ClickHouse/tests/queries/query_test.py

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import pytest
import difflib
import os
import random
import string
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import subprocess
import sys
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def check_result(result, error, return_code, reference, replace_map):
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for old, new in replace_map.items():
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result = result.replace(old.encode('utf-8'), new.encode('utf-8'))
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if return_code != 0:
try:
print(error.decode('utf-8'), file=sys.stderr)
except UnicodeDecodeError:
print(error.decode('latin1'), file=sys.stderr) # encoding with 1 symbol per 1 byte, covering all values
pytest.fail('Client died unexpectedly with code {code}'.format(code=return_code), pytrace=False)
elif result != reference:
pytest.fail("Query output doesn't match reference:{eol}{diff}".format(
eol=os.linesep,
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diff=os.linesep.join(l.strip() for l in difflib.unified_diff(reference.decode('utf-8').splitlines(),
result.decode('utf-8').splitlines(),
fromfile='expected', tofile='actual'))),
pytrace=False)
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def run_client(bin_prefix, port, query, reference, replace_map={}):
# We can't use `text=True` since some tests may return binary data
client = subprocess.Popen([bin_prefix + '-client', '--port', str(port), '-m', '-n', '--testmode', '--use_antlr_parser=1'],
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stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
result, error = client.communicate(query.encode('utf-8'))
assert client.returncode is not None, "Client should exit after processing all queries"
check_result(result, error, client.returncode, reference, replace_map)
def run_shell(bin_prefix, server, database, path, reference, replace_map={}):
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env = {
'CLICKHOUSE_BINARY': bin_prefix,
'CLICKHOUSE_DATABASE': database,
'CLICKHOUSE_PORT_TCP': str(server.tcp_port),
'CLICKHOUSE_PORT_TCP_SECURE': str(server.tcps_port),
'CLICKHOUSE_PORT_HTTP': str(server.http_port),
'CLICKHOUSE_PORT_INTERSERVER': str(server.inter_port),
'CLICKHOUSE_TMP': server.tmp_dir,
'CLICKHOUSE_CONFIG_CLIENT': server.client_config
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}
shell = subprocess.Popen([path], env=env, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
result, error = shell.communicate()
assert shell.returncode is not None, "Script should exit after executing all commands"
check_result(result, error, shell.returncode, reference, replace_map)
def random_str(length=10):
alphabet = string.ascii_lowercase + string.digits
return ''.join(random.choice(alphabet) for _ in range(length))
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def test_sql_query(bin_prefix, sql_query, standalone_server):
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tcp_port = standalone_server.tcp_port
query_path = sql_query + ".sql"
reference_path = sql_query + ".reference"
if not os.path.exists(reference_path):
pytest.skip('No .reference file found')
with open(query_path, 'r') as file:
query = file.read()
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with open(reference_path, 'rb') as file:
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reference = file.read()
random_name = 'test_{random}'.format(random=random_str())
query = 'CREATE DATABASE {random}; USE {random}; {query}'.format(random=random_name, query=query)
run_client(bin_prefix, tcp_port, query, reference, {random_name: 'default'})
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query = "SELECT 'SHOW ORPHANED TABLES'; SELECT name FROM system.tables WHERE database != 'system' ORDER BY (database, name);"
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run_client(bin_prefix, tcp_port, query, b'SHOW ORPHANED TABLES\n')
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query = 'DROP DATABASE {random};'.format(random=random_name)
run_client(bin_prefix, tcp_port, query, b'')
query = "SELECT 'SHOW ORPHANED DATABASES'; SHOW DATABASES;"
run_client(bin_prefix, tcp_port, query, b'SHOW ORPHANED DATABASES\n_temporary_and_external_tables\ndefault\nsystem\n')
def test_shell_query(bin_prefix, shell_query, standalone_server):
tcp_port = standalone_server.tcp_port
shell_path = shell_query + ".sh"
reference_path = shell_query + ".reference"
if not os.path.exists(reference_path):
pytest.skip('No .reference file found')
with open(reference_path, 'rb') as file:
reference = file.read()
random_name = 'test_{random}'.format(random=random_str())
query = 'CREATE DATABASE {random};'.format(random=random_name)
run_client(bin_prefix, tcp_port, query, b'')
run_shell(bin_prefix, standalone_server, random_name, shell_path, reference, {random_name: 'default'})
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query = "SELECT 'SHOW ORPHANED TABLES'; SELECT name FROM system.tables WHERE database != 'system' ORDER BY (database, name);"
run_client(bin_prefix, tcp_port, query, b'SHOW ORPHANED TABLES\n')
query = 'DROP DATABASE {random};'.format(random=random_name)
run_client(bin_prefix, tcp_port, query, b'')
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query = "SELECT 'SHOW ORPHANED DATABASES'; SHOW DATABASES;"
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run_client(bin_prefix, tcp_port, query, b'SHOW ORPHANED DATABASES\n_temporary_and_external_tables\ndefault\nsystem\n')