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Diffstat (limited to 'test/tkt2767.test')
-rw-r--r-- | test/tkt2767.test | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/test/tkt2767.test b/test/tkt2767.test new file mode 100644 index 0000000..29b5201 --- /dev/null +++ b/test/tkt2767.test @@ -0,0 +1,90 @@ +# 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 |