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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 $
+#
+
+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