diff --git a/nova/tests/unit/virt/ironic/test_driver.py b/nova/tests/unit/virt/ironic/test_driver.py
index aa4d05a1683e..cd0128315123 100644
--- a/nova/tests/unit/virt/ironic/test_driver.py
+++ b/nova/tests/unit/virt/ironic/test_driver.py
@@ -1135,12 +1135,12 @@ class IronicDriverTestCase(test.NoDBTestCase):
 
     @mock.patch.object(FAKE_CLIENT, 'node')
     @mock.patch.object(ironic_driver.IronicDriver, '_cleanup_deploy')
-    def test_destroy(self, mock_cleanup_deploy, mock_node):
+    def _test_destroy(self, state, mock_cleanup_deploy, mock_node):
         node_uuid = 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee'
         network_info = 'foo'
 
         node = ironic_utils.get_test_node(driver='fake', uuid=node_uuid,
-                                          provision_state=ironic_states.ACTIVE)
+                                          provision_state=state)
         instance = fake_instance.fake_instance_obj(self.ctx, node=node_uuid)
 
         def fake_set_provision_state(*_):
@@ -1149,54 +1149,22 @@ class IronicDriverTestCase(test.NoDBTestCase):
         mock_node.get_by_instance_uuid.return_value = node
         mock_node.set_provision_state.side_effect = fake_set_provision_state
         self.driver.destroy(self.ctx, instance, network_info, None)
-        mock_node.set_provision_state.assert_called_once_with(node_uuid,
-                                                              'deleted')
+
         mock_node.get_by_instance_uuid.assert_called_with(instance.uuid)
         mock_cleanup_deploy.assert_called_with(self.ctx, node,
                                                instance, network_info)
 
-    @mock.patch.object(FAKE_CLIENT, 'node')
-    @mock.patch.object(ironic_driver.IronicDriver, '_cleanup_deploy')
-    def test_destroy_ignore_unexpected_state(self, mock_cleanup_deploy,
-                                             mock_node):
-        node_uuid = 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee'
-        network_info = 'foo'
+        # For states that makes sense check if set_provision_state has
+        # been called
+        if state in ironic_driver._UNPROVISION_STATES:
+            mock_node.set_provision_state.assert_called_once_with(
+                node_uuid, 'deleted')
+        else:
+            self.assertFalse(mock_node.set_provision_state.called)
 
-        node = ironic_utils.get_test_node(driver='fake', uuid=node_uuid,
-                                        provision_state=ironic_states.DELETING)
-        instance = fake_instance.fake_instance_obj(self.ctx, node=node_uuid)
-
-        mock_node.get_by_instance_uuid.return_value = node
-        self.driver.destroy(self.ctx, instance, network_info, None)
-        self.assertFalse(mock_node.set_provision_state.called)
-        mock_node.get_by_instance_uuid.assert_called_with(instance.uuid)
-        mock_cleanup_deploy.assert_called_with(self.ctx, node, instance,
-                                               network_info)
-
-    @mock.patch.object(FAKE_CLIENT, 'node')
-    @mock.patch.object(ironic_driver.IronicDriver, '_cleanup_deploy')
-    def _test_destroy_cleaning(self, mock_cleanup_deploy, mock_node,
-                               state=None):
-        node_uuid = 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee'
-        network_info = 'foo'
-
-        node = ironic_utils.get_test_node(
-            driver='fake', uuid=node_uuid,
-            provision_state=state)
-        instance = fake_instance.fake_instance_obj(self.ctx, node=node_uuid)
-
-        mock_node.get_by_instance_uuid.return_value = node
-        self.driver.destroy(self.ctx, instance, network_info, None)
-        self.assertFalse(mock_node.set_provision_state.called)
-        mock_node.get_by_instance_uuid.assert_called_with(instance.uuid)
-        mock_cleanup_deploy.assert_called_with(self.ctx, node, instance,
-                                               network_info)
-
-    def test_destroy_cleaning(self):
-        self._test_destroy_cleaning(state=ironic_states.CLEANING)
-
-    def test_destroy_cleanwait(self):
-        self._test_destroy_cleaning(state=ironic_states.CLEANWAIT)
+    def test_destroy(self):
+        for state in ironic_states.PROVISION_STATE_LIST:
+            self._test_destroy(state)
 
     @mock.patch.object(FAKE_CLIENT.node, 'set_provision_state')
     @mock.patch.object(ironic_driver, '_validate_instance_and_node')
diff --git a/nova/virt/ironic/driver.py b/nova/virt/ironic/driver.py
index d33a994102c2..b1b8de289630 100644
--- a/nova/virt/ironic/driver.py
+++ b/nova/virt/ironic/driver.py
@@ -112,6 +112,10 @@ _POWER_STATE_MAP = {
     ironic_states.POWER_OFF: power_state.SHUTDOWN,
 }
 
+_UNPROVISION_STATES = (ironic_states.ACTIVE, ironic_states.DEPLOYFAIL,
+                       ironic_states.ERROR, ironic_states.DEPLOYWAIT,
+                       ironic_states.DEPLOYING)
+
 
 def map_power_state(state):
     try:
@@ -902,10 +906,7 @@ class IronicDriver(virt_driver.ComputeDriver):
             #             without raising any exceptions.
             return
 
-        if node.provision_state in (ironic_states.ACTIVE,
-                                    ironic_states.DEPLOYFAIL,
-                                    ironic_states.ERROR,
-                                    ironic_states.DEPLOYWAIT):
+        if node.provision_state in _UNPROVISION_STATES:
             self._unprovision(self.ironicclient, instance, node)
 
         self._cleanup_deploy(context, node, instance, network_info)
diff --git a/nova/virt/ironic/ironic_states.py b/nova/virt/ironic/ironic_states.py
index 5bb9ec4a9376..162dbcd74767 100644
--- a/nova/virt/ironic/ironic_states.py
+++ b/nova/virt/ironic/ironic_states.py
@@ -128,7 +128,6 @@ This is the provision state used when inspection is started. A successfully
 inspected node shall transition to MANAGEABLE status.
 """
 
-
 INSPECTFAIL = 'inspect failed'
 """ Node inspection failed. """
 
@@ -145,3 +144,13 @@ POWER_OFF = 'power off'
 
 REBOOT = 'rebooting'
 """ Node is rebooting. """
+
+##################
+# Helper constants
+##################
+
+PROVISION_STATE_LIST = (NOSTATE, MANAGEABLE, AVAILABLE, ACTIVE, DEPLOYWAIT,
+                        DEPLOYING, DEPLOYFAIL, DEPLOYDONE, DELETING, DELETED,
+                        CLEANING, CLEANWAIT, CLEANFAIL, ERROR, REBUILD,
+                        INSPECTING, INSPECTFAIL)
+""" A list of all provision states. """