| # 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 $ |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| |
| ifcapable !trigger { finish_test ; return } |
| |
| 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; |
| |
| -- 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; |
| |
| -- Verify the table content |
| SELECT count(*), sum(x) FROM t1; |
| } |
| } {32 528} |
| |
| # 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} |
| |
| # 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} |
| |
| # 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} |
| |
| |
| |
| finish_test |