sl@0: # 2004 December 07
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: # This file implements regression tests for SQLite library.
sl@0: #
sl@0: # This file implements tests to make sure expression of an INSERT
sl@0: # and UPDATE statement are only evaluated once.  See ticket #980.
sl@0: # If an expression uses a function that has side-effects or which
sl@0: # is not deterministic (ex: random()) then we want to make sure
sl@0: # that the same evaluation occurs for the actual INSERT/UPDATE and
sl@0: # for the NEW.* fields of any triggers that fire.
sl@0: #
sl@0: # $Id: trigger6.test,v 1.2 2005/05/05 11:04:50 drh Exp $
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: ifcapable {!trigger} {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: do_test trigger6-1.1 {
sl@0:   execsql {
sl@0:     CREATE TABLE t1(x, y);
sl@0:     CREATE TABLE log(a, b, c);
sl@0:     CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
sl@0:       INSERT INTO log VALUES(1, new.x, new.y);
sl@0:     END;
sl@0:     CREATE TRIGGER r2 BEFORE UPDATE ON t1 BEGIN
sl@0:       INSERT INTO log VALUES(2, new.x, new.y);
sl@0:     END;
sl@0:   }
sl@0:   set ::trigger6_cnt 0
sl@0:   proc trigger6_counter {args} {
sl@0:     incr ::trigger6_cnt
sl@0:     return $::trigger6_cnt
sl@0:   }
sl@0:   db function counter trigger6_counter
sl@0:   execsql {
sl@0:     INSERT INTO t1 VALUES(1,counter());
sl@0:     SELECT * FROM t1;
sl@0:   }
sl@0: } {1 1}
sl@0: do_test trigger6-1.2 {
sl@0:   execsql {
sl@0:     SELECT * FROM log;
sl@0:   }
sl@0: } {1 1 1}
sl@0: do_test trigger6-1.3 {
sl@0:   execsql {
sl@0:     DELETE FROM t1;
sl@0:     DELETE FROM log;
sl@0:     INSERT INTO t1 VALUES(2,counter(2,3)+4);
sl@0:     SELECT * FROM t1;
sl@0:   }
sl@0: } {2 6}
sl@0: do_test trigger6-1.4 {
sl@0:   execsql {
sl@0:     SELECT * FROM log;
sl@0:   }
sl@0: } {1 2 6}
sl@0: do_test trigger6-1.5 {
sl@0:   execsql {
sl@0:     DELETE FROM log;
sl@0:     UPDATE t1 SET y=counter(5);
sl@0:     SELECT * FROM t1;
sl@0:   }
sl@0: } {2 3}
sl@0: do_test trigger6-1.6 {
sl@0:   execsql {
sl@0:     SELECT * FROM log;
sl@0:   }
sl@0: } {2 2 3}
sl@0: 
sl@0: finish_test