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93 lines
3.9 KiB
Python
93 lines
3.9 KiB
Python
#coding:utf-8
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"""
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ID: issue-4642
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ISSUE: 4642
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TITLE: Engine crashes when trace config contains line "connection_id=NN" and we attempt to connect to non-existent database/alias
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DESCRIPTION:
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Test stores content of firebird.log before any actions, prepares config for trace (with intentional assigning connection_id to
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some positive value and time_threshold = 0) and launches ISQL with requirement to make connection to some non-existing alias.
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Output of ISQL must contan line 'SQLSTATE = 08001' and name of selected alias. It must *not* contain phrase about error reading/writing
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data from/to connection.
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Trace content must remain EMPTY, i.e. no any STDOUT or STDERR must be in it.
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Finally, we get content of firebird.log and compare it with initially stored one.
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Difference between them must not have any messages related to possible crash (see 'problematic_patterns').
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JIRA: CORE-4319
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FBTEST: bugs.core_4319
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NOTES:
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[15.1.2022] pcisar
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This test fails on localized Windows due to encoding error and other
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expected output differences, so we skip it for now.
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[17.09.2022] pzotov
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One need to specify 'io_enc=locale.getpreferredencoding()' when invoke ISQL
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if we want this message to appear at console in readable view:
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act.isql(switches = ..., input = ..., charset = ..., io_enc=locale.getpreferredencoding())
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NOTE: specifying 'encoding_errors = ignore' in the DEFAULT section of firebird-driver.conf
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does not prevent from UnicodeDecode error in this case.
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Checked on Linux and Windows (localized, cp1251): 3.0.8.33535, 4.0.1.2692, 5.0.0.730
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"""
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import locale
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import re
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from difflib import unified_diff
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import pytest
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from firebird.qa import *
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db = db_factory()
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act = python_act('db')
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trace_conf = """
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database
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{
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enabled = true
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log_connections = true
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log_errors = true
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time_threshold = 0
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connection_id = 1234
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}
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""".split('\n')
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NO_SUCH_ALIAS = 'n0_$uch_f1le'
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@pytest.mark.version('>=3.0')
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def test_1(act: Action, capsys):
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log_before = act.get_firebird_log()
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sql_txt = f"""
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connect 'localhost:{NO_SUCH_ALIAS}' user {act.db.user} password '{act.db.password}';
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set list on;
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select mon$database_name from mon$database;
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"""
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with act.trace(config = trace_conf, encoding = locale.getpreferredencoding(), encoding_errors='utf8'):
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act.isql(switches = ['-q'], input = sql_txt, connect_db=False, credentials = False, combine_output = True, io_enc = locale.getpreferredencoding())
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possible_crash_pattern = re.compile(r'error\s+(reading|writing)\s+data\s+(from|to)(\s+the)?\s+connection', re.IGNORECASE)
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assert 'SQLSTATE = 08001' in act.stdout and NO_SUCH_ALIAS in act.stdout and not possible_crash_pattern.search(act.stdout)
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act.reset()
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# 04.03.2023. Trace in recent FB 4.x and 5.x contains FAILED ATTACH_DATABASE when we attempt to make connection to non-existnng alias.
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# Because of that, requirement about empty trace must be removed from here:
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# >>> DISABLED 04.03.2023 >>> assert len(act.trace_log) == 0
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# Get Firebird log after test
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log_after = act.get_firebird_log()
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problematic_patterns = [re.compile( r'access\s+violation',re.IGNORECASE),
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re.compile( r'terminate\S+ abnormally',re.IGNORECASE),
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re.compile( r'error\s+(reading|writing)\s+data',re.IGNORECASE)
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]
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for line in unified_diff(log_before, log_after):
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# ::: NB :::
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# filter(None, [p.search(line) for p in problematic_patterns]) will be None only in Python 2.7.x!
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# In Python 3.x this will retrun "<filter object at 0xNNNNN>" ==> we must NOT use this statement!
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if line.startswith('+') and act.match_any(line, problematic_patterns):
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print(f'Problematic message in firebird.log: {line.upper()}\n')
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assert '' == capsys.readouterr().out
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