Activate the --long option for zone list command

Activate the --long option for openstack zone list command
When this option is used, additional columns and values are displayed.
The new columns are ttl, pool_id, email, attributes, and masters.
Add test code for the new columns.

Change-Id: I67262571639623de160688afb3f9f4a9ecb81534

designateclient/tests/osc/v2/test_zone.py

@@ -70,3 +70,22 @@ class TestDesignateListZones(utils.TestCommand):
         results = list(data)
 
         self.assertEqual(2, len(results))
+
+    def test_list_zones_with_long_option(self):
+        arg_list = ['--long']
+        verify_args = [('long', True)]
+
+        body = resources.load('zone_list')
+        result = base.DesignateList()
+        result.extend(body['zones'])
+
+        self.dns_client.zones.list.return_value = result
+
+        parsed_args = self.check_parser(self.cmd, arg_list, verify_args)
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.assertIn('ttl', columns)
+        self.assertIn('pool_id', columns)
+        self.assertIn('email', columns)
+        self.assertIn('attributes', columns)
+        self.assertIn('masters', columns)

designateclient/v2/cli/zones.py

@@ -63,6 +63,13 @@ class ListZonesCommand(command.Lister):
         parser.add_argument('--description', help='Description',
                             required=False)
         parser.add_argument('--status', help='Zone Status', required=False)
+        parser.add_argument(
+            '--long',
+            help='List additional fields in output',
+            default=False,
+            action='store_true',
+            required=False
+        )
 
         common.add_all_common_options(parser)
 
@@ -95,6 +102,9 @@ class ListZonesCommand(command.Lister):
 
         cols = list(self.columns)
 
+        if parsed_args.long:
+            cols += ['ttl', 'pool_id', 'email', 'attributes', 'masters']
+
         if client.session.all_projects:
             cols.insert(1, 'project_id')