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firebird-qa/tests/bugs/core_2660_test.py

45 lines
972 B
Python

#coding:utf-8
#
# id: bugs.core_2660
# title: COUNT(*) incorrectly returns 0 when a condition of an outer join doesn't match
# decription:
# tracker_id: CORE-2660
# min_versions: ['2.5.0']
# versions: 3.0
# qmid: None
import pytest
from firebird.qa import db_factory, isql_act, Action
# version: 3.0
# resources: None
substitutions_1 = []
init_script_1 = """"""
db_1 = db_factory(page_size=4096, charset='UTF8', sql_dialect=3, init=init_script_1)
test_script_1 = """select b.*
from rdb$database a
left join (
select count(*) c
from rdb$database
) b on 1 = 0;"""
act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
expected_stdout_1 = """
C
=====================
<null>
"""
@pytest.mark.version('>=3.0')
def test_1(act_1: Action):
act_1.expected_stdout = expected_stdout_1
act_1.execute()
assert act_1.clean_stdout == act_1.clean_expected_stdout