Support multiple argument for compute agent delete command

Change-Id: I3b19e4914d475b86d7e8aa8d76e62a2ac811272f
Partially-Implements: blueprint multi-argument-compute

doc/source/command-objects/compute-agent.rst

@@ -44,17 +44,17 @@ Create compute agent
 compute agent delete
 --------------------
 
-Delete compute agent command
+Delete compute agent(s)
 
 .. program:: compute agent delete
 .. code:: bash
 
-    os compute agent delete <id>
+    os compute agent delete <id> [<id> ...]
 
 .. _compute_agent-delete:
 .. describe:: <id>
 
-    ID of agent to delete
+    ID of agent(s) to delete
 
 compute agent list
 ------------------

openstackclient/compute/v2/agent.py

@@ -18,6 +18,7 @@
 import six
 
 from openstackclient.common import command
+from openstackclient.common import exceptions
 from openstackclient.common import utils
 from openstackclient.i18n import _
 
@@ -75,20 +76,35 @@ class CreateAgent(command.ShowOne):
 
 
 class DeleteAgent(command.Command):
-    """Delete compute agent command"""
+    """Delete compute agent(s)"""
 
     def get_parser(self, prog_name):
         parser = super(DeleteAgent, self).get_parser(prog_name)
         parser.add_argument(
             "id",
             metavar="<id>",
-            help=_("ID of agent to delete")
+            nargs='+',
+            help=_("ID of agent(s) to delete")
         )
         return parser
 
     def take_action(self, parsed_args):
         compute_client = self.app.client_manager.compute
-        compute_client.agents.delete(parsed_args.id)
+        result = 0
+        for id in parsed_args.id:
+            try:
+                compute_client.agents.delete(id)
+            except Exception as e:
+                result += 1
+                self.app.log.error(_("Failed to delete agent with "
+                                   "ID '%(id)s': %(e)s")
+                                   % {'id': id, 'e': e})
+
+        if result > 0:
+            total = len(parsed_args.id)
+            msg = (_("%(result)s of %(total)s agents failed "
+                   "to delete.") % {'result': result, 'total': total})
+            raise exceptions.CommandError(msg)
 
 
 class ListAgent(command.Lister):

openstackclient/tests/compute/v2/test_agent.py

@@ -13,6 +13,10 @@
 #   under the License.
 #
 
+import mock
+
+from mock import call
+from openstackclient.common import exceptions
 from openstackclient.compute.v2 import agent
 from openstackclient.tests.compute.v2 import fakes as compute_fakes
 
@@ -89,26 +93,73 @@ class TestAgentCreate(TestAgent):
 
 class TestAgentDelete(TestAgent):
 
+    fake_agents = compute_fakes.FakeAgent.create_agents(count=2)
+
     def setUp(self):
         super(TestAgentDelete, self).setUp()
 
-        self.agents_mock.get.return_value = self.fake_agent
+        self.agents_mock.get.return_value = self.fake_agents
         self.cmd = agent.DeleteAgent(self.app, None)
 
-    def test_one_agent_delete(self):
+    def test_delete_one_agent(self):
         arglist = [
-            'test'
+            self.fake_agents[0].agent_id
         ]
 
         verifylist = [
-            ('id', 'test'),
+            ('id', [self.fake_agents[0].agent_id]),
         ]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
         result = self.cmd.take_action(parsed_args)
-        self.agents_mock.delete.assert_called_with(parsed_args.id)
+        self.agents_mock.delete.assert_called_with(
+            self.fake_agents[0].agent_id)
         self.assertIsNone(result)
 
+    def test_delete_multiple_agents(self):
+        arglist = []
+        for n in self.fake_agents:
+            arglist.append(n.agent_id)
+        verifylist = [
+            ('id', arglist),
+        ]
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        result = self.cmd.take_action(parsed_args)
+
+        calls = []
+        for n in self.fake_agents:
+            calls.append(call(n.agent_id))
+        self.agents_mock.delete.assert_has_calls(calls)
+        self.assertIsNone(result)
+
+    def test_delete_multiple_agents_exception(self):
+        arglist = [
+            self.fake_agents[0].agent_id,
+            self.fake_agents[1].agent_id,
+            'x-y-z',
+        ]
+        verifylist = [
+            ('id', arglist),
+        ]
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        ret_delete = [
+            None,
+            None,
+            exceptions.NotFound('404')
+        ]
+        self.agents_mock.delete = mock.Mock(side_effect=ret_delete)
+
+        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
+                          parsed_args)
+        calls = [
+            call(self.fake_agents[0].agent_id),
+            call(self.fake_agents[1].agent_id),
+        ]
+        self.agents_mock.delete.assert_has_calls(calls)
+
 
 class TestAgentList(TestAgent):
 

releasenotes/notes/compute-agent-deff48988e81b30e.yaml

@@ -0,0 +1,3 @@
+---
+upgrade:
+  - Command ``compute agent delete`` now supports deleting multiple agents.