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firebird-qa/tests/functional/trigger/database/test_disconnect_01.py
2024-04-24 17:34:45 +03:00

99 lines
3.5 KiB
Python

#coding:utf-8
"""
ID: trigger.database.disconnect
TITLE: Trigger on database disconnect: check that exception that raised when trigger fires is written to firebird.log
DESCRIPTION:
Test covers https://github.com/FirebirdSQL/firebird/issues/4282
Discussed with Alex, 16.12.2020 functionality that was not specified in the documentation:
exception that raises in a trigger on DISCONNECT reflects in the firebird.log.
Test creates trigger on disconnect and put in its body statement which always will fail: 1/0.
Then we get content of firebird.log before disconnect and after.
Finally we compare these logs and search in the difference lines about error message.
FBTEST: functional.trigger.database.disconnect_01
NOTES:
[26.05.2022] pzotov
Re-implemented for work in firebird-qa suite.
ACHTUNG: firebird.log may contain NON-ASCII characters if localized Windows is used!
Because of this, we have to add 'encoding=locale.getpreferredencoding()' to act.connect-server() call.
Checked on: 4.0.1.2692, 5.0.0.497
"""
import pytest
from firebird.qa import *
import time
from difflib import unified_diff
import re
import locale
tmp_worker = user_factory('db', name='tmp_worker', password='123')
db = db_factory()
act = python_act('db', substitutions=[('[ \t]+', ' '), ('line: \\d+, col: \\d+', '')])
expected_stdout_test_sql = """
WHO_AM_I TMP_WORKER
"""
expected_stdout_log_diff = """
+ Error at disconnect:
+ arithmetic exception, numeric overflow, or string truncation
+ Integer divide by zero. The code attempted to divide an integer value by an integer divisor of zero.
+ At trigger 'TRG_DISCONNECT'
"""
@pytest.mark.version('>=4.0')
def test_1(act: Action, tmp_worker: User, capsys):
init_sql = f"""
set term ^;
create trigger trg_disconnect on disconnect as
declare n int;
begin
if ( current_user = '{act.db.user}' ) then
exit;
n = 1/0;
end
^
set term ;^
commit;
"""
act.isql(switches=['-q'], input = init_sql)
with act.connect_server(encoding=locale.getpreferredencoding()) as srv:
srv.info.get_log()
fb_log_init = srv.readlines()
act.expected_stdout = expected_stdout_test_sql
check_sql="""
set list on;
select current_user who_am_i from rdb$database;
"""
act.isql(switches=['-user', tmp_worker.name, '-password', tmp_worker.password, act.db.dsn], connect_db=False, credentials=False, input = check_sql, combine_output=True)
assert act.clean_stdout == act.clean_expected_stdout
act.reset()
time.sleep(1)
with act.connect_server(encoding=locale.getpreferredencoding()) as srv:
srv.info.get_log()
fb_log_curr = srv.readlines()
diff_patterns = [
"Error at disconnect:",
"arithmetic exception, numeric overflow, or string truncation",
"Integer divide by zero. The code attempted to divide an integer value by an integer divisor of zero.",
"At trigger 'TRG_DISCONNECT' line: \\d+, col: \\d+",
]
diff_patterns = [re.compile(s) for s in diff_patterns]
for line in unified_diff(fb_log_init, fb_log_curr):
if line.startswith('+'):
if act.match_any(line, diff_patterns):
print(line.strip())
act.expected_stdout = expected_stdout_log_diff
act.stdout = capsys.readouterr().out
assert act.clean_stdout == act.clean_expected_stdout