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111 lines
36 KiB
Python
111 lines
36 KiB
Python
#coding:utf-8
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"""
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ID: issue-3910
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ISSUE: 3910
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TITLE: Server crashes during prepare or throws incorrect parsing error if the remotely passed SQL query is empty
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DESCRIPTION:
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JIRA: CORE-3554
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FBTEST: bugs.core_3554
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"""
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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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test_script = """
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-- See issues in ticket:
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-- "application either passes the empty SQL text to prepare, or passes a "too long" SQL text (64KB or 128KB etc)
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-- so its length becomes zero as a result of conversion into USHORT (unsigned 16-bit integer) which represents
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-- the supported SQL text length."
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-- Test was made only for 3.0 because 2.5 allows to pass in ES much longer string than 32K.
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-- 30.07.2015: at least since build #31948 first ES (which passes literal of length = 32766 bytes) no more fails.
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-- Previous expected std_err:
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-- Statement failed, SQLSTATE = 42000
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-- Dynamic SQL Error
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-- -SQL error code = -104
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-- -String literal with 32766 bytes exceeds the maximum length of 32765 bytes
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-- has been removed.
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-- Also, std_err has been changed for 2nd ES (which passes empty literal). Was:
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-- Statement failed, SQLSTATE = 42000
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-- Execute statement error at isc_dsql_prepare :
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-- 335544608 : Unexpected end of command
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-- Statement :
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-- Data source : Firebird::localhost:C:\\FBTESTING\\QA\\FBT-REPO\\TMP\\E30.FDB
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set list on;
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set term ^;
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execute block returns(n int) as
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declare b blob;
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begin
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-- Try to pass statement with total char length (including delimiters, `select` and `from rdb$database`) = 32766 bytes.
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-- This should raise exception in 3.0:
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execute statement 'select ''1qwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwertyqwert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from rdb$database'
|
|
on external ('localhost:'||rdb$get_context('SYSTEM','DB_NAME')) as user 'sysdba' password 'masterkey' role 'R2'
|
|
into b;
|
|
|
|
n = octet_length(b);
|
|
suspend;
|
|
end
|
|
^
|
|
|
|
execute block returns(n int) as
|
|
begin
|
|
-- Try to pass empty statement. This should raise exception, but server must not crach:
|
|
execute statement ''
|
|
on external ('localhost:'||rdb$get_context('SYSTEM','DB_NAME')) as user 'sysdba' password 'masterkey' role 'R2'
|
|
;
|
|
end
|
|
^
|
|
set term ;^
|
|
commit;
|
|
|
|
-- ||||||||||||||||||||||||||||
|
|
-- ###################################||| FB 4.0+, SS and SC |||##############################
|
|
-- ||||||||||||||||||||||||||||
|
|
-- If we check SS or SC and ExtConnPoolLifeTime > 0 (config parameter FB 4.0+) then current
|
|
-- DB (bugs.core_NNNN.fdb) will be 'captured' by firebird.exe process and fbt_run utility
|
|
-- will not able to drop this database at the final point of test.
|
|
-- Moreover, DB file will be hold until all activity in firebird.exe completed and AFTER this
|
|
-- we have to wait for <ExtConnPoolLifeTime> seconds after it (discussion and small test see
|
|
-- in the letter to hvlad and dimitr 13.10.2019 11:10).
|
|
-- This means that one need to kill all connections to prevent from exception on cleanup phase:
|
|
-- SQLCODE: -901 / lock time-out on wait transaction / object <this_test_DB> is in use
|
|
-- #############################################################################################
|
|
delete from mon$attachments where mon$attachment_id != current_connection;
|
|
commit;
|
|
|
|
"""
|
|
|
|
act = isql_act('db', test_script,
|
|
substitutions=[('Data source : Firebird::localhost:.*', 'Data source : Firebird::localhost:'),
|
|
('.*Unexpected end of command.*', 'Unexpected end of command'),
|
|
('-At block line: [\\d]+, col: [\\d]+', '-At block line')])
|
|
|
|
expected_stdout = """
|
|
N 32739
|
|
"""
|
|
|
|
expected_stderr = """
|
|
Statement failed, SQLSTATE = 42000
|
|
Execute statement error at isc_dsql_prepare :
|
|
335544569 : Dynamic SQL Error
|
|
335544436 : SQL error code = -104
|
|
335544851 : Unexpected end of command - line 1, column 1
|
|
Statement :
|
|
Data source : Firebird::localhost:C:\\MIX\\firebird\\QA\\fbt-repo\\tmp\\E30.FDB
|
|
-At block line: 4, col: 7
|
|
"""
|
|
|
|
@pytest.mark.es_eds
|
|
@pytest.mark.version('>=3.0')
|
|
def test_1(act: Action):
|
|
act.expected_stdout = expected_stdout
|
|
act.expected_stderr = expected_stderr
|
|
act.execute()
|
|
assert (act.clean_stderr == act.clean_expected_stderr and
|
|
act.clean_stdout == act.clean_expected_stdout)
|
|
|