ClickHouse/tests/integration/test_user_defined_object_persistence/test.py
2022-03-22 17:39:58 +01:00

44 lines
1.2 KiB
Python

import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
instance = cluster.add_instance("instance", stay_alive=True)
@pytest.fixture(scope="module", autouse=True)
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def test_persistence():
create_function_query1 = "CREATE FUNCTION MySum1 AS (a, b) -> a + b"
create_function_query2 = "CREATE FUNCTION MySum2 AS (a, b) -> MySum1(a, b) + b"
instance.query(create_function_query1)
instance.query(create_function_query2)
assert instance.query("SELECT MySum1(1,2)") == "3\n"
assert instance.query("SELECT MySum2(1,2)") == "5\n"
instance.restart_clickhouse()
assert instance.query("SELECT MySum1(1,2)") == "3\n"
assert instance.query("SELECT MySum2(1,2)") == "5\n"
instance.query("DROP FUNCTION MySum2")
instance.query("DROP FUNCTION MySum1")
instance.restart_clickhouse()
assert "Unknown function MySum1" in instance.query_and_get_error(
"SELECT MySum1(1, 2)"
)
assert "Unknown function MySum2" in instance.query_and_get_error(
"SELECT MySum2(1, 2)"
)