Create unique volumes_dir for testing.

Updates several Nova volume test classes so that we create a
unique volumes_dir for testing. This avoids polluting the source
tree with fake volume UUID's when running tests.

Note: I opted to go utils.tempdir in test_volume (which seemed
cleaner). I did not however use utils.tempdir in the other
test modules since it would have required a good be more
reformatting effort...

Change-Id: I24a53c28c52156750cf65942639af0b15fbeefc1

3 files changed, 33 insertions, 1 deletions

diff --git a/nova/tests/api/ec2/test_cinder_cloud.py b/nova/tests/api/ec2/test_cinder_cloud.py
index fe684d7cd..ed05b7a94 100644
--- a/nova/tests/api/ec2/test_cinder_cloud.py
+++ b/nova/tests/api/ec2/test_cinder_cloud.py
@@ -18,6 +18,8 @@
 #    under the License.
 
 import copy
+import shutil
+import tempfile
 
 from nova.api.ec2 import cloud
 from nova.api.ec2 import ec2utils
@@ -80,8 +82,10 @@ def get_instances_with_cached_ips(orig_func, *args, **kwargs):
 class CinderCloudTestCase(test.TestCase):
     def setUp(self):
         super(CinderCloudTestCase, self).setUp()
+        vol_tmpdir = tempfile.mkdtemp()
         self.flags(compute_driver='nova.virt.fake.FakeDriver',
                    volume_api_class='nova.tests.fake_volume.API',
+                   volumes_dir=vol_tmpdir,
                    stub_network=True)
 
         def fake_show(meh, context, id):
@@ -136,6 +140,10 @@ class CinderCloudTestCase(test.TestCase):
                                '76fa36fc-c930-4bf3-8c8a-ea2a2420deb6')
 
     def tearDown(self):
+        try:
+            shutil.rmtree(FLAGS.volumes_dir)
+        except OSError, e:
+            pass
         self.volume_api.reset_fake_api(self.context)
         super(CinderCloudTestCase, self).tearDown()
         fake.FakeImageService_reset()
diff --git a/nova/tests/api/ec2/test_cloud.py b/nova/tests/api/ec2/test_cloud.py
index ef78c007b..f4f8879f6 100644
--- a/nova/tests/api/ec2/test_cloud.py
+++ b/nova/tests/api/ec2/test_cloud.py
@@ -22,6 +22,7 @@ import copy
 import datetime
 import functools
 import os
+import shutil
 import string
 import tempfile
 
@@ -92,7 +93,9 @@ def get_instances_with_cached_ips(orig_func, *args, **kwargs):
 class CloudTestCase(test.TestCase):
     def setUp(self):
         super(CloudTestCase, self).setUp()
+        vol_tmpdir = tempfile.mkdtemp()
         self.flags(compute_driver='nova.virt.fake.FakeDriver',
+                   volumes_dir=vol_tmpdir,
                    stub_network=True)
 
         def fake_show(meh, context, id):
@@ -146,6 +149,10 @@ class CloudTestCase(test.TestCase):
                                '76fa36fc-c930-4bf3-8c8a-ea2a2420deb6')
 
     def tearDown(self):
+        try:
+            shutil.rmtree(FLAGS.volumes_dir)
+        except OSError, e:
+            pass
         super(CloudTestCase, self).tearDown()
         fake.FakeImageService_reset()
 
diff --git a/nova/tests/test_volume.py b/nova/tests/test_volume.py
index 57ca52786..00e2606cb 100644
--- a/nova/tests/test_volume.py
+++ b/nova/tests/test_volume.py
@@ -23,6 +23,8 @@ Tests for Volume Code.
 import cStringIO
 
 import mox
+import shutil
+import tempfile
 
 from nova import context
 from nova import db
@@ -49,7 +51,9 @@ class VolumeTestCase(test.TestCase):
     def setUp(self):
         super(VolumeTestCase, self).setUp()
         self.compute = importutils.import_object(FLAGS.compute_manager)
-        self.flags(compute_driver='nova.virt.fake.FakeDriver')
+        vol_tmpdir = tempfile.mkdtemp()
+        self.flags(compute_driver='nova.virt.fake.FakeDriver',
+                   volumes_dir=vol_tmpdir)
         self.stubs.Set(nova.flags.FLAGS, 'notification_driver',
                 ['nova.openstack.common.notifier.test_notifier'])
         self.volume = importutils.import_object(FLAGS.volume_manager)
@@ -60,6 +64,10 @@ class VolumeTestCase(test.TestCase):
         test_notifier.NOTIFICATIONS = []
 
     def tearDown(self):
+        try:
+            shutil.rmtree(FLAGS.volumes_dir)
+        except OSError, e:
+            pass
         db.instance_destroy(self.context, self.instance_uuid)
         notifier_api._reset_drivers()
         super(VolumeTestCase, self).tearDown()
@@ -454,7 +462,9 @@ class DriverTestCase(test.TestCase):
 
     def setUp(self):
         super(DriverTestCase, self).setUp()
+        vol_tmpdir = tempfile.mkdtemp()
         self.flags(volume_driver=self.driver_name,
+                   volumes_dir=vol_tmpdir,
                    logging_default_format_string="%(message)s")
         self.volume = importutils.import_object(FLAGS.volume_manager)
         self.context = context.get_admin_context()
@@ -474,6 +484,13 @@ class DriverTestCase(test.TestCase):
         self.instance_id = instance['id']
         self.instance_uuid = instance['uuid']
 
+    def tearDown(self):
+        try:
+            shutil.rmtree(FLAGS.volumes_dir)
+        except OSError, e:
+            pass
+        super(DriverTestCase, self).tearDown()
+
     def _attach_volume(self):
         """Attach volumes to an instance. This function also sets
            a fake log message."""