Support getting instances for a project

Change-Id: I1b3e8dce864740221722070a710f5a2f867d6c4b

troveclient/osc/v1/database_instances.py

@@ -134,12 +134,20 @@ class ListDatabaseInstances(command.Lister):
             default=False,
             help=_("Include database instances of all projects (admin only)")
         )
+        parser.add_argument(
+            '--project-id',
+            help=_("Include database instances of a specific project "
+                   "(admin only)")
+        )
         return parser
 
     def take_action(self, parsed_args):
-        if parsed_args.all_projects:
+        extra_params = {}
+        if parsed_args.all_projects or parsed_args.project_id:
             db_instances = self.app.client_manager.database.mgmt_instances
             cols = self.admin_columns
+            if parsed_args.project_id:
+                extra_params['project_id'] = parsed_args.project_id
         else:
             db_instances = self.app.client_manager.database.instances
             cols = self.columns
@@ -147,7 +155,8 @@ class ListDatabaseInstances(command.Lister):
         instances = db_instances.list(
             limit=parsed_args.limit,
             marker=parsed_args.marker,
-            include_clustered=parsed_args.include_clustered
+            include_clustered=parsed_args.include_clustered,
+            **extra_params
         )
         if instances:
             instances = set_attributes_for_print(instances)

troveclient/tests/osc/utils.py

@@ -12,10 +12,12 @@
 #
 
 import os
+import random
+import sys
 from unittest import mock
+import uuid
 
 import fixtures
-import sys
 import testtools
 
 from troveclient.tests.osc import fakes
@@ -35,6 +37,30 @@ class TestCase(testtools.TestCase):
             stderr = self.useFixture(fixtures.StringStream("stderr")).stream
             self.useFixture(fixtures.MonkeyPatch("sys.stderr", stderr))
 
+    @classmethod
+    def random_name(cls, name='', prefix=None):
+        """Generate a random name that inclues a random number.
+
+        :param str name: The name that you want to include
+        :param str prefix: The prefix that you want to include
+
+        :return: a random name. The format is
+                 '<prefix>-<name>-<random number>'.
+                 (e.g. 'prefixfoo-namebar-154876201')
+        :rtype: string
+        """
+        randbits = str(random.randint(1, 0x7fffffff))
+        rand_name = randbits
+        if name:
+            rand_name = name + '-' + rand_name
+        if prefix:
+            rand_name = prefix + '-' + rand_name
+        return rand_name
+
+    @classmethod
+    def random_uuid(cls):
+        return str(uuid.uuid4())
+
 
 class TestCommand(TestCase):
     """Test cliff command classes"""

troveclient/tests/osc/v1/test_database_instances.py

@@ -88,6 +88,22 @@ class TestInstanceList(TestInstances):
         ]
         self.assertEqual(expected_instances, instances)
 
+    def test_instance_list_for_project(self):
+        self.mgmt_client.list.return_value = common.Paginated(self.data)
+
+        project_id = self.random_uuid()
+        parsed_args = self.check_parser(self.cmd, ["--project-id", project_id],
+                                        [("project_id", project_id)])
+        self.cmd.take_action(parsed_args)
+
+        expected_params = {
+            'include_clustered': False,
+            'limit': None,
+            'marker': None,
+            'project_id': project_id
+        }
+        self.mgmt_client.list.assert_called_once_with(**expected_params)
+
 
 class TestInstanceShow(TestInstances):
     values = ([{'address': '10.0.0.13', 'type': 'private'}], [], 'mysql',