Resources required to validate a server using ssh
     validation_resources = {}
     network_resources = {}
-    services_microversion = {}
 
     # NOTE(sdague): log_format is defined inline here instead of using the oslo
     # default because going through the config path recouples config to the
@@ -522,8 +521,7 @@
             else:
                 raise exceptions.InvalidCredentials(
                     "Invalid credentials type %s" % credential_type)
-        return cls.client_manager(credentials=creds, service=cls._service,
-                                  api_microversions=cls.services_microversion)
+        return cls.client_manager(credentials=creds, service=cls._service)
 
     @classmethod
     def clear_credentials(cls):
@@ -610,8 +608,7 @@
                 credentials.is_admin_available(
                     identity_version=cls.get_identity_version())):
             admin_creds = cred_provider.get_admin_creds()
-            admin_manager = clients.Manager(
-                admin_creds, api_microversions=cls.services_microversion)
+            admin_manager = clients.Manager(admin_creds)
             networks_client = admin_manager.compute_networks_client
         return fixed_network.get_tenant_network(
             cred_provider, networks_client, CONF.compute.fixed_network_name)
diff --git a/tempest/tests/services/compute/test_base_compute_client.py b/tempest/tests/services/compute/test_base_compute_client.py
index 7a55cdb..672ae33 100644
--- a/tempest/tests/services/compute/test_base_compute_client.py
+++ b/tempest/tests/services/compute/test_base_compute_client.py
@@ -13,9 +13,11 @@
 #    under the License.
 
 import httplib2
+import mock
 from oslotest import mockpatch
 from tempest_lib.common import rest_client
 
+from tempest.api.compute import api_microversion_fixture
 from tempest import exceptions
 from tempest.services.compute.json import base_compute_client
 from tempest.tests import fake_auth_provider
@@ -29,7 +31,7 @@
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = base_compute_client.BaseComputeClient(
             fake_auth, 'compute', 'regionOne')
-        self.client.set_api_microversion('2.2')
+        self.useFixture(api_microversion_fixture.APIMicroversionFixture('2.2'))
 
     def _check_microverion_header_in_response(self, fake_response):
         def request(*args, **kwargs):
@@ -75,7 +77,8 @@
         super(TestSchemaVersionsNone, self).setUp()
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = DummyServiceClient1(fake_auth, 'compute', 'regionOne')
-        self.client.api_microversion = self.api_microversion
+        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
+            self.api_microversion))
 
     def test_schema(self):
         self.assertEqual(self.expected_schema,
@@ -129,8 +132,62 @@
         super(TestSchemaVersionsNotFound, self).setUp()
         fake_auth = fake_auth_provider.FakeAuthProvider()
         self.client = DummyServiceClient2(fake_auth, 'compute', 'regionOne')
-        self.client.api_microversion = self.api_microversion
+        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
+            self.api_microversion))
 
     def test_schema(self):
         self.assertRaises(exceptions.JSONSchemaNotFound,
                           self.client.return_selected_schema)
+
+
+class TestClientWithoutMicroversionHeader(base.BaseComputeServiceTest):
+
+    def setUp(self):
+        super(TestClientWithoutMicroversionHeader, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = base_compute_client.BaseComputeClient(
+            fake_auth, 'compute', 'regionOne')
+
+    def test_no_microverion_header(self):
+        header = self.client.get_headers()
+        self.assertNotIn('X-OpenStack-Nova-API-Version', header)
+
+    def test_no_microverion_header_in_raw_request(self):
+        def raw_request(*args, **kwargs):
+            self.assertNotIn('X-OpenStack-Nova-API-Version', kwargs['headers'])
+            return (httplib2.Response({'status': 200}), {})
+
+        with mock.patch.object(rest_client.RestClient,
+                               'raw_request') as mock_get:
+            mock_get.side_effect = raw_request
+            self.client.get('fake_url')
+
+
+class TestClientWithMicroversionHeader(base.BaseComputeServiceTest):
+
+    def setUp(self):
+        super(TestClientWithMicroversionHeader, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = base_compute_client.BaseComputeClient(
+            fake_auth, 'compute', 'regionOne')
+        self.useFixture(api_microversion_fixture.APIMicroversionFixture('2.2'))
+
+    def test_microverion_header(self):
+        header = self.client.get_headers()
+        self.assertIn('X-OpenStack-Nova-API-Version', header)
+        self.assertEqual('2.2',
+                         header['X-OpenStack-Nova-API-Version'])
+
+    def test_microverion_header_in_raw_request(self):
+        def raw_request(*args, **kwargs):
+            self.assertIn('X-OpenStack-Nova-API-Version', kwargs['headers'])
+            self.assertEqual('2.2',
+                             kwargs['headers']['X-OpenStack-Nova-API-Version'])
+            return (httplib2.Response(
+                {'status': 200,
+                 self.client.api_microversion_header_name: '2.2'}), {})
+
+        with mock.patch.object(rest_client.RestClient,
+                               'raw_request') as mock_get:
+            mock_get.side_effect = raw_request
+            self.client.get('fake_url')
diff --git a/tempest/tests/services/test_base_microversion_client.py b/tempest/tests/services/test_base_microversion_client.py
deleted file mode 100644
index 11b8170..0000000
--- a/tempest/tests/services/test_base_microversion_client.py
+++ /dev/null
@@ -1,75 +0,0 @@
-# Copyright 2016 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 httplib2
-import mock
-from tempest_lib.common import rest_client
-
-from tempest.services import base_microversion_client
-from tempest.tests import fake_auth_provider
-from tempest.tests.services.compute import base
-
-
-class TestClientWithoutMicroversionHeader(base.BaseComputeServiceTest):
-
-    def setUp(self):
-        super(TestClientWithoutMicroversionHeader, self).setUp()
-        fake_auth = fake_auth_provider.FakeAuthProvider()
-        self.client = base_microversion_client.BaseMicroversionClient(
-            fake_auth, 'compute', 'regionOne', 'X-OpenStack-Nova-API-Version')
-
-    def test_no_microverion_header(self):
-        header = self.client.get_headers()
-        self.assertNotIn(self.client.api_microversion_header_name, header)
-
-    def test_no_microverion_header_in_raw_request(self):
-        def raw_request(*args, **kwargs):
-            self.assertNotIn(self.client.api_microversion_header_name,
-                             kwargs['headers'])
-            return (httplib2.Response({'status': 200}), {})
-
-        with mock.patch.object(rest_client.RestClient,
-                               'raw_request') as mock_get:
-            mock_get.side_effect = raw_request
-            self.client.get('fake_url')
-
-
-class TestClientWithMicroversionHeader(base.BaseComputeServiceTest):
-
-    def setUp(self):
-        super(TestClientWithMicroversionHeader, self).setUp()
-        fake_auth = fake_auth_provider.FakeAuthProvider()
-        self.client = base_microversion_client.BaseMicroversionClient(
-            fake_auth, 'compute', 'regionOne', 'X-OpenStack-Nova-API-Version')
-        self.client.set_api_microversion('2.2')
-
-    def test_microverion_header(self):
-        header = self.client.get_headers()
-        self.assertIn(self.client.api_microversion_header_name, header)
-        self.assertEqual(self.client.api_microversion,
-                         header[self.client.api_microversion_header_name])
-
-    def test_microverion_header_in_raw_request(self):
-        def raw_request(*args, **kwargs):
-            self.assertIn(self.client.api_microversion_header_name,
-                          kwargs['headers'])
-            self.assertEqual(
-                self.client.api_microversion,
-                kwargs['headers'][self.client.api_microversion_header_name])
-            return (httplib2.Response({'status': 200}), {})
-
-        with mock.patch.object(rest_client.RestClient,
-                               'raw_request') as mock_get:
-            mock_get.side_effect = raw_request
-            self.client.get('fake_url')