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97 lines
2.8 KiB
Python
97 lines
2.8 KiB
Python
#coding:utf-8
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"""
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ID: issue-6057
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ISSUE: 6057
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TITLE: Wrong behavour FOR <select_stmt> [AS CURSOR cursorname] with next update and delete
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DESCRIPTION:
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Despite that this ticket was closed with solution "Won't fix" i see that it is useful for additional
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checking of cursor stability feature (new in 3.0).
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See also:
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1) test for #3728 (CORE-3362)
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2) comment in this ticket (CORE-5794) by hvlad:
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"Since Firebird3 <..> cursor doesn't see the changes made by "inner" statements."
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JIRA: CORE-5794
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FBTEST: bugs.core_5794
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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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recreate table test_table (
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id integer,
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val integer
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);
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commit;
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insert into test_table (id, val) values (1, 10);
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commit;
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recreate exception test_exception 'test';
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set term ^ ;
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create or alter trigger test_table_bd for test_table active before delete position 0 as
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begin
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rdb$set_context('USER_SESSION','TRIGGER_OLD_ID', coalesce(old.id,'null') );
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rdb$set_context('USER_SESSION','TRIGGER_OLD_VAL', coalesce(old.val,'null') );
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if (old.val >0 ) then
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exception test_exception 'it is forbidden to delete row with val>0 (id = '||coalesce(old.id, 'null')||', val='||coalesce(old.val,'null')||')';
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end
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^
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execute block as
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declare curVal integer;
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declare curID integer;
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begin
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for select id, val
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from test_table
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where val>0
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into curid, curval
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as cursor tmpcursor
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do begin
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update test_table
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set val=0
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where current of tmpcursor;
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-- NO error in 2.5:
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delete from test_table
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where current of tmpcursor;
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end
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end
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^
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set term ;^
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set list on;
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select mon$variable_name as ctx_var, mon$variable_value as ctx_value from mon$context_variables;
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"""
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act = isql_act('db', test_script, substitutions=[('line:\\s[0-9]+,', 'line: x'),
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('col:\\s[0-9]+', 'col: y')])
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expected_stdout = """
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CTX_VAR TRIGGER_OLD_ID
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CTX_VALUE 1
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CTX_VAR TRIGGER_OLD_VAL
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CTX_VALUE 10
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"""
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expected_stderr = """
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Statement failed, SQLSTATE = HY000
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exception 1
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-TEST_EXCEPTION
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-it is forbidden to delete row with val>0 (id = 1, val=10)
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-At trigger 'TEST_TABLE_BD' line: 6, col: 9
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At block line: 16, col: 9
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"""
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@pytest.mark.version('>=3.0')
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def test_1(act: Action):
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act.expected_stdout = expected_stdout
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act.expected_stderr = expected_stderr
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act.execute()
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assert (act.clean_stderr == act.clean_expected_stderr and
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act.clean_stdout == act.clean_expected_stdout)
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