Functional tests for openstackclient help messages

Add tests for list and description for Server commands:
 - Check server commands in main help message.
 - Check list of server-related commands only.
Commands:
  server add security group,
  server add volume,
  server create,
  server delete,
  server dump create,
  server image create,
  server list,
  server lock,
  server migrate,
  server pause,
  server reboot,
  server rebuild,
  server remove security group,
  server remove volume,
  server rescue,
  server resize,
  server resume,
  server set,
  server shelve,
  server show,
  server ssh,
  server start,
  server stop,
  server suspend,
  server unlock,
  server unpause,
  server unrescue,
  server unset,
  server unshelve.

Change-Id: Ib4bf9ab0264fb482d36cf5688c0f939bcd2cb6d8

Author: kromanenko

functional/tests/common/test_help.py

@@ -0,0 +1,65 @@
+#    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 functional.common import test
+
+
+class HelpTests(test.TestCase):
+    """Functional tests for openstackclient help output."""
+
+    SERVER_COMMANDS = [
+        ('server add security group', 'Add security group to server'),
+        ('server add volume', 'Add volume to server'),
+        ('server create', 'Create a new server'),
+        ('server delete', 'Delete server(s)'),
+        ('server dump create', 'Create a dump file in server(s)'),
+        ('server image create',
+         'Create a new disk image from a running server'),
+        ('server list', 'List servers'),
+        ('server lock',
+         'Lock server(s). '
+         'A non-admin user will not be able to execute actions'),
+        ('server migrate', 'Migrate server to different host'),
+        ('server pause', 'Pause server(s)'),
+        ('server reboot', 'Perform a hard or soft server reboot'),
+        ('server rebuild', 'Rebuild server'),
+        ('server remove security group', 'Remove security group from server'),
+        ('server remove volume', 'Remove volume from server'),
+        ('server rescue', 'Put server in rescue mode'),
+        ('server resize', 'Scale server to a new flavor'),
+        ('server resume', 'Resume server(s)'),
+        ('server set', 'Set server properties'),
+        ('server shelve', 'Shelve server(s)'),
+        ('server show', 'Show server details'),
+        ('server ssh', 'SSH to server'),
+        ('server start', 'Start server(s).'),
+        ('server stop', 'Stop server(s).'),
+        ('server suspend', 'Suspend server(s)'),
+        ('server unlock', 'Unlock server(s)'),
+        ('server unpause', 'Unpause server(s)'),
+        ('server unrescue', 'Restore server from rescue mode'),
+        ('server unset', 'Unset server properties'),
+        ('server unshelve', 'Unshelve server(s)')
+    ]
+
+    def test_server_commands_main_help(self):
+        """Check server commands in main help message."""
+        raw_output = self.openstack('help')
+        for command, description in self.SERVER_COMMANDS:
+            self.assertIn(command, raw_output)
+            self.assertIn(description, raw_output)
+
+    def test_server_only_help(self):
+        """Check list of server-related commands only."""
+        raw_output = self.openstack('help server')
+        for command in [row[0] for row in self.SERVER_COMMANDS]:
+            self.assertIn(command, raw_output)