Support list commands by group name keyword

The output of current "command list" is so long, it's
very difficult for users to find out the commands
they care about.

Add "--group <group-keyword>" option to filter the commands by group
name keyword, like: --group volume, list all openstack.volume.v2
(cinder) commands

That support the scenario that users need to know the current support
commands of some OpenStack services(nova, neutron, cinder and so on) in
OSC.

Change-Id: Id673042729ad36a0cac0b81fb31a3537c24f03fc
Closes-Bug: #1666780

1 files changed, 35 insertions, 0 deletions

diff --git a/openstackclient/tests/functional/common/test_module.py b/openstackclient/tests/functional/common/test_module.py
index f4f2e952..e9e4ee3a 100644
--- a/openstackclient/tests/functional/common/test_module.py
+++ b/openstackclient/tests/functional/common/test_module.py
@@ -42,3 +42,38 @@ class ModuleTest(base.TestCase):
         cmd_output = json.loads(self.openstack('module list --all -f json'))
         for one_module in self.CLIENTS + self.LIBS:
             self.assertIn(one_module, cmd_output.keys())
+
+
+class CommandTest(base.TestCase):
+    """Functional tests for openstackclient command list."""
+    GROUPS = [
+        'openstack.volume.v2',
+        'openstack.network.v2',
+        'openstack.image.v2',
+        'openstack.identity.v3',
+        'openstack.compute.v2',
+        'openstack.common',
+        'openstack.cli',
+    ]
+
+    def test_command_list_no_option(self):
+        cmd_output = json.loads(self.openstack('command list -f json'))
+        group_names = [each.get('Command Group') for each in cmd_output]
+        for one_group in self.GROUPS:
+            self.assertIn(one_group, group_names)
+
+    def test_command_list_with_group(self):
+        input_groups = [
+            'volume',
+            'network',
+            'image',
+            'identity',
+            'compute.v2'
+        ]
+        for each_input in input_groups:
+            cmd_output = json.loads(self.openstack(
+                'command list --group %s -f json' % each_input
+            ))
+            group_names = [each.get('Command Group') for each in cmd_output]
+            for each_name in group_names:
+                self.assertIn(each_input, each_name)