Added limit/marker support for config group lists

Added support in the CLI for limit and marker to the
configuration-list and configuration-instances command.

Changed the python API to use the _pagination function
instead of _list.

Modified the unit tests to test this change.

Change-Id: I46d8258eab81d1510707244547e31cd5707a22ce
Closes-Bug: bug/1638352

releasenotes/notes/paginate-config-list-c311ce3c5394d437.yaml

@@ -0,0 +1,3 @@
+features:
+  - Added pagination support (limit and marker) to the CLI for
+    configuration-list and configuration-instances.

troveclient/tests/test_configurations.py

@@ -96,11 +96,13 @@ class ConfigurationsTest(testtools.TestCase):
         self.assertRaises(Exception, self.configurations.delete, 34)
 
     def test_list(self):
-        def side_effect_func(path, user, limit, marker):
-            return path
-
-        self.configurations._list = mock.Mock(side_effect=side_effect_func)
-        self.assertEqual('/configurations', self.configurations.list(1))
+        page_mock = mock.Mock()
+        self.configurations._paginated = page_mock
+        limit = "test-limit"
+        marker = "test-marker"
+        self.configurations.list(limit, marker)
+        page_mock.assert_called_with("/configurations", "configurations",
+                                     limit, marker)
 
     def test_get(self):
         def side_effect_func(path, config):
@@ -111,11 +113,15 @@ class ConfigurationsTest(testtools.TestCase):
                          self.configurations.get(123))
 
     def test_instances(self):
-        def side_effect_func(path, config, limit, marker):
-            return path
-        self.configurations._list = mock.Mock(side_effect=side_effect_func)
-        self.assertEqual('/configurations/configuration1/instances',
-                         self.configurations.instances(123))
+        page_mock = mock.Mock()
+        self.configurations._paginated = page_mock
+        limit = "test-limit"
+        marker = "test-marker"
+        configuration = "configuration1"
+        self.configurations.instances(configuration, limit, marker)
+        page_mock.assert_called_with(
+            "/configurations/" + configuration + "/instances",
+            "instances", limit, marker)
 
     def test_update(self):
         self.configurations.api.client.put = self._get_mock_method()

troveclient/v1/configurations.py

@@ -43,16 +43,17 @@ class Configurations(base.ManagerWithFind):
 
         :rtype: :class:`Configurations`
         """
-        return self._list("/configurations/%s/instances" %
-                          base.getid(configuration),
-                          "instances", limit, marker)
+        return self._paginated("/configurations/%s/instances" %
+                               base.getid(configuration),
+                               "instances", limit, marker)
 
     def list(self, limit=None, marker=None):
         """Get a list of all configurations.
 
         :rtype: list of :class:`Configurations`.
         """
-        return self._list("/configurations", "configurations", limit, marker)
+        return self._paginated("/configurations", "configurations",
+                               limit, marker)
 
     def create(self, name, values, description=None, datastore=None,
                datastore_version=None):

troveclient/v1/shell.py

@@ -1579,18 +1579,32 @@ def do_configuration_patch(cs, args):
 
 @utils.arg('configuration_group', metavar='<configuration_group>',
            help=_('ID or name of the configuration group.'))
+@utils.arg('--limit', metavar='<limit>', type=int, default=None,
+           help=_('Limit the number of results displayed.'))
+@utils.arg('--marker', metavar='<ID>', type=str, default=None,
+           help=_('Begin displaying the results for IDs greater than the '
+                  'specified marker. When used with --limit, set this to '
+                  'the last ID displayed in the previous run.'))
 @utils.service_type('database')
 def do_configuration_instances(cs, args):
     """Lists all instances associated with a configuration group."""
     configuration = _find_configuration(cs, args.configuration_group)
-    params = cs.configurations.instances(configuration)
+    params = cs.configurations.instances(configuration,
+                                         limit=args.limit,
+                                         marker=args.marker)
     utils.print_list(params, ['id', 'name'])
 
 
+@utils.arg('--limit', metavar='<limit>', type=int, default=None,
+           help=_('Limit the number of results displayed.'))
+@utils.arg('--marker', metavar='<ID>', type=str, default=None,
+           help=_('Begin displaying the results for IDs greater than the '
+                  'specified marker. When used with --limit, set this to '
+                  'the last ID displayed in the previous run.'))
 @utils.service_type('database')
 def do_configuration_list(cs, args):
     """Lists all configuration groups."""
-    config_grps = cs.configurations.list()
+    config_grps = cs.configurations.list(limit=args.limit, marker=args.marker)
     utils.print_list(config_grps, [
         'id', 'name', 'description',
         'datastore_name', 'datastore_version_name'])