1# 2001 October 12 2# 3# The author disclaims copyright to this source code. In place of 4# a legal notice, here is a blessing: 5# 6# May you do good and not evil. 7# May you find forgiveness for yourself and forgive others. 8# May you share freely, never taking more than you give. 9# 10#*********************************************************************** 11# This file implements regression tests for SQLite library. The 12# focus of this file is testing for correct handling of I/O errors 13# such as writes failing because the disk is full. 14# 15# The tests in this file use special facilities that are only 16# available in the SQLite test fixture. 17# 18# $Id: ioerr.test,v 1.3 2003/04/25 15:37:59 drh Exp $ 19 20set testdir [file dirname $argv0] 21source $testdir/tester.tcl 22 23set ::go 1 24for {set n 1} {$go} {incr n} { 25 do_test ioerr-1.$n.1 { 26 set ::sqlite_io_error_pending 0 27 db close 28 catch {file delete -force test.db} 29 catch {file delete -force test.db-journal} 30 sqlite db test.db 31 execsql {SELECT * FROM sqlite_master} 32 } {} 33 do_test ioerr-1.$n.2 [subst { 34 set ::sqlite_io_error_pending $n 35 }] $n 36 do_test ioerr-1.$n.3 { 37 set r [catch {db eval { 38 CREATE TABLE t1(a,b,c); 39 SELECT * FROM sqlite_master; 40 BEGIN TRANSACTION; 41 INSERT INTO t1 VALUES(1,2,3); 42 INSERT INTO t1 VALUES(4,5,6); 43 ROLLBACK; 44 SELECT * FROM t1; 45 BEGIN TRANSACTION; 46 INSERT INTO t1 VALUES(1,2,3); 47 INSERT INTO t1 VALUES(4,5,6); 48 COMMIT; 49 SELECT * FROM t1; 50 DELETE FROM t1 WHERE a<100; 51 }} msg] 52 # if {$r} {puts $msg} 53 set ::go [expr {$::sqlite_io_error_pending<=0}] 54 expr {$::sqlite_io_error_pending>0 || $r!=0} 55 } {1} 56} 57set ::sqlite_io_error_pending 0 58 59proc cksum {{db db}} { 60 set txt [$db eval {SELECT name, type, sql FROM sqlite_master}]\n 61 foreach tbl [$db eval {SELECT name FROM sqlite_master WHERE type='table'}] { 62 append txt [$db eval "SELECT * FROM $tbl"]\n 63 } 64 foreach prag {default_synchronous default_cache_size} { 65 append txt $prag-[$db eval "PRAGMA $prag"]\n 66 } 67 set cksum [string length $txt]-[md5 $txt] 68 # puts $cksum-[file size test.db] 69 return $cksum 70} 71 72set ::go 1 73for {set n 1} {$go} {incr n} { 74 do_test ioerr-2.$n.1 { 75 set ::sqlite_io_error_pending 0 76 db close 77 catch {file delete -force test.db} 78 catch {file delete -force test.db-journal} 79 sqlite db test.db 80 execsql { 81 BEGIN; 82 CREATE TABLE t1(a, b, c); 83 INSERT INTO t1 VALUES(1, randstr(5,50), randstr(5,50)); 84 INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1; 85 INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1; 86 INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1; 87 INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1; 88 INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1; 89 INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1; 90 INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1; 91 CREATE TABLE t2 AS SELECT * FROM t1; 92 CREATE TABLE t3 AS SELECT * FROM t1; 93 COMMIT; 94 DROP TABLE t2; 95 } 96 set ::cksum [cksum] 97 execsql { 98 SELECT name FROM sqlite_master WHERE type='table' 99 } 100 } {t1 t3} 101 do_test ioerr-2.$n.2 [subst { 102 set ::sqlite_io_error_pending $n 103 }] $n 104 do_test ioerr-2.$n.3 { 105 set r [catch {db eval { 106 VACUUM; 107 }} msg] 108 # puts "error_pending=$::sqlite_io_error_pending" 109 # if {$r} {puts $msg} 110 set ::go [expr {$::sqlite_io_error_pending<=0}] 111 expr {$::sqlite_io_error_pending>0 || $r!=0} 112 set ::sqlite_io_error_pending 0 113 db close 114 sqlite db test.db 115 cksum 116 } $cksum 117} 118set ::sqlite_io_error_pending 0 119 120finish_test 121