text: from ravendb.serverwide.commands import GetDatabaseTopologyCommand
  from ravendb.tests.test_base import TestBase
  
  
  class TestGetTopology(TestBase):
      def setUp(self):
          super(TestGetTopology, self).setUp()
  
      def test_get_topology(self):
          command = GetDatabaseTopologyCommand()
          self.store.get_request_executor().execute_command(command)
          result = command.result
          self.assertIsNotNone(result)
          self.assertIsNotNone(result.etag)
          self.assertEqual(len(result.nodes), 1)
  
          server_node = result.nodes[0]
          self.assertEqual(server_node.url, self.store.urls[0])
          self.assertEqual(server_node.database, self.store.database)
          self.assertEqual(server_node.cluster_tag, "A")
          self.assertEqual(server_node.server_role, "Member")
  