ClickHouse/tests/integration/test_default_database_on_cluster/test.py

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import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
ch1 = cluster.add_instance('ch1',
main_configs=["configs/config.d/clusters.xml", "configs/config.d/distributed_ddl.xml"],
with_zookeeper=True)
ch2 = cluster.add_instance('ch2',
main_configs=["configs/config.d/clusters.xml", "configs/config.d/distributed_ddl.xml"],
with_zookeeper=True)
ch3 = cluster.add_instance('ch3',
main_configs=["configs/config.d/clusters.xml", "configs/config.d/distributed_ddl.xml"],
with_zookeeper=True)
ch4 = cluster.add_instance('ch4',
main_configs=["configs/config.d/clusters.xml", "configs/config.d/distributed_ddl.xml"],
with_zookeeper=True)
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
ch1.query("CREATE DATABASE test_default_database ON CLUSTER 'cluster';")
yield cluster
finally:
cluster.shutdown()
def test_default_database_on_cluster(started_cluster):
ch1.query(database='test_default_database',
sql="CREATE TABLE test_local_table ON CLUSTER 'cluster' (column UInt8) ENGINE = Memory;")
for node in [ch1, ch2, ch3, ch4]:
assert node.query("SHOW TABLES FROM test_default_database FORMAT TSV") == "test_local_table\n"
ch1.query(database='test_default_database',
sql="CREATE TABLE test_distributed_table ON CLUSTER 'cluster' (column UInt8) ENGINE = Distributed(cluster, currentDatabase(), 'test_local_table');")
for node in [ch1, ch2, ch3, ch4]:
assert node.query(
"SHOW TABLES FROM test_default_database FORMAT TSV") == "test_distributed_table\ntest_local_table\n"
assert node.query(
"SHOW CREATE TABLE test_default_database.test_distributed_table FORMAT TSV") == "CREATE TABLE test_default_database.test_distributed_table\\n(\\n `column` UInt8\\n)\\nENGINE = Distributed(\\'cluster\\', \\'test_default_database\\', \\'test_local_table\\')\n"