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109 lines
2.9 KiB
Plaintext
109 lines
2.9 KiB
Plaintext
# 2008 July 9
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library.
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#
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# This file implements tests to make sure SQLite does not crash or
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# segfault if it sees a corrupt database file. It specifically focuses
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# on corrupt pointer map pages.
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#
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# $Id: corrupt8.test,v 1.2 2008/07/11 03:34:10 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Do not use a codec for tests in this file, as the database file is
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# manipulated directly using tcl scripts (using the [hexio_write] command).
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#
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do_not_use_codec
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# These tests deal with corrupt database files
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#
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database_may_be_corrupt
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# We must have the page_size pragma for these tests to work.
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#
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ifcapable !pager_pragmas||!autovacuum {
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finish_test
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return
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}
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# Create a database to work with.
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#
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do_test corrupt8-1.1 {
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execsql {
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PRAGMA auto_vacuum=1;
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PRAGMA page_size=1024;
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CREATE TABLE t1(x);
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INSERT INTO t1(x) VALUES(1);
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INSERT INTO t1(x) VALUES(2);
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INSERT INTO t1(x) SELECT x+2 FROM t1;
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INSERT INTO t1(x) SELECT x+4 FROM t1;
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INSERT INTO t1(x) SELECT x+8 FROM t1;
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INSERT INTO t1(x) SELECT x+16 FROM t1;
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INSERT INTO t1(x) SELECT x+32 FROM t1;
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INSERT INTO t1(x) SELECT x+64 FROM t1;
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INSERT INTO t1(x) SELECT x+128 FROM t1;
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INSERT INTO t1(x) SELECT x+256 FROM t1;
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CREATE TABLE t2(a,b);
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INSERT INTO t2 SELECT x, x*x FROM t1;
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}
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expr {[file size test.db]>1024*12}
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} {1}
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integrity_check corrupt8-1.2
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# Loop through each ptrmap entry. Corrupt the entry and make sure the
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# corruption is detected by the integrity_check.
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#
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for {set i 1024} {$i<2048} {incr i 5} {
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set oldval [hexio_read test.db $i 1]
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if {$oldval==0} break
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hexio_write test.db $i 00
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do_test corrupt8-2.$i.0 {
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db close
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sqlite3 db test.db
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set x [db eval {PRAGMA integrity_check}]
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expr {$x!="ok"}
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} {1}
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for {set k 1} {$k<=5} {incr k} {
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if {$k==$oldval} continue
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hexio_write test.db $i 0$k
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do_test corrupt8-2.$i.$k {
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db close
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sqlite3 db test.db
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set x [db eval {PRAGMA integrity_check}]
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expr {$x!="ok"}
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} {1}
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}
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hexio_write test.db $i 06
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do_test corrupt8-2.$i.6 {
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db close
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sqlite3 db test.db
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set x [db eval {PRAGMA integrity_check}]
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expr {$x!="ok"}
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} {1}
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hexio_write test.db $i $oldval
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if {$oldval>2} {
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set i2 [expr {$i+1+$i%4}]
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set oldval [hexio_read test.db $i2 1]
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hexio_write test.db $i2 [format %02x [expr {($oldval+1)&0xff}]]
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do_test corrupt8-2.$i.7 {
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db close
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sqlite3 db test.db
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set x [db eval {PRAGMA integrity_check}]
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expr {$x!="ok"}
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} {1}
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hexio_write test.db $i2 $oldval
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}
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}
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finish_test
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