Router: Add "router show" command using SDK

This patch adds "router show" command to osc using sdk.

Change-Id: Idb0f7f0376926e97f9f70a52ef21511e7ffa9d92
Implements: blueprint neutron-client
Partial-bug: #1519503

Author: tang-chen

doc/source/command-objects/router.rst

@@ -5,7 +5,7 @@ router
 Network v2
 
 router create
---------------
+-------------
 
 Create new router
 
@@ -45,7 +45,7 @@ Create new router
     New router name
 
 router delete
---------------
+-------------
 
 Delete router(s)
 
@@ -113,3 +113,19 @@ Set router properties
 .. describe:: <router>
 
     Router to modify (name or ID)
+
+router show
+-----------
+
+Display router details
+
+.. program:: router show
+.. code:: bash
+
+    os router show
+        <router>
+
+.. _router_show-router:
+.. describe:: <router>
+
+    Router to display (name or ID)

openstackclient/network/v2/router.py

@@ -273,3 +273,26 @@ def take_action(self, parsed_args):
             raise exceptions.CommandError(msg)
 
         client.update_router(obj, **attrs)
+
+
+class ShowRouter(show.ShowOne):
+    """Display router details"""
+
+    log = logging.getLogger(__name__ + '.ShowRouter')
+
+    def get_parser(self, prog_name):
+        parser = super(ShowRouter, self).get_parser(prog_name)
+        parser.add_argument(
+            'router',
+            metavar="<router>",
+            help="Router to display (name or ID)"
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)' % parsed_args)
+        client = self.app.client_manager.network
+        obj = client.find_router(parsed_args.router, ignore_missing=False)
+        columns = sorted(obj.keys())
+        data = utils.get_item_properties(obj, columns, formatters=_formatters)
+        return (tuple(columns), data)

openstackclient/tests/network/v2/test_router.py

@@ -284,3 +284,61 @@ def test_set_nothing(self):
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
         self.assertRaises(exceptions.CommandError, self.cmd.take_action,
                           parsed_args)
+
+
+class TestShowRouter(TestRouter):
+
+    # The router to set.
+    _router = network_fakes.FakeRouter.create_one_router()
+
+    columns = (
+        'admin_state_up',
+        'distributed',
+        'ha',
+        'id',
+        'name',
+        'tenant_id',
+    )
+
+    data = (
+        router._format_admin_state(_router.admin_state_up),
+        _router.distributed,
+        _router.ha,
+        _router.id,
+        _router.name,
+        _router.tenant_id,
+    )
+
+    def setUp(self):
+        super(TestShowRouter, self).setUp()
+
+        self.network.find_router = mock.Mock(return_value=self._router)
+
+        # Get the command object to test
+        self.cmd = router.ShowRouter(self.app, self.namespace)
+
+    def test_show_no_options(self):
+        arglist = []
+        verifylist = []
+
+        try:
+            # Missing required args should bail here
+            self.check_parser(self.cmd, arglist, verifylist)
+        except tests_utils.ParserException:
+            pass
+
+    def test_show_all_options(self):
+        arglist = [
+            self._router.name,
+        ]
+        verifylist = [
+            ('router', self._router.name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.network.find_router.assert_called_with(self._router.name,
+                                                    ignore_missing=False)
+        self.assertEqual(tuple(self.columns), columns)
+        self.assertEqual(self.data, data)

setup.cfg

@@ -336,6 +336,7 @@ openstack.network.v2 =
     router_delete = openstackclient.network.v2.router:DeleteRouter
     router_list = openstackclient.network.v2.router:ListRouter
     router_set = openstackclient.network.v2.router:SetRouter
+    router_show = openstackclient.network.v2.router:ShowRouter
 
 openstack.object_store.v1 =
     object_store_account_set = openstackclient.object.v1.account:SetAccount