Merge "Fix nits on DRAC OOB inspection patch"

ironic/drivers/modules/drac/inspect.py

@@ -77,8 +77,9 @@ class DracInspect(base.InspectInterface):
             properties['memory_mb'] = sum(
                 [memory.size_mb for memory in client.list_memory()])
             cpus = client.list_cpus()
-            properties['cpus'] = len(cpus)
-            properties['cpu_arch'] = 'x86_64' if cpus[0].arch64 else 'x86'
+            if cpus:
+                properties['cpus'] = len(cpus)
+                properties['cpu_arch'] = 'x86_64' if cpus[0].arch64 else 'x86'
 
             virtual_disks = client.list_virtual_disks()
             root_disk = self._guess_root_disk(virtual_disks)
@@ -133,8 +134,15 @@ class DracInspect(base.InspectInterface):
         LOG.info(_LI('Node %s successfully inspected.'), node.uuid)
         return states.MANAGEABLE
 
-    def _guess_root_disk(self, disks, min_size_required=4 * units.Ki):
+    def _guess_root_disk(self, disks, min_size_required_mb=4 * units.Ki):
+        """Find a root disk.
+
+        :param disks: list of disks.
+        :param min_size_required_mb: minimum required size of the root disk in
+                                     megabytes.
+        :returns: root disk.
+        """
         disks.sort(key=lambda disk: disk.size_mb)
         for disk in disks:
-            if disk.size_mb >= min_size_required:
+            if disk.size_mb >= min_size_required_mb:
                 return disk

ironic/tests/unit/drivers/modules/drac/test_inspect.py

@@ -207,6 +207,24 @@ class DracInspectionTestCase(db_base.DbTestCase):
         self.assertEqual(states.MANAGEABLE, return_value)
         self.assertEqual(2, mock_port_create.call_count)
 
+    @mock.patch.object(drac_common, 'get_drac_client', spec_set=True,
+                       autospec=True)
+    @mock.patch.object(objects.Port, 'create', spec_set=True, autospec=True)
+    def test_inspect_hardware_no_cpu(
+            self, mock_port_create, mock_get_drac_client):
+        mock_client = mock.Mock()
+        mock_get_drac_client.return_value = mock_client
+        mock_client.list_memory.return_value = self.memory
+        mock_client.list_cpus.return_value = []
+        mock_client.list_virtual_disks.return_value = []
+        mock_client.list_physical_disks.return_value = self.physical_disks
+        mock_client.list_nics.return_value = self.nics
+
+        with task_manager.acquire(self.context, self.node.uuid,
+                                  shared=True) as task:
+            self.assertRaises(exception.HardwareInspectionFailure,
+                              task.driver.inspect.inspect_hardware, task)
+
     @mock.patch.object(drac_common, 'get_drac_client', spec_set=True,
                        autospec=True)
     @mock.patch.object(objects.Port, 'create', spec_set=True, autospec=True)
@@ -233,3 +251,11 @@ class DracInspectionTestCase(db_base.DbTestCase):
         self.assertEqual(expected_node_properties, self.node.properties)
         self.assertEqual(states.MANAGEABLE, return_value)
         self.assertEqual(2, mock_port_create.call_count)
+
+    def test__guess_root_disk(self):
+        with task_manager.acquire(self.context, self.node.uuid,
+                                  shared=True) as task:
+            root_disk = task.driver.inspect._guess_root_disk(
+                self.physical_disks)
+
+            self.assertEqual(285888, root_disk.size_mb)