6
0
mirror of https://github.com/FirebirdSQL/firebird-qa.git synced 2025-01-22 21:43:06 +01:00
firebird-qa/tests/bugs/core_3881_test.py

90 lines
3.6 KiB
Python

#coding:utf-8
#
# id: bugs.core_3881
# title: Extend the error reported for index/constraint violations to include the problematic key value
# decription:
# tracker_id: CORE-3881
# min_versions: ['2.5.3']
# versions: 2.5.3
# qmid: None
import pytest
from firebird.qa import db_factory, isql_act, Action
# version: 2.5.3
# resources: None
substitutions_1 = [('-At trigger.*', '')]
init_script_1 = """"""
db_1 = db_factory(page_size=4096, sql_dialect=3, init=init_script_1)
test_script_1 = """
recreate table tmain(
id int constraint tmain_pk primary key using index tmain_pk
,mka int
,mkb int
,constraint tmain_mka_mkb_constraint_unq unique(mka, mkb) using index tmain_mka_mkb_constraint_unq
,constraint tmain_fka foreign key (mka) references tmain(id) on update set null using index tmain_fka
,constraint tmain_fkb foreign key (mkb) references tmain(id) on update set null using index tmain_fkb
);
create unique descending index tmain_difference_unq_idx on tmain computed by( (coalesce(mka,0) - coalesce(mkb,0)) );
commit;
insert into tmain(id, mka, mkb) values( 100, 100, null);
insert into tmain(id, mka, mkb) values( 200, null, 200);
insert into tmain(id, mka, mkb) values( 300, 200, null);
commit;
-- This statement should violate primary key constraint:
insert into tmain(id, mka, mkb) select 600-id, 600-id, mkb from tmain where id<>200;
-- This will violate unique constraint `tmain_mka_mkb_constraint_unq` defined on two nullable fields:(mka, mkb):
insert into tmain(id, mka, mkb) values(500, null,200);
-- This will violate unique computed-by index `tmain_difference_unq_idx` because NULLS are treated in its expression as ZEROES:
update tmain set mka=null, mkb=null;
-- This will violate unique constraint `tmain_mka_mkb_constraint_unq` defined on two nullable fields:(mka, mkb):
update tmain set mka=coalesce(mka, 200), mkb=coalesce(mkb, 200);
-- This will force CASCADE trigger to make updating values in fields `mka` and `mkb` to NULLS.
-- But it means that these NULLS will be treated as ZEROEs in expression of computed-by index `tmain_difference_unq_idx`
-- and thus again will violate its uniquness:
update tmain set id=0 where id=200; -- uniq idx tmain_difference_unq_idx, At trigger 'CHECK_nn'
"""
act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
expected_stderr_1 = """
Statement failed, SQLSTATE = 23000
violation of PRIMARY or UNIQUE KEY constraint "TMAIN_PK" on table "TMAIN"
-Problematic key value is ("ID" = 300)
Statement failed, SQLSTATE = 23000
violation of PRIMARY or UNIQUE KEY constraint "TMAIN_MKA_MKB_CONSTRAINT_UNQ" on table "TMAIN"
-Problematic key value is ("MKA" = NULL, "MKB" = 200)
Statement failed, SQLSTATE = 23000
attempt to store duplicate value (visible to active transactions) in unique index "TMAIN_DIFFERENCE_UNQ_IDX"
-Problematic key value is (<expression> = 0)
Statement failed, SQLSTATE = 23000
violation of PRIMARY or UNIQUE KEY constraint "TMAIN_MKA_MKB_CONSTRAINT_UNQ" on table "TMAIN"
-Problematic key value is ("MKA" = 200, "MKB" = 200)
Statement failed, SQLSTATE = 23000
attempt to store duplicate value (visible to active transactions) in unique index "TMAIN_DIFFERENCE_UNQ_IDX"
-Problematic key value is (<expression> = 0)
-At trigger 'CHECK_2'
"""
@pytest.mark.version('>=2.5.3')
def test_1(act_1: Action):
act_1.expected_stderr = expected_stderr_1
act_1.execute()
assert act_1.clean_expected_stderr == act_1.clean_stderr