Use volume driver specific exceptions

Change generic use of exception.NovaException in the nova/volume directory
to specific exceptions. The exceptions used in this patch are:

 exception.VolumeBackendAPIException
 exception.InvalidInput
 exception.InvalidVolume
 exception.VolumeAtatched

Patch includes updates to the appropriate tests as well.

(cherry picked from cinder commit 3905a99)

Change-Id: I10407ff3f5babe64e88f445d3529269b7665ee16

2 files changed, 10 insertions, 10 deletions

diff --git a/nova/tests/test_storwize_svc.py b/nova/tests/test_storwize_svc.py
index e735bf66c..ac17f0968 100644
--- a/nova/tests/test_storwize_svc.py
+++ b/nova/tests/test_storwize_svc.py
@@ -882,7 +882,7 @@ class StorwizeSVCDriverTestCase(test.TestCase):
         # Check for missing san_ip
         saved = storwize_svc.FLAGS.san_ip
         storwize_svc.FLAGS.san_ip = None
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.san_ip = saved
 
@@ -906,7 +906,7 @@ class StorwizeSVCDriverTestCase(test.TestCase):
         orig_pool = getattr(storwize_svc.FLAGS, "storwize_svc_volpool_name")
         no_exist_pool = "i-dont-exist-%s" % random.randint(10000, 99999)
         storwize_svc.FLAGS.storwize_svc_volpool_name = no_exist_pool
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver.check_for_setup_error)
         storwize_svc.FLAGS.storwize_svc_volpool_name = orig_pool
 
@@ -934,44 +934,44 @@ class StorwizeSVCDriverTestCase(test.TestCase):
         saved_key = storwize_svc.FLAGS.san_private_key
         storwize_svc.FLAGS.san_password = None
         storwize_svc.FLAGS.san_private_key = None
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.san_password = saved_pass
         storwize_svc.FLAGS.san_private_key = saved_key
 
         saved = storwize_svc.FLAGS.storwize_svc_vol_vtype
         storwize_svc.FLAGS.storwize_svc_vol_vtype = "invalid"
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.storwize_svc_vol_vtype = saved
 
         saved = storwize_svc.FLAGS.storwize_svc_vol_rsize
         storwize_svc.FLAGS.storwize_svc_vol_rsize = "invalid"
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.storwize_svc_vol_rsize = saved
 
         saved = storwize_svc.FLAGS.storwize_svc_vol_warning
         storwize_svc.FLAGS.storwize_svc_vol_warning = "invalid"
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.storwize_svc_vol_warning = saved
 
         saved = storwize_svc.FLAGS.storwize_svc_vol_autoexpand
         storwize_svc.FLAGS.storwize_svc_vol_autoexpand = "invalid"
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.storwize_svc_vol_autoexpand = saved
 
         saved = storwize_svc.FLAGS.storwize_svc_vol_grainsize
         storwize_svc.FLAGS.storwize_svc_vol_grainsize = str(42)
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.storwize_svc_vol_grainsize = saved
 
         saved = storwize_svc.FLAGS.storwize_svc_flashcopy_timeout
         storwize_svc.FLAGS.storwize_svc_flashcopy_timeout = str(601)
-        self.assertRaises(exception.InvalidParameterValue,
+        self.assertRaises(exception.InvalidInput,
                 self.driver._check_flags)
         storwize_svc.FLAGS.storwize_svc_flashcopy_timeout = saved
 
diff --git a/nova/tests/test_volume.py b/nova/tests/test_volume.py
index a147a3a99..0752d2b9b 100644
--- a/nova/tests/test_volume.py
+++ b/nova/tests/test_volume.py
@@ -248,7 +248,7 @@ class VolumeTestCase(test.TestCase):
         self.assertEqual(vol['mountpoint'], mountpoint)
         self.assertEqual(vol['instance_uuid'], instance_uuid)
 
-        self.assertRaises(exception.NovaException,
+        self.assertRaises(exception.VolumeAttached,
                           self.volume.delete_volume,
                           self.context,
                           volume_id)