# 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