firebird-qa/tests/bugs/core_5201_test.py

#coding:utf-8

"""
ID:          issue-5482
ISSUE:       5482
TITLE:       Return nonzero result code when restore fails on activating and creating deferred user index
DESCRIPTION:
  According to Alex response on letter 25-apr-2016 19:15, zero retcode returned ONLY when restore
  was done WITH '-verbose' switch, and this was fixed. When restoring was done without additional
  switches, retcode was NON zero and its value was 1.

  We create table with UNIQUE computed-by index which expression refers to other table (Firebird allows this!).
  Because other table (test_2) initially is empty, index _can_ be created. But after this we insert record into
  this table and do commit. Since that moment backup of this database will have table test_1 but its index will
  NOT be able to restore (unless '-i' switch specified).
  We will use this inability of restore index by checking 'gbak -rep -v ...' return code: it should be NON zero.
 If code will skip exception then this will mean FAIL of test.
JIRA:        CORE-5201
"""

import pytest
from pathlib import Path
from firebird.qa import *

init_script = """
    create table test_1(x int);
    create table test_2(x int);
    insert into test_1 values(1);
    insert into test_1 values(2);
    insert into test_1 values(3);
    commit;
    create unique index test_1_unq on test_1 computed by( iif( exists(select * from test_2), 1, x ) );
    commit;
    insert into test_2 values(1000);
    commit;
"""

db = db_factory(init=init_script)

act = python_act('db')

expected_stdout = """
    gbak: ERROR:attempt to store duplicate value (visible to active transactions) in unique index "TEST_1_UNQ"
    gbak: ERROR:    Problematic key value is (<expression> = 1)
"""

fbk_file = temp_file('core_5201.fbk')
tmp_db_file = temp_file('tmp_core_5201.fdb')

@pytest.mark.version('>=3.0')
def test_1(act: Action, fbk_file: Path, tmp_db_file: Path):
    with act.connect_server() as srv:
        srv.database.backup(database=act.db.db_path, backup=fbk_file)
        assert srv.readlines() == []
    #
    act.expected_stderr = 'We expect error'
    act.expected_stdout = expected_stdout
    act.gbak(switches=['-rep', '-v', str(fbk_file), str(tmp_db_file)])
    # filter stdout
    act.stdout = '\n'.join([line for line in act.stdout.splitlines() if ' ERROR:' in line])
    assert act.return_code == 2
    assert act.clean_stdout == act.clean_expected_stdout