# 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 1.4 2004/06/15 11:40:10 danielk1977 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 order by name }]\n foreach tbl [$db eval { SELECT name FROM sqlite_master WHERE type='table' order by name }] { append txt [$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 { if {$n==41} { # set sqlite_os_trace 1 breakpoint } set r [catch {db eval { VACUUM; }} msg] # puts "error_pending=$::sqlite_io_error_pending" # if {$r} {puts $msg} set sqlite_os_trace 0 set ::go [expr {$::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