sqlite/test/hook.test

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# 2004 Jan 14
#
# 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 TCL interface to the
# SQLite library.
#
# The focus of the tests in this file is the following interface:
#
# sqlite_commit_hook (tests hook-1..hook-3 inclusive)
# sqlite_update_hook (tests hook-4-*)
# sqlite_rollback_hook (tests hook-5.*)
#
# $Id: hook.test,v 1.15 2009/04/07 14:14:23 danielk1977 Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_test hook-1.2 {
db commit_hook
} {}
do_test hook-3.1 {
set commit_cnt 0
proc commit_hook {} {
incr ::commit_cnt
return 0
}
db commit_hook ::commit_hook
db commit_hook
} {::commit_hook}
do_test hook-3.2 {
set commit_cnt
} {0}
do_test hook-3.3 {
execsql {
CREATE TABLE t2(a,b);
}
set commit_cnt
} {1}
do_test hook-3.4 {
execsql {
INSERT INTO t2 VALUES(1,2);
INSERT INTO t2 SELECT a+1, b+1 FROM t2;
INSERT INTO t2 SELECT a+2, b+2 FROM t2;
}
set commit_cnt
} {4}
do_test hook-3.5 {
set commit_cnt {}
proc commit_hook {} {
set ::commit_cnt [execsql {SELECT * FROM t2}]
return 0
}
execsql {
INSERT INTO t2 VALUES(5,6);
}
set commit_cnt
} {1 2 2 3 3 4 4 5 5 6}
do_test hook-3.6 {
set commit_cnt {}
proc commit_hook {} {
set ::commit_cnt [execsql {SELECT * FROM t2}]
return 1
}
catchsql {
INSERT INTO t2 VALUES(6,7);
}
} {1 {constraint failed}}
do_test hook-3.7 {
set ::commit_cnt
} {1 2 2 3 3 4 4 5 5 6 6 7}
do_test hook-3.8 {
execsql {SELECT * FROM t2}
} {1 2 2 3 3 4 4 5 5 6}
# Test turnning off the commit hook
#
do_test hook-3.9 {
db commit_hook {}
set ::commit_cnt {}
execsql {
INSERT INTO t2 VALUES(7,8);
}
set ::commit_cnt
} {}
# Ticket #3564.
#
do_test hook-3.10 {
forcedelete test2.db test2.db-journal
sqlite3 db2 test2.db
proc commit_hook {} {
set y [db2 one {SELECT y FROM t3 WHERE y>10}]
return [expr {$y>10}]
}
db2 eval {CREATE TABLE t3(x,y)}
db2 commit_hook commit_hook
catchsql {INSERT INTO t3 VALUES(1,2)} db2
catchsql {INSERT INTO t3 VALUES(11,12)} db2
catchsql {INSERT INTO t3 VALUES(3,4)} db2
db2 eval {
SELECT * FROM t3 ORDER BY x;
}
} {1 2 3 4}
db2 close
#----------------------------------------------------------------------------
# Tests for the update-hook.
#
# 4.1.* - Very simple tests. Test that the update hook is invoked correctly
# for INSERT, DELETE and UPDATE statements, including DELETE
# statements with no WHERE clause.
# 4.2.* - Check that the update-hook is invoked for rows modified by trigger
# bodies. Also that the database name is correctly reported when
# an attached database is modified.
# 4.3.* - Do some sorting, grouping, compound queries, population and
# depopulation of indices, to make sure the update-hook is not
# invoked incorrectly.
#
# Simple tests
do_test hook-4.1.1 {
catchsql {
DROP TABLE t1;
}
execsql {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
INSERT INTO t1 VALUES(1, 'one');
INSERT INTO t1 VALUES(2, 'two');
INSERT INTO t1 VALUES(3, 'three');
}
db update_hook [list lappend ::update_hook]
} {}
do_test hook-4.1.2 {
execsql {
INSERT INTO t1 VALUES(4, 'four');
DELETE FROM t1 WHERE b = 'two';
UPDATE t1 SET b = '' WHERE a = 1 OR a = 3;
DELETE FROM t1 WHERE 1; -- Avoid the truncate optimization (for now)
}
set ::update_hook
} [list \
INSERT main t1 4 \
DELETE main t1 2 \
UPDATE main t1 1 \
UPDATE main t1 3 \
DELETE main t1 1 \
DELETE main t1 3 \
DELETE main t1 4 \
]
ifcapable trigger {
# Update hook is not invoked for changes to sqlite_master
#
do_test hook-4.1.3 {
set ::update_hook {}
execsql {
CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN SELECT RAISE(IGNORE); END;
}
set ::update_hook
} {}
do_test hook-4.1.4 {
set ::update_hook {}
execsql {
DROP TRIGGER r1;
}
set ::update_hook
} {}
set ::update_hook {}
do_test hook-4.2.1 {
catchsql {
DROP TABLE t2;
}
execsql {
CREATE TABLE t2(c INTEGER PRIMARY KEY, d);
CREATE TRIGGER t1_trigger AFTER INSERT ON t1 BEGIN
INSERT INTO t2 VALUES(new.a, new.b);
UPDATE t2 SET d = d || ' via trigger' WHERE new.a = c;
DELETE FROM t2 WHERE new.a = c;
END;
}
} {}
do_test hook-4.2.2 {
execsql {
INSERT INTO t1 VALUES(1, 'one');
INSERT INTO t1 VALUES(2, 'two');
}
set ::update_hook
} [list \
INSERT main t1 1 \
INSERT main t2 1 \
UPDATE main t2 1 \
DELETE main t2 1 \
INSERT main t1 2 \
INSERT main t2 2 \
UPDATE main t2 2 \
DELETE main t2 2 \
]
} else {
execsql {
INSERT INTO t1 VALUES(1, 'one');
INSERT INTO t1 VALUES(2, 'two');
}
}
# Update-hook + ATTACH
set ::update_hook {}
ifcapable attach {
do_test hook-4.2.3 {
forcedelete test2.db
execsql {
ATTACH 'test2.db' AS aux;
CREATE TABLE aux.t3(a INTEGER PRIMARY KEY, b);
INSERT INTO aux.t3 SELECT * FROM t1;
UPDATE t3 SET b = 'two or so' WHERE a = 2;
DELETE FROM t3 WHERE 1; -- Avoid the truncate optimization (for now)
}
set ::update_hook
} [list \
INSERT aux t3 1 \
INSERT aux t3 2 \
UPDATE aux t3 2 \
DELETE aux t3 1 \
DELETE aux t3 2 \
]
}
ifcapable trigger {
execsql {
DROP TRIGGER t1_trigger;
}
}
# Test that other vdbe operations involving btree structures do not
# incorrectly invoke the update-hook.
set ::update_hook {}
do_test hook-4.3.1 {
execsql {
CREATE INDEX t1_i ON t1(b);
INSERT INTO t1 VALUES(3, 'three');
UPDATE t1 SET b = '';
DELETE FROM t1 WHERE a > 1;
}
set ::update_hook
} [list \
INSERT main t1 3 \
UPDATE main t1 1 \
UPDATE main t1 2 \
UPDATE main t1 3 \
DELETE main t1 2 \
DELETE main t1 3 \
]
set ::update_hook {}
ifcapable compound&&attach {
do_test hook-4.3.2 {
execsql {
SELECT * FROM t1 UNION SELECT * FROM t3;
SELECT * FROM t1 UNION ALL SELECT * FROM t3;
SELECT * FROM t1 INTERSECT SELECT * FROM t3;
SELECT * FROM t1 EXCEPT SELECT * FROM t3;
SELECT * FROM t1 ORDER BY b;
SELECT * FROM t1 GROUP BY b;
}
set ::update_hook
} [list]
}
do_test hook-4.4 {
execsql {
CREATE TABLE t4(a UNIQUE, b);
INSERT INTO t4 VALUES(1, 'a');
INSERT INTO t4 VALUES(2, 'b');
}
set ::update_hook [list]
execsql {
REPLACE INTO t4 VALUES(1, 'c');
}
set ::update_hook
} [list INSERT main t4 3 ]
do_execsql_test hook-4.4.1 {
SELECT * FROM t4 ORDER BY a;
} {1 c 2 b}
do_test hook-4.4.2 {
set ::update_hook [list]
execsql {
PRAGMA recursive_triggers = on;
REPLACE INTO t4 VALUES(1, 'd');
}
set ::update_hook
} [list INSERT main t4 4 ]
do_execsql_test hook-4.4.3 {
SELECT * FROM t4 ORDER BY a;
} {1 d 2 b}
db update_hook {}
#
#----------------------------------------------------------------------------
#----------------------------------------------------------------------------
# Test the rollback-hook. The rollback-hook is a bit more complicated than
# either the commit or update hooks because a rollback can happen
# explicitly (an sql ROLLBACK statement) or implicitly (a constraint or
# error condition).
#
# hook-5.1.* - Test explicit rollbacks.
# hook-5.2.* - Test implicit rollbacks caused by constraint failure.
#
# hook-5.3.* - Test implicit rollbacks caused by IO errors.
# hook-5.4.* - Test implicit rollbacks caused by malloc() failure.
# hook-5.5.* - Test hot-journal rollbacks. Or should the rollback hook
# not be called for these?
#
do_test hook-5.0 {
# Configure the rollback hook to increment global variable
# $::rollback_hook each time it is invoked.
set ::rollback_hook 0
db rollback_hook [list incr ::rollback_hook]
} {}
# Test explicit rollbacks. Not much can really go wrong here.
#
do_test hook-5.1.1 {
set ::rollback_hook 0
execsql {
BEGIN;
ROLLBACK;
}
set ::rollback_hook
} {1}
# Test implicit rollbacks caused by constraints.
#
do_test hook-5.2.1 {
set ::rollback_hook 0
catchsql {
DROP TABLE t1;
CREATE TABLE t1(a PRIMARY KEY, b);
INSERT INTO t1 VALUES('one', 'I');
INSERT INTO t1 VALUES('one', 'I');
}
set ::rollback_hook
} {1}
do_test hook-5.2.2 {
# Check that the INSERT transaction above really was rolled back.
execsql {
SELECT count(*) FROM t1;
}
} {1}
#
# End rollback-hook testing.
#----------------------------------------------------------------------------
#----------------------------------------------------------------------------
# Test that if a commit-hook returns non-zero (causing a rollback), the
# rollback-hook is invoked.
#
proc commit_hook {} {
lappend ::hooks COMMIT
return 1
}
proc rollback_hook {} {
lappend ::hooks ROLLBACK
}
do_test hook-6.1 {
set ::hooks [list]
db commit_hook commit_hook
db rollback_hook rollback_hook
catchsql {
BEGIN;
INSERT INTO t1 VALUES('two', 'II');
COMMIT;
}
execsql { SELECT * FROM t1 }
} {one I}
do_test hook-6.2 {
set ::hooks
} {COMMIT ROLLBACK}
unset ::hooks
finish_test