1 files changed, 18 insertions, 0 deletions
diff --git a/troveclient/tests/osc/v1/test_database_instances.py b/troveclient/tests/osc/v1/test_database_instances.py
index 524e30c..488a835 100644
--- a/troveclient/tests/osc/v1/test_database_instances.py
+++ b/troveclient/tests/osc/v1/test_database_instances.py
@@ -284,6 +284,24 @@ class TestDatabaseInstanceEnableLog(TestInstances):
                                                            'log_name')
 
 
+class TestDatabaseInstancePromoteToReplicaSource(TestInstances):
+
+    def setUp(self):
+        super(TestDatabaseInstancePromoteToReplicaSource, self).setUp()
+        self.cmd = database_instances.PromoteDatabaseInstanceToReplicaSource(
+            self.app, None)
+
+    @mock.patch.object(utils, 'find_resource')
+    def test_instance_promote_to_replica_source(self, mock_find):
+        args = ['instance']
+        mock_find.return_value = args[0]
+        parsed_args = self.check_parser(self.cmd, args, [])
+        result = self.cmd.take_action(parsed_args)
+        self.instance_client.promote_to_replica_source.assert_called_with(
+            'instance')
+        self.assertIsNone(result)
+
+
 class TestDatabaseInstanceRestart(TestInstances):
 
     def setUp(self):