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97 lines
3.6 KiB
Python
97 lines
3.6 KiB
Python
#coding:utf-8
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"""
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ID: issue-6790
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ISSUE: https://github.com/FirebirdSQL/firebird/issues/6790
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TITLE: MON$ATTACHMENTS.MON$TIMESTAMP is incorrect when DefaultTimeZone is configured with time zone different from the server's default
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DESCRIPTION:
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Test creates custom DatabaseConfig object for writing in its session_time_zone value that will differ from server.
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Query to rdb$time_zones is performed for obtaining random record and assigns it to DefaultTimeZone column of DB config.
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Then we obtain values of current_timestamp and mon$attachments.mon$timestamp for current connection, and parse them in order to:
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* get timezone name for each of these values;
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* get timestamp WITHOUT timezone name.
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Result of parsing for these values must meet following conditions:
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1) both timestamps must belong to the same time zone (this was NOT so before fix);
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2) difference between timestamps must not be valuable, usually this must be no more than 1..2 seconds (see 'MAX_DIFF_MS')
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FBTEST: bugs.gh_6790
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NOTES:
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[18.08.2022] pzotov
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Confirmed problem on WI-V4.0.0.2436: either different time zones or too big time differences can be issued.
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Improvement ('add MON$SESSION_TIMEZONE to MON$ATTACHMENTS') commit info:
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06-may-2021 15:18
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https://github.com/FirebirdSQL/firebird/commit/c8750376bb78e5a588fb269a144bba4dea34ae47
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Checked on 5.0.0.623, 4.0.1.2692 - both on Windows and Linux.
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"""
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import datetime
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from datetime import timedelta
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import pytest
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from firebird.qa import *
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from firebird.driver import driver_config, connect
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MAX_DIFF_MS = 1500
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db = db_factory()
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act = python_act('db')
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@pytest.mark.version('>=4.0')
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def test_1(act: Action, capsys):
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with act.db.connect() as con:
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with con.cursor() as cur:
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cur.execute('select z.rdb$time_zone_name from rdb$time_zones z order by rand() rows 1')
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RANDOM_TZ = cur.fetchone()[0]
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db_cfg_name = f'tmp_gh_6790'
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db_cfg_object = driver_config.register_database(name = db_cfg_name)
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db_cfg_object.database.value = str(act.db.db_path)
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db_cfg_object.session_time_zone.value = RANDOM_TZ
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sql_chk = f"""
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select
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cast(t1 as varchar(255)) as ts1
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,cast(t2 as varchar(255)) as ts2
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from (
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select
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current_timestamp as t1
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,a.mon$timestamp as t2
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from mon$attachments a
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where a.mon$attachment_id = current_connection
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);
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"""
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tz_names_set = set()
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time_values = []
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with connect(db_cfg_name) as con:
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with con.cursor() as cur:
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for r in cur.execute(sql_chk):
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for i,col in enumerate(cur.description):
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# print((col[0]).ljust(63), r[i])
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tz_names_set.add( r[i].split()[-1] ) # '2022-08-18 19:59:48.6860 Pacific/Yap' ==> 'Pacific/Yap'
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time_values.append(datetime.datetime.strptime(r[i][:23], '%Y-%m-%d %H:%M:%S.%f') )
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expected_stdout = 'Timestamps difference acceptable.'
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time_diff_ms = (max(time_values) - min(time_values)).total_seconds() * 1000
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if time_diff_ms <= MAX_DIFF_MS and len(tz_names_set) ==1:
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print(expected_stdout)
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else:
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print(f'UNEXPECTED: detected either diff time zones or too significant difference between timestamps.')
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print('1. Check tz_names_set:')
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for p in tz_names_set:
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print(p)
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print(f'2. Check time_values (difference: {time_diff_ms} ms)')
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for p in time_values:
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print(p)
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act.expected_stdout = expected_stdout
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act.stdout = capsys.readouterr().out
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assert act.clean_stdout == act.clean_expected_stdout
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