Return to corrupt8.test CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test

Annotation of embedaddon/sqlite3/test/corrupt8.test, revision 1.1

1.1     ! misho       1: # 2008 July 9
        !             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 pointer map pages.
        !            16: #
        !            17: # $Id: corrupt8.test,v 1.2 2008/07/11 03:34:10 drh Exp $
        !            18: 
        !            19: set testdir [file dirname $argv0]
        !            20: source $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: #
        !            25: do_not_use_codec
        !            26: 
        !            27: # We must have the page_size pragma for these tests to work.
        !            28: #
        !            29: ifcapable !pager_pragmas||!autovacuum {
        !            30:   finish_test
        !            31:   return
        !            32: }
        !            33: 
        !            34: # Create a database to work with.
        !            35: #
        !            36: do_test corrupt8-1.1 {
        !            37:   execsql {
        !            38:     PRAGMA auto_vacuum=1;
        !            39:     PRAGMA page_size=1024;
        !            40:     CREATE TABLE t1(x);
        !            41:     INSERT INTO t1(x) VALUES(1);
        !            42:     INSERT INTO t1(x) VALUES(2);
        !            43:     INSERT INTO t1(x) SELECT x+2 FROM t1;
        !            44:     INSERT INTO t1(x) SELECT x+4 FROM t1;
        !            45:     INSERT INTO t1(x) SELECT x+8 FROM t1;
        !            46:     INSERT INTO t1(x) SELECT x+16 FROM t1;
        !            47:     INSERT INTO t1(x) SELECT x+32 FROM t1;
        !            48:     INSERT INTO t1(x) SELECT x+64 FROM t1;
        !            49:     INSERT INTO t1(x) SELECT x+128 FROM t1;
        !            50:     INSERT INTO t1(x) SELECT x+256 FROM t1;
        !            51:     CREATE TABLE t2(a,b);
        !            52:     INSERT INTO t2 SELECT x, x*x FROM t1;
        !            53:   }
        !            54:   expr {[file size test.db]>1024*12}
        !            55: } {1}
        !            56: integrity_check corrupt8-1.2
        !            57: 
        !            58: # Loop through each ptrmap entry.  Corrupt the entry and make sure the
        !            59: # corruption is detected by the integrity_check.
        !            60: #
        !            61: for {set i 1024} {$i<2048} {incr i 5} {
        !            62:   set oldval [hexio_read test.db $i 1]
        !            63:   if {$oldval==0} break
        !            64:   hexio_write test.db $i 00
        !            65:   do_test corrupt8-2.$i.0 {
        !            66:     db close
        !            67:     sqlite3 db test.db
        !            68:     set x [db eval {PRAGMA integrity_check}]
        !            69:     expr {$x!="ok"}
        !            70:   } {1}
        !            71:   for {set k 1} {$k<=5} {incr k} {
        !            72:     if {$k==$oldval} continue
        !            73:     hexio_write test.db $i 0$k
        !            74:     do_test corrupt8-2.$i.$k {
        !            75:       db close
        !            76:       sqlite3 db test.db
        !            77:       set x [db eval {PRAGMA integrity_check}]
        !            78:       expr {$x!="ok"}
        !            79:     } {1}
        !            80:   }
        !            81:   hexio_write test.db $i 06
        !            82:   do_test corrupt8-2.$i.6 {
        !            83:     db close
        !            84:     sqlite3 db test.db
        !            85:     set x [db eval {PRAGMA integrity_check}]
        !            86:     expr {$x!="ok"}
        !            87:   } {1}
        !            88:   hexio_write test.db $i $oldval
        !            89:   if {$oldval>2} {
        !            90:     set i2 [expr {$i+1+$i%4}]
        !            91:     set oldval [hexio_read test.db $i2 1]
        !            92:     hexio_write test.db $i2 [format %02x [expr {($oldval+1)&0xff}]]
        !            93:     do_test corrupt8-2.$i.7 {
        !            94:       db close
        !            95:       sqlite3 db test.db
        !            96:       set x [db eval {PRAGMA integrity_check}]
        !            97:       expr {$x!="ok"}
        !            98:     } {1}
        !            99:     hexio_write test.db $i2 $oldval
        !           100:   }
        !           101: }
        !           102: 
        !           103: 
        !           104: finish_test