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70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
#coding:utf-8
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"""
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ID: issue-4710
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ISSUE: 4710
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TITLE: SELECT WITH LOCK may enter an infinite loop for a single record
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DESCRIPTION:
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JIRA: CORE-4388
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FBTEST: bugs.core_4388
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"""
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import pytest
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import subprocess
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import time
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from pathlib import Path
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from firebird.qa import *
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init_script = """
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create table test(id int primary key, x int);
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commit;
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insert into test values(1, 100);
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commit;
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"""
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db = db_factory(sql_dialect=3, init=init_script)
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act = python_act('db',
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substitutions=[('(-)?concurrent\\s+transaction\\s+number(\\s+is)?\\s+\\d+',
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'concurrent transaction'),
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('After\\s+line\\s+\\d+.*', '')])
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expected_stdout = """
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Statement failed, SQLSTATE = 40001
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deadlock
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-update conflicts with concurrent update
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-concurrent transaction number is 13
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"""
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script_file = temp_file('test-script.sql')
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script_out = temp_file('test-script.out')
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@pytest.mark.version('>=3.0')
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def test_1(act: Action, script_file: Path, script_out: Path):
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with act.db.connect() as att1:
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# Delete record but not yet commit - it's a time
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# to make another connection:
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att1.execute_immediate("delete from test where id = 1")
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script_file.write_text("""
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set list on;
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-- set echo on;
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commit;
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set transaction lock timeout 20;
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select x from test where id = 1 with lock;
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""")
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try:
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with open(script_out, mode='w') as output:
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p_test_sql = subprocess.Popen([act.vars['isql'], '-n', '-i', str(script_file),
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'-user', act.db.user,
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'-password', act.db.password, act.db.dsn],
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stdout=output, stderr=subprocess.STDOUT)
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#
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time.sleep(2)
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finally:
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att1.commit()
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p_test_sql.wait()
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# Check
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act.expected_stdout = expected_stdout
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act.stdout = script_out.read_text()
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assert act.clean_stdout == act.clean_expected_stdout
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