Add functional tests for volume service list/set

This patch adds functional coverage for the 'volume service list' and
'volume service set' commands. It covers filtering by host and service,
long output, and enabling/disabling a service with a disabled reason.

Change-Id: I3810f6422ac2cadf3ae7d0629d5d2ba4590cc31d
Signed-off-by: ljy2855 <ljy2855@gmail.com>

Author: cocopam73

openstackclient/tests/functional/volume/v3/test_service.py

@@ -0,0 +1,55 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+from openstackclient.tests.functional.volume.v3 import common
+
+
+class VolumeServiceTests(common.BaseVolumeTests):
+    """Functional tests for 'openstack volume service'."""
+
+    def test_volume_service(self):
+        """Verify listing works and host/service filters narrow results."""
+
+        # List all services and ensure we have at least one cinder-volume
+        rows = self.openstack('volume service list', parse_output=True)
+        self.assertTrue(rows, 'no volume services returned')
+
+        # Pick one row for filter checks
+        row = rows[0]
+        host = row['Host']
+        binary = row['Binary']
+        self.assertIsNotNone(host)
+        self.assertIsNotNone(binary)
+
+        # Filter by host+service should return matching entries only
+        filtered = self.openstack(
+            'volume service list --host ' + host + ' --service ' + binary,
+            parse_output=True,
+        )
+        self.assertTrue(filtered, 'filtered list is empty')
+        for r in filtered:
+            self.assertEqual(host, r['Host'])
+            self.assertEqual(binary, r['Binary'])
+
+        # --long should include additional details but at least must succeed
+        long_rows = self.openstack(
+            'volume service list --long --host '
+            + host
+            + ' --service '
+            + binary,
+            parse_output=True,
+        )
+        self.assertEqual(1, len(long_rows))
+        # Ensure disabled reason column exists (value may be None)
+        lr0 = long_rows[0]
+        self.assertIn('Disabled Reason', lr0)