115 lines
3.4 KiB
Plaintext
115 lines
3.4 KiB
Plaintext
# 2009 December 29
|
|
#
|
|
# 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 tests the effects of SQL variable references embedded in
|
|
# triggers. If the user attempts to create such a trigger, it is an
|
|
# error. However, if an existing trigger definition is read from
|
|
# the sqlite_master table, the variable reference always evaluates
|
|
# to NULL.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
ifcapable {!trigger} {
|
|
finish_test
|
|
return
|
|
}
|
|
set testprefix triggerE
|
|
|
|
do_execsql_test 1.0 {
|
|
CREATE TABLE t1(a, b);
|
|
CREATE TABLE t2(c, d);
|
|
CREATE TABLE t3(e, f);
|
|
}
|
|
|
|
# forcedelete test.db2
|
|
# do_execsql_test 1.1 {
|
|
# ATTACH 'test.db2' AS aux;
|
|
# CREATE TABLE aux.t4(x);
|
|
# INSERT INTO aux.t4 VALUES(5);
|
|
#
|
|
# CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN new.a IN (SELECT x FROM aux.t4)
|
|
# BEGIN
|
|
# SELECT 1;
|
|
# END;
|
|
# }
|
|
# do_execsql_test 1.2 { INSERT INTO t1 VALUES(1,1); }
|
|
# do_execsql_test 1.3 { INSERT INTO t1 VALUES(5,5); }
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Attempt to create various triggers that use bound variables.
|
|
#
|
|
set errmsg "trigger cannot use variables"
|
|
foreach {tn defn} {
|
|
1 { AFTER INSERT ON t1 WHEN new.a = ? BEGIN SELECT 1; END; }
|
|
2 { BEFORE DELETE ON t1 BEGIN SELECT ?; END; }
|
|
3 { BEFORE DELETE ON t1 BEGIN SELECT * FROM (SELECT * FROM (SELECT ?)); END; }
|
|
5 { BEFORE DELETE ON t1 BEGIN SELECT * FROM t2 GROUP BY ?; END; }
|
|
6 { BEFORE DELETE ON t1 BEGIN SELECT * FROM t2 LIMIT ?; END; }
|
|
7 { BEFORE DELETE ON t1 BEGIN SELECT * FROM t2 ORDER BY ?; END; }
|
|
8 { BEFORE UPDATE ON t1 BEGIN UPDATE t2 SET c = ?; END; }
|
|
9 { BEFORE UPDATE ON t1 BEGIN UPDATE t2 SET c = 1 WHERE d = ?; END; }
|
|
10 { AFTER INSERT ON t1 BEGIN SELECT * FROM pragma_stats(?); END; }
|
|
11 { BEFORE INSERT ON t1 BEGIN
|
|
INSERT INTO t1 SELECT max(b) OVER(ORDER BY $1) FROM t1; END }
|
|
} {
|
|
catchsql {drop trigger tr1}
|
|
do_catchsql_test 1.1.$tn "CREATE TRIGGER tr1 $defn" [list 1 $errmsg]
|
|
do_catchsql_test 1.2.$tn "CREATE TEMP TRIGGER tr1 $defn" [list 1 $errmsg]
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test that variable references within trigger definitions loaded from
|
|
# the sqlite_master table are automatically converted to NULL.
|
|
#
|
|
sqlite3_db_config db DEFENSIVE 0
|
|
do_execsql_test 2.1 {
|
|
PRAGMA writable_schema = 1;
|
|
INSERT INTO sqlite_master VALUES('trigger', 'tr1', 't1', 0,
|
|
'CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
|
|
INSERT INTO t2 VALUES(?1, ?2);
|
|
END'
|
|
);
|
|
|
|
INSERT INTO sqlite_master VALUES('trigger', 'tr2', 't3', 0,
|
|
'CREATE TRIGGER tr2 AFTER INSERT ON t3 WHEN ?1 IS NULL BEGIN
|
|
UPDATE t2 SET c=d WHERE c IS ?2;
|
|
END'
|
|
);
|
|
}
|
|
db close
|
|
sqlite3 db test.db
|
|
|
|
do_execsql_test 2.2.1 {
|
|
INSERT INTO t1 VALUES(1, 2);
|
|
SELECT * FROM t2;
|
|
} {{} {}}
|
|
do_test 2.2.2 {
|
|
set one 3
|
|
execsql {
|
|
DELETE FROM t2;
|
|
INSERT INTO t1 VALUES($one, ?1);
|
|
SELECT * FROM t2;
|
|
}
|
|
} {{} {}}
|
|
do_execsql_test 2.2.3 { SELECT * FROM t1 } {1 2 3 3}
|
|
|
|
do_execsql_test 2.3 {
|
|
DELETE FROM t2;
|
|
INSERT INTO t2 VALUES('x', 'y');
|
|
INSERT INTO t2 VALUES(NULL, 'z');
|
|
INSERT INTO t3 VALUES(1, 2);
|
|
SELECT * FROM t3;
|
|
SELECT * FROM t2;
|
|
} {1 2 x y z z}
|
|
|
|
finish_test
|