ClickHouse/tests/integration/test_storage_mongodb/test.py

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2020-06-26 14:28:00 +00:00
import pymongo
import pytest
from helpers.client import QueryRuntimeException
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node = cluster.add_instance('node', with_mongo=True)
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def get_mongo_connection():
connection_str = 'mongodb://root:clickhouse@localhost:27018'
return pymongo.MongoClient(connection_str)
def test_simple_select(started_cluster):
mongo_connection = get_mongo_connection()
db = mongo_connection['test']
db.add_user('root', 'clickhouse')
simple_mongo_table = db['simple_table']
data = []
for i in range(0, 100):
data.append({'key': i, 'data': hex(i * i)})
simple_mongo_table.insert_many(data)
node.query("CREATE TABLE simple_mongo_table(key UInt64, data String) ENGINE = MongoDB('mongo1:27017', 'test', 'simple_table', 'root', 'clickhouse')")
assert node.query("SELECT COUNT() FROM simple_mongo_table") == '100\n'
assert node.query("SELECT sum(key) FROM simple_mongo_table") == str(sum(range(0, 100))) + '\n'
assert node.query("SELECT data from simple_mongo_table where key = 42") == hex(42 * 42) + '\n'
def test_complex_data_type(started_cluster):
mongo_connection = get_mongo_connection()
db = mongo_connection['test']
db.add_user('root', 'clickhouse')
incomplete_mongo_table = db['complex_table']
data = []
for i in range(0, 100):
data.append({'key': i, 'data': hex(i * i), 'dict': {'a' : i, 'b': str(i)}})
incomplete_mongo_table.insert_many(data)
node.query("CREATE TABLE incomplete_mongo_table(key UInt64, data String) ENGINE = MongoDB('mongo1:27017', 'test', 'complex_table', 'root', 'clickhouse')")
assert node.query("SELECT COUNT() FROM incomplete_mongo_table") == '100\n'
assert node.query("SELECT sum(key) FROM incomplete_mongo_table") == str(sum(range(0, 100))) + '\n'
assert node.query("SELECT data from incomplete_mongo_table where key = 42") == hex(42 * 42) + '\n'
def test_incorrect_data_type(started_cluster):
mongo_connection = get_mongo_connection()
db = mongo_connection['test']
db.add_user('root', 'clickhouse')
strange_mongo_table = db['strange_table']
data = []
for i in range(0, 100):
data.append({'key': i, 'data': hex(i * i), 'aaaa': 'Hello'})
strange_mongo_table.insert_many(data)
node.query("CREATE TABLE strange_mongo_table(key String, data String) ENGINE = MongoDB('mongo1:27017', 'test', 'strange_table', 'root', 'clickhouse')")
with pytest.raises(QueryRuntimeException):
node.query("SELECT COUNT() FROM strange_mongo_table")
with pytest.raises(QueryRuntimeException):
node.query("SELECT uniq(key) FROM strange_mongo_table")
node.query("CREATE TABLE strange_mongo_table2(key UInt64, data String, bbbb String) ENGINE = MongoDB('mongo1:27017', 'test', 'strange_table', 'root', 'clickhouse')")
with pytest.raises(QueryRuntimeException):
node.query("SELECT bbbb FROM strange_mongo_table2")