#pragma ident "%Z%%M% %I% %E% SMI"

# 2001 October 12

#

# 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. The

# focus of this file is testing for correct handling of I/O errors

# such as writes failing because the disk is full.

#

# The tests in this file use special facilities that are only

# available in the SQLite test fixture.

#

# $Id: ioerr.test,v 1.3 2003/04/25 15:37:59 drh Exp $

set testdir [file dirname $argv0]

source $testdir/tester.tcl

set ::go 1

for {set n 1} {$go} {incr n} {

do_test ioerr-1.$n.1 {

set ::sqlite_io_error_pending 0

db close

catch {file delete -force test.db}

catch {file delete -force test.db-journal}

sqlite db test.db

execsql {SELECT * FROM sqlite_master}

} {}

do_test ioerr-1.$n.2 [subst {

set ::sqlite_io_error_pending $n

}] $n

do_test ioerr-1.$n.3 {

set r [catch {db eval {

CREATE TABLE t1(a,b,c);

SELECT * FROM sqlite_master;

BEGIN TRANSACTION;

INSERT INTO t1 VALUES(1,2,3);

INSERT INTO t1 VALUES(4,5,6);

ROLLBACK;

SELECT * FROM t1;

BEGIN TRANSACTION;

INSERT INTO t1 VALUES(1,2,3);

INSERT INTO t1 VALUES(4,5,6);

COMMIT;

SELECT * FROM t1;

DELETE FROM t1 WHERE a<100;

}} msg]

# if {$r} {puts $msg}

set ::go [expr {$::sqlite_io_error_pending<=0}]

expr {$::sqlite_io_error_pending>0 || $r!=0}

} {1}

}

set ::sqlite_io_error_pending 0

proc cksum {{db db}} {

set txt [$db eval {SELECT name, type, sql FROM sqlite_master}]\n

foreach tbl [$db eval {SELECT name FROM sqlite_master WHERE type='table'}] {

append txt [$db eval "SELECT * FROM $tbl"]\n

}

foreach prag {default_synchronous default_cache_size} {

append txt $prag-[$db eval "PRAGMA $prag"]\n

}

set cksum [string length $txt]-[md5 $txt]

# puts $cksum-[file size test.db]

return $cksum

}

set ::go 1

for {set n 1} {$go} {incr n} {

do_test ioerr-2.$n.1 {

set ::sqlite_io_error_pending 0

db close

catch {file delete -force test.db}

catch {file delete -force test.db-journal}

sqlite db test.db

execsql {

BEGIN;

CREATE TABLE t1(a, b, c);

INSERT INTO t1 VALUES(1, randstr(5,50), randstr(5,50));

INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1;

INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;

INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;

INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;

INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;

INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;

INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;

CREATE TABLE t2 AS SELECT * FROM t1;

CREATE TABLE t3 AS SELECT * FROM t1;

COMMIT;

DROP TABLE t2;

}

set ::cksum [cksum]

execsql {

SELECT name FROM sqlite_master WHERE type='table'

}

} {t1 t3}

do_test ioerr-2.$n.2 [subst {

set ::sqlite_io_error_pending $n

}] $n

do_test ioerr-2.$n.3 {

set r [catch {db eval {

VACUUM;

}} msg]

# puts "error_pending=$::sqlite_io_error_pending"

# if {$r} {puts $msg}

set ::go [expr {$::sqlite_io_error_pending<=0}]

expr {$::sqlite_io_error_pending>0 || $r!=0}

set ::sqlite_io_error_pending 0

db close

sqlite db test.db

cksum

} $cksum

}

set ::sqlite_io_error_pending 0

finish_test