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+# 2004 December 07
+#
+# 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 implements regression tests for SQLite library.
+#
+# This file implements tests to make sure expression of an INSERT
+# and UPDATE statement are only evaluated once. See ticket #980.
+# If an expression uses a function that has side-effects or which
+# is not deterministic (ex: random()) then we want to make sure
+# that the same evaluation occurs for the actual INSERT/UPDATE and
+# for the NEW.* fields of any triggers that fire.
+#
+# $Id: trigger6.test,v 1.2 2005/05/05 11:04:50 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+ finish_test
+ return
+}
+
+do_test trigger6-1.1 {
+ execsql {
+ CREATE TABLE t1(x, y);
+ CREATE TABLE log(a, b, c);
+ CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+ INSERT INTO log VALUES(1, new.x, new.y);
+ END;
+ CREATE TRIGGER r2 BEFORE UPDATE ON t1 BEGIN
+ INSERT INTO log VALUES(2, new.x, new.y);
+ END;
+ }
+ set ::trigger6_cnt 0
+ proc trigger6_counter {args} {
+ incr ::trigger6_cnt
+ return $::trigger6_cnt
+ }
+ db function counter trigger6_counter
+ execsql {
+ INSERT INTO t1 VALUES(1,counter());
+ SELECT * FROM t1;
+ }
+} {1 1}
+do_test trigger6-1.2 {
+ execsql {
+ SELECT * FROM log;
+ }
+} {1 1 1}
+do_test trigger6-1.3 {
+ execsql {
+ DELETE FROM t1;
+ DELETE FROM log;
+ INSERT INTO t1 VALUES(2,counter(2,3)+4);
+ SELECT * FROM t1;
+ }
+} {2 6}
+do_test trigger6-1.4 {
+ execsql {
+ SELECT * FROM log;
+ }
+} {1 2 6}
+do_test trigger6-1.5 {
+ execsql {
+ DELETE FROM log;
+ UPDATE t1 SET y=counter(5);
+ SELECT * FROM t1;
+ }
+} {2 3}
+do_test trigger6-1.6 {
+ execsql {
+ SELECT * FROM log;
+ }
+} {2 2 3}
+
+finish_test