Add datastore-list to OSC

This change adds database support to the python-openstackclient
project for the datastore-list command.

The trove command datastore-list is now:
    openstack datastore list

Change-Id: I4804e6deae350f05abdb66a6d8813e5581f2b22c
Partially-Implements: trove-support-in-python-openstackclient

releasenotes/notes/add-datastore-list-to-osc-007ff4144f630c57.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - The command ``trove datastore-list`` is now available to use in
+    the python-openstackclient CLI as ``openstack datastore list``

setup.cfg

@@ -38,6 +38,7 @@ openstack.database.v1 =
     database_limit_list = troveclient.osc.v1.database_limits:ListDatabaseLimits
     database_list = troveclient.osc.v1.databases:ListDatabases
     database_user_list = troveclient.osc.v1.database_users:ListDatabaseUsers
+    datastore_list = troveclient.osc.v1.datastores:ListDatastores
 
 
 [build_sphinx]

troveclient/osc/v1/datastores.py

@@ -0,0 +1,30 @@
+#    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.
+
+"""Database v1 Datastores action implementations"""
+
+from osc_lib.command import command
+from osc_lib import utils
+
+from troveclient.i18n import _
+
+
+class ListDatastores(command.Lister):
+
+    _description = _("List available datastores")
+    columns = ['ID', 'Name']
+
+    def take_action(self, parsed_args):
+        datastore_client = self.app.client_manager.database.datastores
+        datastores = datastore_client.list()
+        ds = [utils.get_item_properties(d, self.columns) for d in datastores]
+        return self.columns, ds

troveclient/tests/osc/v1/fakes.py

@@ -18,6 +18,7 @@ from troveclient.tests.osc import utils
 from troveclient.v1 import backups
 from troveclient.v1 import clusters
 from troveclient.v1 import databases
+from troveclient.v1 import datastores
 from troveclient.v1 import flavors
 from troveclient.v1 import instances
 from troveclient.v1 import limits
@@ -92,3 +93,10 @@ class FakeDatabases(object):
 
     def get_databases_1(self):
         return databases.Database(None, self.fake_databases[0])
+
+
+class FakeDatastores(object):
+    fake_datastores = fakes.FakeHTTPClient().get_datastores()[2]['datastores']
+
+    def get_datastores_d_123(self):
+        return datastores.Datastore(None, self.fake_datastores[0])

troveclient/tests/osc/v1/test_datastores.py

@@ -0,0 +1,41 @@
+#   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 troveclient import common
+from troveclient.osc.v1 import datastores
+from troveclient.tests.osc.v1 import fakes
+
+
+class TestDatastores(fakes.TestDatabasev1):
+    fake_datastores = fakes.FakeDatastores()
+
+    def setUp(self):
+        super(TestDatastores, self).setUp()
+        self.datastore_client = self.app.client_manager.database.datastores
+
+
+class TestDatastoreList(TestDatastores):
+    columns = datastores.ListDatastores.columns
+    values = ('d-123', 'mysql')
+
+    def setUp(self):
+        super(TestDatastoreList, self).setUp()
+        self.cmd = datastores.ListDatastores(self.app, None)
+        data = [self.fake_datastores.get_datastores_d_123()]
+        self.datastore_client.list.return_value = common.Paginated(data)
+
+    def test_datastore_list_defaults(self):
+        parsed_args = self.check_parser(self.cmd, [], [])
+        columns, data = self.cmd.take_action(parsed_args)
+        self.datastore_client.list.assert_called_once_with()
+        self.assertEqual(self.columns, columns)
+        self.assertEqual([self.values], data)