ClickHouse/tests/integration/test_settings_constraints/test.py

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import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
instance = cluster.add_instance("instance", user_configs=["configs/users.xml"])
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@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
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def test_system_settings(started_cluster):
assert (
instance.query(
"SELECT name, value, min, max, readonly from system.settings WHERE name = 'force_index_by_date'"
)
== "force_index_by_date\t0\t\\N\t\\N\t1\n"
)
assert (
instance.query(
"SELECT name, value, min, max, readonly from system.settings WHERE name = 'max_memory_usage'"
)
== "max_memory_usage\t10000000000\t5000000000\t20000000000\t0\n"
)
assert (
instance.query(
"SELECT name, value, min, max, readonly from system.settings WHERE name = 'readonly'"
)
== "readonly\t0\t\\N\t\\N\t0\n"
)
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assert (
instance.query(
"SELECT name, value, min, max, readonly from system.settings WHERE name = 'alter_sync'"
)
== "alter_sync\t2\t\\N\t\\N\t1\n"
)
def test_system_constraints(started_cluster):
assert_query_settings(
instance,
"SELECT 1",
settings={"readonly": 0},
exception="Cannot modify 'readonly'",
user="readonly_user",
)
assert_query_settings(
instance,
"SELECT 1",
settings={"allow_ddl": 1},
exception="Cannot modify 'allow_ddl'",
user="no_dll_user",
)
def test_read_only_constraint(started_cluster):
# Default value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='force_index_by_date'",
settings={},
result="0",
)
# Invalid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='force_index_by_date'",
settings={"force_index_by_date": 1},
result=None,
exception="Setting force_index_by_date should not be changed",
)
# Invalid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name= 'replication_alter_partitions_sync'",
settings={"replication_alter_partitions_sync": 1},
result=None,
exception="Setting alter_sync should not be changed",
)
# Invalid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name= 'alter_sync'",
settings={"alter_sync": 1},
result=None,
exception="Setting alter_sync should not be changed",
)
def test_min_constraint(started_cluster):
# Default value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='max_memory_usage'",
{},
result="10000000000",
)
# Valid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='max_memory_usage'",
settings={"max_memory_usage": 5000000000},
result="5000000000",
)
# Invalid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='max_memory_usage'",
settings={"max_memory_usage": 4999999999},
result=None,
exception="Setting max_memory_usage shouldn't be less than 5000000000",
)
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def test_max_constraint(started_cluster):
# Default value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='max_memory_usage'",
{},
result="10000000000",
)
# Valid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='max_memory_usage'",
settings={"max_memory_usage": 20000000000},
result="20000000000",
)
# Invalid value
assert_query_settings(
instance,
"SELECT value FROM system.settings WHERE name='max_memory_usage'",
settings={"max_memory_usage": 20000000001},
result=None,
exception="Setting max_memory_usage shouldn't be greater than 20000000000",
)
def assert_query_settings(
instance, query, settings, result=None, exception=None, user=None
):
"""
Try and send the query with custom settings via all available methods:
1. TCP Protocol with settings packet
2. HTTP Protocol with settings params
3. TCP Protocol with session level settings
4. TCP Protocol with query level settings
"""
if not settings:
settings = {}
# tcp level settings
if exception:
assert exception in instance.query_and_get_error(
query, settings=settings, user=user
)
else:
assert instance.query(query, settings=settings, user=user).strip() == result
# http level settings
if exception:
assert exception in instance.http_query_and_get_error(
query, params=settings, user=user
)
else:
assert instance.http_query(query, params=settings, user=user).strip() == result
# session level settings
queries = ""
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for k, v in list(settings.items()):
queries += "SET {}={};\n".format(k, v)
queries += query
if exception:
assert exception in instance.query_and_get_error(queries, user=user)
else:
assert instance.query(queries, user=user).strip() == result
if settings:
query += " SETTINGS "
for ix, (k, v) in enumerate(settings.items()):
query += "{} = {}".format(k, v)
if ix != len(settings) - 1:
query += ", "
if exception:
assert exception in instance.query_and_get_error(queries, user=user)
else:
assert instance.query(queries, user=user).strip() == result