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51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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instance = cluster.add_instance("instance", stay_alive=True)
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@pytest.fixture(scope="module", autouse=True)
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def started_cluster():
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try:
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cluster.start()
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yield cluster
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finally:
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cluster.shutdown()
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def test_persistence():
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create_function_query1 = "CREATE FUNCTION MySum1 AS (a, b) -> a + b"
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create_function_query2 = "CREATE FUNCTION MySum2 AS (a, b) -> MySum1(a, b) + b"
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instance.query(create_function_query1)
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instance.query(create_function_query2)
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assert instance.query("SELECT MySum1(1,2)") == "3\n"
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assert instance.query("SELECT MySum2(1,2)") == "5\n"
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instance.restart_clickhouse()
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assert instance.query("SELECT MySum1(1,2)") == "3\n"
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assert instance.query("SELECT MySum2(1,2)") == "5\n"
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instance.query("DROP FUNCTION MySum2")
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instance.query("DROP FUNCTION MySum1")
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instance.restart_clickhouse()
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error_message = instance.query_and_get_error("SELECT MySum1(1, 2)")
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assert (
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"Unknown function MySum1" in error_message
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or "Function with name 'MySum1' does not exist. In scope SELECT MySum1(1, 2)"
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in error_message
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)
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error_message = instance.query_and_get_error("SELECT MySum2(1, 2)")
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assert (
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"Unknown function MySum2" in error_message
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or "Function with name 'MySum2' does not exist. In scope SELECT MySum2(1, 2)"
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in error_message
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)
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