Fix volume functional tests

The volume v2 functional tests occasionally fail with
"unrecognized arguments: --private". This appears to occur when
volume v1 and volume v2 functional tests are run at the same time
when one or more of the tests do not set OS_VOLUME_API_VERSION
appropriately.

This patch also fixes a timing issue seen when running the
tests locally due to a missing wait and moves the snapshot
test to volume v2 since it was written for v2.

Change-Id: I9c9863fe1aef81b0564920f36452c6f27211d5ba
Closes-Bug: #1589793

functional/tests/volume/v1/test_qos.py

@@ -15,7 +15,7 @@ import uuid
 from functional.tests.volume.v1 import common
 
 
-class VolumeTests(common.BaseVolumeTests):
+class QosTests(common.BaseVolumeTests):
     """Functional tests for volume qos. """
 
     NAME = uuid.uuid4().hex
@@ -25,6 +25,7 @@ class VolumeTests(common.BaseVolumeTests):
 
     @classmethod
     def setUpClass(cls):
+        super(QosTests, cls).setUpClass()
         opts = cls.get_show_opts(cls.FIELDS)
         raw_output = cls.openstack('volume qos create ' + cls.NAME + opts)
         cls.ID, name, rol = raw_output.split('\n')

functional/tests/volume/v1/test_volume.py

@@ -10,7 +10,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import os
 import uuid
 
 from functional.tests.volume.v1 import common
@@ -26,7 +25,7 @@ class VolumeTests(common.BaseVolumeTests):
 
     @classmethod
     def setUpClass(cls):
-        os.environ['OS_VOLUME_API_VERSION'] = '1'
+        super(VolumeTests, cls).setUpClass()
         opts = cls.get_show_opts(cls.FIELDS)
         raw_output = cls.openstack('volume create --size 1 ' + cls.NAME + opts)
         expected = cls.NAME + '\n'

functional/tests/volume/v1/test_volume_type.py

@@ -24,6 +24,7 @@ class VolumeTypeTests(common.BaseVolumeTests):
 
     @classmethod
     def setUpClass(cls):
+        super(VolumeTypeTests, cls).setUpClass()
         opts = cls.get_show_opts(cls.FIELDS)
         raw_output = cls.openstack('volume type create ' + cls.NAME + opts)
         expected = cls.NAME + '\n'

functional/tests/volume/v2/common.py

@@ -0,0 +1,23 @@
+#    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 os
+
+from functional.common import test
+
+
+class BaseVolumeTests(test.TestCase):
+    """Base class for Volume functional tests. """
+
+    @classmethod
+    def setUpClass(cls):
+        os.environ['OS_VOLUME_API_VERSION'] = '2'

functional/tests/volume/v2/test_qos.py

@@ -12,10 +12,10 @@
 
 import uuid
 
-from functional.common import test
+from functional.tests.volume.v2 import common
 
 
-class VolumeTests(test.TestCase):
+class QosTests(common.BaseVolumeTests):
     """Functional tests for volume qos. """
 
     NAME = uuid.uuid4().hex
@@ -25,6 +25,7 @@ class VolumeTests(test.TestCase):
 
     @classmethod
     def setUpClass(cls):
+        super(QosTests, cls).setUpClass()
         opts = cls.get_show_opts(cls.FIELDS)
         raw_output = cls.openstack('volume qos create ' + cls.NAME + opts)
         cls.ID, name, rol = raw_output.split('\n')

functional/tests/volume/v2/test_snapshot.py

@@ -13,10 +13,10 @@
 import time
 import uuid
 
-from functional.common import test
+from functional.tests.volume.v2 import common
 
 
-class SnapshotTests(test.TestCase):
+class SnapshotTests(common.BaseVolumeTests):
     """Functional tests for snapshot. """
 
     VOLLY = uuid.uuid4().hex
@@ -36,6 +36,7 @@ class SnapshotTests(test.TestCase):
 
     @classmethod
     def setUpClass(cls):
+        super(SnapshotTests, cls).setUpClass()
         cls.openstack('volume create --size 1 ' + cls.VOLLY)
         cls.wait_for_status('volume show ' + cls.VOLLY, 'available\n', 3)
         opts = cls.get_show_opts(['status'])

functional/tests/volume/v2/test_volume.py

@@ -10,14 +10,13 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import os
 import time
 import uuid
 
-from functional.common import test
+from functional.tests.volume.v2 import common
 
 
-class VolumeTests(test.TestCase):
+class VolumeTests(common.BaseVolumeTests):
     """Functional tests for volume. """
 
     NAME = uuid.uuid4().hex
@@ -29,7 +28,7 @@ class VolumeTests(test.TestCase):
 
     @classmethod
     def setUpClass(cls):
-        os.environ['OS_VOLUME_API_VERSION'] = '2'
+        super(VolumeTests, cls).setUpClass()
         opts = cls.get_show_opts(cls.FIELDS)
 
         # Create test volume
@@ -111,6 +110,7 @@ class VolumeTests(test.TestCase):
         # Delete test snapshot
         raw_output = self.openstack('snapshot delete ' + self.SNAPSHOT_NAME)
         self.assertOutput('', raw_output)
+        self.wait_for("volume", self.NAME, "available")
 
     def wait_for(self, check_type, check_name, desired_status, wait=120,
                  interval=5, failures=['ERROR']):

functional/tests/volume/v2/test_volume_type.py

@@ -12,10 +12,10 @@
 
 import uuid
 
-from functional.common import test
+from functional.tests.volume.v2 import common
 
 
-class VolumeTypeTests(test.TestCase):
+class VolumeTypeTests(common.BaseVolumeTests):
     """Functional tests for volume type. """
 
     NAME = uuid.uuid4().hex
@@ -24,6 +24,7 @@ class VolumeTypeTests(test.TestCase):
 
     @classmethod
     def setUpClass(cls):
+        super(VolumeTypeTests, cls).setUpClass()
         opts = cls.get_show_opts(cls.FIELDS)
         raw_output = cls.openstack(
             'volume type create --private ' + cls.NAME + opts)