--- /dev/null
+# 2009 August 24
+#
+# 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.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+ finish_test
+ return
+}
+
+# Enable recursive triggers for this file.
+#
+execsql { PRAGMA disable_recursive_triggers = 0 }
+
+#sqlite3_db_config_lookaside db 0 0 0
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-1.*, are not aimed at any specific
+# property of the triggers sub-system. They were created to debug
+# specific problems while modifying SQLite to support recursive
+# triggers. They are left here in case they can help debug the
+# same problems again.
+#
+do_test triggerC-1.1 {
+ execsql {
+ CREATE TABLE t1(a, b, c);
+ CREATE TABLE log(t, a1, b1, c1, a2, b2, c2);
+ CREATE TRIGGER trig1 BEFORE INSERT ON t1 BEGIN
+ INSERT INTO log VALUES('before', NULL, NULL, NULL, new.a, new.b, new.c);
+ END;
+ CREATE TRIGGER trig2 AFTER INSERT ON t1 BEGIN
+ INSERT INTO log VALUES('after', NULL, NULL, NULL, new.a, new.b, new.c);
+ END;
+ CREATE TRIGGER trig3 BEFORE UPDATE ON t1 BEGIN
+ INSERT INTO log VALUES('before', old.a,old.b,old.c, new.a,new.b,new.c);
+ END;
+ CREATE TRIGGER trig4 AFTER UPDATE ON t1 BEGIN
+ INSERT INTO log VALUES('after', old.a,old.b,old.c, new.a,new.b,new.c);
+ END;
+
+ CREATE TRIGGER trig5 BEFORE DELETE ON t1 BEGIN
+ INSERT INTO log VALUES('before', old.a,old.b,old.c, NULL,NULL,NULL);
+ END;
+ CREATE TRIGGER trig6 AFTER DELETE ON t1 BEGIN
+ INSERT INTO log VALUES('after', old.a,old.b,old.c, NULL,NULL,NULL);
+ END;
+ }
+} {}
+do_test triggerC-1.2 {
+ execsql {
+ INSERT INTO t1 VALUES('A', 'B', 'C');
+ SELECT * FROM log;
+ }
+} {before {} {} {} A B C after {} {} {} A B C}
+do_test triggerC-1.3 {
+ execsql { SELECT * FROM t1 }
+} {A B C}
+do_test triggerC-1.4 {
+ execsql {
+ DELETE FROM log;
+ UPDATE t1 SET a = 'a';
+ SELECT * FROM log;
+ }
+} {before A B C a B C after A B C a B C}
+do_test triggerC-1.5 {
+ execsql { SELECT * FROM t1 }
+} {a B C}
+do_test triggerC-1.6 {
+ execsql {
+ DELETE FROM log;
+ DELETE FROM t1;
+ SELECT * FROM log;
+ }
+} {before a B C {} {} {} after a B C {} {} {}}
+do_test triggerC-1.7 {
+ execsql { SELECT * FROM t1 }
+} {}
+do_test triggerC-1.8 {
+ execsql {
+ CREATE TABLE t4(a, b);
+ CREATE TRIGGER t4t AFTER DELETE ON t4 BEGIN
+ SELECT RAISE(ABORT, 'delete is not supported');
+ END;
+ }
+} {}
+do_test triggerC-1.9 {
+ execsql { INSERT INTO t4 VALUES(1, 2) }
+ catchsql { DELETE FROM t4 }
+} {1 {delete is not supported}}
+do_test triggerC-1.10 {
+ execsql { SELECT * FROM t4 }
+} {1 2}
+do_test triggerC-1.11 {
+ execsql {
+ CREATE TABLE t5 (a primary key, b, c);
+ INSERT INTO t5 values (1, 2, 3);
+ CREATE TRIGGER au_tbl AFTER UPDATE ON t5 BEGIN
+ UPDATE OR IGNORE t5 SET a = new.a, c = 10;
+ END;
+ }
+} {}
+do_test triggerC-1.12 {
+ catchsql { UPDATE OR REPLACE t5 SET a = 4 WHERE a = 1 }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-1.13 {
+ execsql {
+ CREATE TABLE t6(a INTEGER PRIMARY KEY, b);
+ INSERT INTO t6 VALUES(1, 2);
+ create trigger r1 after update on t6 for each row begin
+ SELECT 1;
+ end;
+ UPDATE t6 SET a=a;
+ }
+} {}
+do_test triggerC-1.14 {
+ execsql {
+ DROP TABLE t1;
+ CREATE TABLE cnt(n);
+ INSERT INTO cnt VALUES(0);
+ CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c, d, e);
+ CREATE INDEX t1cd ON t1(c,d);
+ CREATE TRIGGER t1r1 AFTER UPDATE ON t1 BEGIN UPDATE cnt SET n=n+1; END;
+ INSERT INTO t1 VALUES(1,2,3,4,5);
+ INSERT INTO t1 VALUES(6,7,8,9,10);
+ INSERT INTO t1 VALUES(11,12,13,14,15);
+ }
+} {}
+do_test triggerC-1.15 {
+ catchsql { UPDATE OR ROLLBACK t1 SET a=100 }
+} {1 {PRIMARY KEY must be unique}}
+
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-2.*, tests that recursive trigger
+# programs (triggers that fire themselves) work. More specifically,
+# this block focuses on recursive INSERT triggers.
+#
+do_test triggerC-2.1.0 {
+ execsql {
+ CREATE TABLE t2(a PRIMARY KEY);
+ }
+} {}
+
+foreach {n tdefn rc} {
+ 1 {
+ CREATE TRIGGER t2_trig AFTER INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {10 9 8 7 6 5 4 3 2 1 0}}
+
+ 2 {
+ CREATE TRIGGER t2_trig AFTER INSERT ON t2 BEGIN
+ SELECT CASE WHEN new.a==2 THEN RAISE(IGNORE) ELSE NULL END;
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {10 9 8 7 6 5 4 3 2}}
+
+ 3 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {0 1 2 3 4 5 6 7 8 9 10}}
+
+ 4 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 BEGIN
+ SELECT CASE WHEN new.a==2 THEN RAISE(IGNORE) ELSE NULL END;
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {0 {3 4 5 6 7 8 9 10}}
+
+ 5 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 BEGIN
+ INSERT INTO t2 VALUES(new.a - 1);
+ END;
+ } {1 {too many levels of trigger recursion}}
+
+ 6 {
+ CREATE TRIGGER t2_trig AFTER INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT OR IGNORE INTO t2 VALUES(new.a);
+ END;
+ } {0 10}
+
+ 7 {
+ CREATE TRIGGER t2_trig BEFORE INSERT ON t2 WHEN (new.a>0) BEGIN
+ INSERT OR IGNORE INTO t2 VALUES(new.a);
+ END;
+ } {1 {too many levels of trigger recursion}}
+} {
+ do_test triggerC-2.1.$n {
+ catchsql { DROP TRIGGER t2_trig }
+ execsql { DELETE FROM t2 }
+ execsql $tdefn
+ catchsql {
+ INSERT INTO t2 VALUES(10);
+ SELECT * FROM t2;
+ }
+ } $rc
+}
+
+do_test triggerC-2.2 {
+ execsql {
+ CREATE TABLE t22(x);
+
+ CREATE TRIGGER t22a AFTER INSERT ON t22 BEGIN
+ INSERT INTO t22 SELECT x + (SELECT max(x) FROM t22) FROM t22;
+ END;
+ CREATE TRIGGER t22b BEFORE INSERT ON t22 BEGIN
+ SELECT CASE WHEN (SELECT count(*) FROM t22) >= 100
+ THEN RAISE(IGNORE)
+ ELSE NULL END;
+ END;
+
+ INSERT INTO t22 VALUES(1);
+ SELECT count(*) FROM t22;
+ }
+} {100}
+
+do_test triggerC-2.3 {
+ execsql {
+ CREATE TABLE t23(x PRIMARY KEY);
+
+ CREATE TRIGGER t23a AFTER INSERT ON t23 BEGIN
+ INSERT INTO t23 VALUES(new.x + 1);
+ END;
+
+ CREATE TRIGGER t23b BEFORE INSERT ON t23 BEGIN
+ SELECT CASE WHEN new.x>500
+ THEN RAISE(IGNORE)
+ ELSE NULL END;
+ END;
+
+ INSERT INTO t23 VALUES(1);
+ SELECT count(*) FROM t23;
+ }
+} {500}
+
+
+#-----------------------------------------------------------------------
+# This block of tests, triggerC-3.*, test that SQLite throws an exception
+# when it detects excessive recursion.
+#
+do_test triggerC-3.1.1 {
+ execsql {
+ CREATE TABLE t3(a, b);
+ CREATE TRIGGER t3i AFTER INSERT ON t3 BEGIN
+ DELETE FROM t3 WHERE rowid = new.rowid;
+ END;
+ CREATE TRIGGER t3d AFTER DELETE ON t3 BEGIN
+ INSERT INTO t3 VALUES(old.a, old.b);
+ END;
+ }
+} {}
+do_test triggerC-3.1.2 {
+ catchsql { INSERT INTO t3 VALUES(0,0) }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.1.3 {
+ execsql { SELECT * FROM t3 }
+} {}
+
+#-----------------------------------------------------------------------
+# This next block of tests, triggerC-4.*, checks that affinity
+# transformations and constraint processing is performed at the correct
+# times relative to BEFORE and AFTER triggers.
+#
+# For an INSERT statement, for each row to be inserted:
+#
+# 1. Apply affinities to non-rowid values to be inserted.
+# 2. Fire BEFORE triggers.
+# 3. Process constraints.
+# 4. Insert new record.
+# 5. Fire AFTER triggers.
+#
+# If the value of the rowid field is to be automatically assigned, it is
+# set to -1 in the new.* record. Even if it is explicitly set to NULL
+# by the INSERT statement.
+#
+# For an UPDATE statement, for each row to be deleted:
+#
+# 1. Apply affinities to non-rowid values to be inserted.
+# 2. Fire BEFORE triggers.
+# 3. Process constraints.
+# 4. Insert new record.
+# 5. Fire AFTER triggers.
+#
+# For a DELETE statement, for each row to be deleted:
+#
+# 1. Fire BEFORE triggers.
+# 2. Remove database record.
+# 3. Fire AFTER triggers.
+#
+# When a numeric value that as an exact integer representation is stored
+# in a column with REAL affinity, it is actually stored as an integer.
+# These tests check that the typeof() such values is always 'real',
+# not 'integer'.
+#
+# triggerC-4.1.*: Check that affinity transformations are made before
+# triggers are invoked.
+#
+do_test triggerC-4.1.1 {
+ catchsql { DROP TABLE log }
+ catchsql { DROP TABLE t4 }
+ execsql {
+ CREATE TABLE log(t);
+ CREATE TABLE t4(a TEXT,b INTEGER,c REAL);
+ CREATE TRIGGER t4bi BEFORE INSERT ON t4 BEGIN
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ CREATE TRIGGER t4ai AFTER INSERT ON t4 BEGIN
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ CREATE TRIGGER t4bd BEFORE DELETE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ END;
+ CREATE TRIGGER t4ad AFTER DELETE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ END;
+ CREATE TRIGGER t4bu BEFORE UPDATE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ CREATE TRIGGER t4au AFTER UPDATE ON t4 BEGIN
+ INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+ old.a || ' ' || typeof(old.a) || ' ' ||
+ old.b || ' ' || typeof(old.b) || ' ' ||
+ old.c || ' ' || typeof(old.c)
+ );
+ INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+ new.a || ' ' || typeof(new.a) || ' ' ||
+ new.b || ' ' || typeof(new.b) || ' ' ||
+ new.c || ' ' || typeof(new.c)
+ );
+ END;
+ }
+} {}
+foreach {n insert log} {
+
+ 2 {
+ INSERT INTO t4 VALUES('1', '1', '1');
+ DELETE FROM t4;
+ } {
+ -1 integer 1 text 1 integer 1.0 real
+ 1 integer 1 text 1 integer 1.0 real
+ 1 integer 1 text 1 integer 1.0 real
+ 1 integer 1 text 1 integer 1.0 real
+ }
+
+ 3 {
+ INSERT INTO t4(rowid,a,b,c) VALUES(45, 45, 45, 45);
+ DELETE FROM t4;
+ } {
+ 45 integer 45 text 45 integer 45.0 real
+ 45 integer 45 text 45 integer 45.0 real
+ 45 integer 45 text 45 integer 45.0 real
+ 45 integer 45 text 45 integer 45.0 real
+ }
+
+ 4 {
+ INSERT INTO t4(rowid,a,b,c) VALUES(-42.0, -42.0, -42.0, -42.0);
+ DELETE FROM t4;
+ } {
+ -42 integer -42.0 text -42 integer -42.0 real
+ -42 integer -42.0 text -42 integer -42.0 real
+ -42 integer -42.0 text -42 integer -42.0 real
+ -42 integer -42.0 text -42 integer -42.0 real
+ }
+
+ 5 {
+ INSERT INTO t4(rowid,a,b,c) VALUES(NULL, -42.4, -42.4, -42.4);
+ DELETE FROM t4;
+ } {
+ -1 integer -42.4 text -42.4 real -42.4 real
+ 1 integer -42.4 text -42.4 real -42.4 real
+ 1 integer -42.4 text -42.4 real -42.4 real
+ 1 integer -42.4 text -42.4 real -42.4 real
+ }
+
+ 6 {
+ INSERT INTO t4 VALUES(7, 7, 7);
+ UPDATE t4 SET a=8, b=8, c=8;
+ } {
+ -1 integer 7 text 7 integer 7.0 real
+ 1 integer 7 text 7 integer 7.0 real
+ 1 integer 7 text 7 integer 7.0 real
+ 1 integer 8 text 8 integer 8.0 real
+ 1 integer 7 text 7 integer 7.0 real
+ 1 integer 8 text 8 integer 8.0 real
+ }
+
+ 7 {
+ UPDATE t4 SET rowid=2;
+ } {
+ 1 integer 8 text 8 integer 8.0 real
+ 2 integer 8 text 8 integer 8.0 real
+ 1 integer 8 text 8 integer 8.0 real
+ 2 integer 8 text 8 integer 8.0 real
+ }
+
+ 8 {
+ UPDATE t4 SET a='9', b='9', c='9';
+ } {
+ 2 integer 8 text 8 integer 8.0 real
+ 2 integer 9 text 9 integer 9.0 real
+ 2 integer 8 text 8 integer 8.0 real
+ 2 integer 9 text 9 integer 9.0 real
+ }
+
+ 9 {
+ UPDATE t4 SET a='9.1', b='9.1', c='9.1';
+ } {
+ 2 integer 9 text 9 integer 9.0 real
+ 2 integer 9.1 text 9.1 real 9.1 real
+ 2 integer 9 text 9 integer 9.0 real
+ 2 integer 9.1 text 9.1 real 9.1 real
+ }
+} {
+ do_test triggerC-4.1.$n {
+ eval concat [execsql "
+ DELETE FROM log;
+ $insert ;
+ SELECT * FROM log;
+ "]
+ } [join $log " "]
+}
+
+finish_test
+
+
projects / thirdparty / sqlite.git / commitdiff
