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Added/Updated tests\bugs\gh_7903_test.py: Checked on 6.0.0.169, 5.0.0.1292

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pavel-zotov 2023-12-04 11:40:18 +03:00
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#coding:utf-8
"""
ID: issue-7903
ISSUE: https://github.com/FirebirdSQL/firebird/issues/7903
TITLE: Unexpected Results when Using CASE-WHEN with LEFT JOIN
DESCRIPTION:
NOTES:
[04.12.2023] pzotov
Confirmed bug on 6.0.0.139
Checked on 6.0.0.169, 5.0.0.1292
"""
import pytest
from firebird.qa import *
db = db_factory()
test_script = """
recreate table t0(id int, a int);
recreate table t1(id int, b int);
insert into t0(id) values (1);
set count on;
set list on;
select 'case-1a' as msg, t0.*, t1.* from t0 natural left join t1 where case 1 when t1.id then false else true end;
select 'case-1b' as msg, t0.*, t1.* from t0 natural left join t1 where case t1.id when 1 then false else true end;
select 'case-2a' as msg, t0.*, t1.* from t0 left join t1 using(id) where case 1 when t1.id then false else true end;
select 'case-2b' as msg, t0.*, t1.* from t0 left join t1 using(id) where case t1.id when 1 then false else true end;
select 'case-3a' as msg, t0.*, t1.* from t0 left join t1 on t0.id = t1.id where case 1 when t1.id then false else true end;
select 'case-3b' as msg, t0.*, t1.* from t0 left join t1 on t0.id = t1.id where case t1.id when 1 then false else true end;
"""
act = isql_act('db', test_script)
expected_stdout = """
MSG case-1a
ID 1
A <null>
ID <null>
B <null>
Records affected: 1
MSG case-1b
ID 1
A <null>
ID <null>
B <null>
Records affected: 1
MSG case-2a
ID 1
A <null>
ID <null>
B <null>
Records affected: 1
MSG case-2b
ID 1
A <null>
ID <null>
B <null>
Records affected: 1
MSG case-3a
ID 1
A <null>
ID <null>
B <null>
Records affected: 1
MSG case-3b
ID 1
A <null>
ID <null>
B <null>
Records affected: 1
"""
@pytest.mark.version('>=5.0')
def test_1(act: Action):
act.expected_stdout = expected_stdout
act.execute(combine_output = True)
assert act.clean_stdout == act.clean_expected_stdout