# pylint: disable=line-too-long # pylint: disable=unused-argument # pylint: disable=redefined-outer-name import pytest from helpers.cluster import ClickHouseCluster cluster = ClickHouseCluster(__file__) upstream_node = cluster.add_instance("upstream_node", allow_analyzer=False) old_node = cluster.add_instance( "old_node", image="clickhouse/clickhouse-server", tag="22.5.1.2079", with_installed_binary=True, allow_analyzer=False, ) @pytest.fixture(scope="module") def start_cluster(): try: cluster.start() yield cluster finally: cluster.shutdown() def test_old_client_compatible(start_cluster): old_node.query("INSERT INTO FUNCTION null('foo String') VALUES ('foo')('bar')") old_node.query( "INSERT INTO FUNCTION null('foo String') VALUES ('foo')('bar')", host=upstream_node.ip_address, ) def test_new_client_compatible(start_cluster): upstream_node.query( "INSERT INTO FUNCTION null('foo String') VALUES ('foo')('bar')", host=old_node.ip_address, ) upstream_node.query("INSERT INTO FUNCTION null('foo String') VALUES ('foo')('bar')")