1# 2008 July 11 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. 12# 13# This file implements tests to make sure SQLite does not crash or 14# segfault if it sees a corrupt database file. It specifically focuses 15# on corrupt database headers. 16# 17# $Id: corruptA.test,v 1.1 2008/07/11 16:39:23 drh Exp $ 18 19set testdir [file dirname $argv0] 20source $testdir/tester.tcl 21 22# Do not use a codec for tests in this file, as the database file is 23# manipulated directly using tcl scripts (using the [hexio_write] command). 24# 25do_not_use_codec 26 27# These tests deal with corrupt database files 28# 29database_may_be_corrupt 30 31 32# Create a database to work with. 33# 34do_test corruptA-1.1 { 35 execsql { 36 CREATE TABLE t1(x); 37 INSERT INTO t1(x) VALUES(1); 38 } 39 expr {[file size test.db]>=1024} 40} {1} 41integrity_check corruptA-1.2 42 43# Corrupt the file header in various ways and make sure the corruption 44# is detected when opening the database file. 45# 46db close 47forcecopy test.db test.db-template 48 49set unreadable_version 02 50ifcapable wal { set unreadable_version 03 } 51do_test corruptA-2.1 { 52 forcecopy test.db-template test.db 53 hexio_write test.db 19 $unreadable_version ;# the read format number 54 sqlite3 db test.db 55 catchsql {SELECT * FROM t1} 56} {1 {file is encrypted or is not a database}} 57 58do_test corruptA-2.2 { 59 db close 60 forcecopy test.db-template test.db 61 hexio_write test.db 21 41 ;# max embedded payload fraction 62 sqlite3 db test.db 63 catchsql {SELECT * FROM t1} 64} {1 {file is encrypted or is not a database}} 65 66do_test corruptA-2.3 { 67 db close 68 forcecopy test.db-template test.db 69 hexio_write test.db 22 1f ;# min embedded payload fraction 70 sqlite3 db test.db 71 catchsql {SELECT * FROM t1} 72} {1 {file is encrypted or is not a database}} 73 74do_test corruptA-2.4 { 75 db close 76 forcecopy test.db-template test.db 77 hexio_write test.db 23 21 ;# min leaf payload fraction 78 sqlite3 db test.db 79 catchsql {SELECT * FROM t1} 80} {1 {file is encrypted or is not a database}} 81 82 83finish_test 84