| Index: third_party/sqlite/test/fuzz3.test
|
| ===================================================================
|
| --- third_party/sqlite/test/fuzz3.test (revision 56608)
|
| +++ third_party/sqlite/test/fuzz3.test (working copy)
|
| @@ -1,169 +0,0 @@
|
| -# 2007 May 10
|
| -#
|
| -# 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 checking the libraries response to subtly corrupting
|
| -# the database file by changing the values of pseudo-randomly selected
|
| -# bytes.
|
| -#
|
| -# $Id: fuzz3.test,v 1.3 2009/01/05 17:19:03 drh Exp $
|
| -
|
| -set testdir [file dirname $argv0]
|
| -source $testdir/tester.tcl
|
| -
|
| -
|
| -expr srand(123)
|
| -
|
| -proc rstring {n} {
|
| - set str s
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| - while {[string length $str] < $n} {
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| - append str [expr rand()]
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| - }
|
| - return [string range $str 0 $n]
|
| -}
|
| -
|
| -# Return a randomly generated SQL literal.
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| -#
|
| -proc rvalue {} {
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| - switch -- [expr int(rand()*5)] {
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| - 0 { # SQL NULL value.
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| - return NULL
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| - }
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| - 1 { # Integer value.
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| - return [expr int(rand()*1024)]
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| - }
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| - 2 { # Real value.
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| - return [expr rand()]
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| - }
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| - 3 { # String value.
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| - set n [expr int(rand()*2500)]
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| - return "'[rstring $n]'"
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| - }
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| - 4 { # Blob value.
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| - set n [expr int(rand()*2500)]
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| - return "CAST('[rstring $n]' AS BLOB)"
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| - }
|
| - }
|
| -}
|
| -
|
| -proc db_checksum {} {
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| - set cksum [execsql { SELECT md5sum(a, b, c) FROM t1 }]
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| - append cksum [execsql { SELECT md5sum(d, e, f) FROM t2 }]
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| - set cksum
|
| -}
|
| -
|
| -# Modify a single byte in the file 'test.db' using tcl IO commands. The
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| -# argument value, which must be an integer, determines both the offset of
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| -# the byte that is modified, and the value that it is set to. The lower
|
| -# 8 bits of iMod determine the new byte value. The offset of the byte
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| -# modified is the value of ($iMod >> 8).
|
| -#
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| -# The return value is the iMod value required to restore the file
|
| -# to its original state. The command:
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| -#
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| -# modify_database [modify_database $x]
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| -#
|
| -# leaves the file in the same state as it was in at the start of the
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| -# command (assuming that the file is at least ($x>>8) bytes in size).
|
| -#
|
| -proc modify_database {iMod} {
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| - set blob [binary format c [expr {$iMod&0xFF}]]
|
| - set offset [expr {$iMod>>8}]
|
| -
|
| - set fd [open test.db r+]
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| - fconfigure $fd -encoding binary -translation binary
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| - seek $fd $offset
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| - set old_blob [read $fd 1]
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| - seek $fd $offset
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| - puts -nonewline $fd $blob
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| - close $fd
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| -
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| - binary scan $old_blob c iOld
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| - return [expr {($offset<<8) + ($iOld&0xFF)}]
|
| -}
|
| -
|
| -proc purge_pcache {} {
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| - ifcapable !memorymanage {
|
| - db close
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| - sqlite3 db test.db
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| - } else {
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| - sqlite3_release_memory 10000000
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| - }
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| - if {[lindex [pcache_stats] 1] != 0} {
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| - error "purge_pcache failed: [pcache_stats]"
|
| - }
|
| -}
|
| -
|
| -# This block creates a database to work with.
|
| -#
|
| -do_test fuzz3-1 {
|
| - execsql {
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| - BEGIN;
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| - CREATE TABLE t1(a, b, c);
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| - CREATE TABLE t2(d, e, f);
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| - CREATE INDEX i1 ON t1(a, b, c);
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| - CREATE INDEX i2 ON t2(d, e, f);
|
| - }
|
| - for {set i 0} {$i < 50} {incr i} {
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| - execsql "INSERT INTO t1 VALUES([rvalue], [rvalue], [rvalue])"
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| - execsql "INSERT INTO t2 VALUES([rvalue], [rvalue], [rvalue])"
|
| - }
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| - execsql COMMIT
|
| -} {}
|
| -
|
| -set ::cksum [db_checksum]
|
| -do_test fuzz3-2 {
|
| - db_checksum
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| -} $::cksum
|
| -
|
| -for {set ii 0} {$ii < 5000} {incr ii} {
|
| - purge_pcache
|
| -
|
| - # Randomly modify a single byte of the database file somewhere within
|
| - # the first 100KB of the file.
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| - set iNew [expr int(rand()*5*1024*256)]
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| - set iOld [modify_database $iNew]
|
| -
|
| - set iTest 0
|
| - foreach sql {
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| - {SELECT * FROM t2 ORDER BY d}
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| - {SELECT * FROM t1}
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| - {SELECT * FROM t2}
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| - {SELECT * FROM t1 ORDER BY a}
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| - {SELECT * FROM t1 WHERE a = (SELECT a FROM t1 WHERE rowid=25)}
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| - {SELECT * FROM t2 WHERE d = (SELECT d FROM t2 WHERE rowid=1)}
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| - {SELECT * FROM t2 WHERE d = (SELECT d FROM t2 WHERE rowid=50)}
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| - {PRAGMA integrity_check}
|
| - } {
|
| - do_test fuzz3-$ii.$iNew.[incr iTest] {
|
| - foreach {rc msg} [catchsql $sql] {}
|
| - if {$rc == 0
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| - || $msg eq "database or disk is full"
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| - || $msg eq "database disk image is malformed"
|
| - || $msg eq "file is encrypted or is not a database"
|
| - || [string match "malformed database schema*" $msg]
|
| - } {
|
| - set msg ok
|
| - }
|
| - set msg
|
| - } {ok}
|
| - }
|
| -
|
| - # Restore the original database file content. Test that the correct
|
| - # checksum is now returned.
|
| - #
|
| - purge_pcache
|
| - modify_database $iOld
|
| - do_test fuzz3-$ii.$iNew.[incr iTest] {
|
| - db_checksum
|
| - } $::cksum
|
| -}
|
| -
|
| -finish_test
|
|
|