Merge "Add compute client base class for microversion support"
diff --git a/tempest/services/compute/json/base.py b/tempest/services/compute/json/base.py
new file mode 100644
index 0000000..02e9f8b
--- /dev/null
+++ b/tempest/services/compute/json/base.py
@@ -0,0 +1,25 @@
+# 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.
+
+from tempest.common import service_client
+
+
+class BaseComputeClient(service_client.ServiceClient):
+    api_microversion = None
+
+    def get_headers(self):
+        headers = super(BaseComputeClient, self).get_headers()
+        if self.api_microversion:
+            headers['X-OpenStack-Nova-API-Version'] = self.api_microversion
+        return headers
diff --git a/tempest/tests/services/compute/test_base_compute_client.py b/tempest/tests/services/compute/test_base_compute_client.py
new file mode 100644
index 0000000..13461e4
--- /dev/null
+++ b/tempest/tests/services/compute/test_base_compute_client.py
@@ -0,0 +1,72 @@
+# 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 httplib2
+import mock
+from tempest_lib.common import rest_client
+
+from tempest.services.compute.json import base as base_compute_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_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.client.api_microversion = '2.2'
+
+    def test_microverion_header(self):
+        header = self.client.get_headers()
+        self.assertIn('X-OpenStack-Nova-API-Version', header)
+        self.assertEqual(self.client.api_microversion,
+                         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(self.client.api_microversion,
+                             kwargs['headers']['X-OpenStack-Nova-API-Version'])
+            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')