/trunk/test/tkt2767.test |
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# 2007 Oct 3 |
# |
# The author disclaims copyright to this source code. In place of |
# a legal notice, here is a blessing: |
# |
# May you do good and not evil. |
# May you find forgiveness for yourself and forgive others. |
# May you share freely, never taking more than you give. |
# |
#*********************************************************************** |
# |
# This file is to test that ticket #2767 has been fixed. |
# Ticket #2767 is for a VDBE stack overflow on BEFORE |
# triggers that run RAISE(IGNORE). |
# |
# $Id: tkt2767.test,v 1.3 2009/04/07 14:14:23 danielk1977 Exp $ |
# |
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set testdir [file dirname $argv0] |
source $testdir/tester.tcl |
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ifcapable !trigger { finish_test ; return } |
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do_test tkt2767-1.1 { |
execsql { |
-- Construct a table with many rows of data |
CREATE TABLE t1(x); |
INSERT INTO t1 VALUES(1); |
INSERT INTO t1 VALUES(2); |
INSERT INTO t1 SELECT x+2 FROM t1; |
INSERT INTO t1 SELECT x+4 FROM t1; |
INSERT INTO t1 SELECT x+8 FROM t1; |
INSERT INTO t1 SELECT x+16 FROM t1; |
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-- BEFORE triggers that invoke raise(ignore). The effect of |
-- these triggers should be to make INSERTs, UPDATEs, and DELETEs |
-- into no-ops. |
CREATE TRIGGER r1 BEFORE UPDATE ON t1 BEGIN |
SELECT raise(ignore); |
END; |
CREATE TRIGGER r2 BEFORE DELETE ON t1 BEGIN |
SELECT raise(ignore); |
END; |
CREATE TRIGGER r3 BEFORE INSERT ON t1 BEGIN |
SELECT raise(ignore); |
END; |
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-- Verify the table content |
SELECT count(*), sum(x) FROM t1; |
} |
} {32 528} |
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# Try to delete all elements of the table. This will invoke the |
# DELETE trigger 32 times, which should overflow the VDBE stack if |
# the problem of #2767 is not fixed. If the problem is fixed, all |
# the deletes should be no-ops so the table should remain unchanged. |
# |
do_test tkt2767-1.2 { |
execsql { |
DELETE FROM t1 WHERE x>0; |
SELECT count(*), sum(x) FROM t1; |
} |
} {32 528} |
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# Try to update all elements of the table. This will invoke the |
# UPDATE trigger 32 times, which should overflow the VDBE stack if |
# the problem of #2767 is not fixed. If the problem is fixed, all |
# the updates should be no-ops so the table should remain unchanged. |
# |
do_test tkt2767-1.3 { |
execsql { |
UPDATE t1 SET x=x+1; |
SELECT count(*), sum(x) FROM t1; |
} |
} {32 528} |
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# Invoke the insert trigger. The insert trigger was working |
# even prior to the fix of #2767. But it seems good to go ahead |
# and verify that it works. |
# |
do_test tkt2767-1.4 { |
execsql { |
INSERT INTO t1 SELECT x+32 FROM t1; |
SELECT count(*), sum(x) FROM t1; |
} |
} {32 528} |
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finish_test |