sl@0: # 2001 September 15
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: # This file implements regression tests for SQLite library.
sl@0: #
sl@0: # The focus of this file is testing the ability of the database to
sl@0: # uses its rollback journal to recover intact (no database corruption)
sl@0: # from a power failure during the middle of a COMMIT. Even more
sl@0: # specifically, the tests in this file verify this functionality
sl@0: # for storage mediums with various sector sizes.
sl@0: #
sl@0: # $Id: crash2.test,v 1.6 2008/08/25 07:12:29 danielk1977 Exp $
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: 
sl@0: ifcapable !crashtest {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: db close
sl@0: 
sl@0: # This test is designed to check that the crash-test infrastructure
sl@0: # can create files that do not consist of an integer number of
sl@0: # simulated disk blocks (i.e. 3KB file using 2KB disk blocks).
sl@0: #
sl@0: do_test crash2-1.1 {
sl@0:   crashsql -delay 500 -file test.db -blocksize 2048 {
sl@0:     PRAGMA auto_vacuum=OFF;
sl@0:     PRAGMA page_size=1024;
sl@0:     BEGIN;
sl@0:     CREATE TABLE abc AS SELECT 1 AS a, 2 AS b, 3 AS c;
sl@0:     CREATE TABLE def AS SELECT 1 AS d, 2 AS e, 3 AS f;
sl@0:     COMMIT;
sl@0:   }
sl@0:   file size test.db
sl@0: } {3072}
sl@0: 
sl@0: for {set ii 0} {$ii < 5} {incr ii} {
sl@0: 
sl@0:   # Simple test using the database created above: Create a new
sl@0:   # table so that page 1 and page 4 are modified. Using a
sl@0:   # block-size of 2048 and page-size of 1024, this means
sl@0:   # pages 2 and 3 must also be saved in the journal to avoid
sl@0:   # risking corruption.
sl@0:   #
sl@0:   # The loop is so that this test can be run with a couple
sl@0:   # of different seeds for the random number generator.
sl@0:   #
sl@0:   do_test crash2-1.2.$ii {
sl@0:     crashsql -file test.db -blocksize 2048 [subst {
sl@0:       [string repeat {SELECT random();} $ii]
sl@0:       CREATE TABLE hij(h, i, j);
sl@0:     }]
sl@0:     sqlite3 db test.db
sl@0:     db eval {PRAGMA integrity_check}
sl@0:   } {ok}
sl@0: }
sl@0: 
sl@0: proc signature {} {
sl@0:   return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
sl@0: }
sl@0: 
sl@0: # Test case for crashing during journal sync with simulated
sl@0: # sector-size values from 1024 to 8192.
sl@0: #
sl@0: do_test crash2-2.0 {
sl@0:   execsql BEGIN
sl@0:   for {set n 0} {$n < 1000} {incr n} {
sl@0:     execsql "INSERT INTO abc VALUES($n, [expr 2*$n], [expr 3*$n])"
sl@0:   }
sl@0:   execsql {
sl@0:     INSERT INTO abc SELECT * FROM abc;
sl@0:     INSERT INTO abc SELECT * FROM abc;
sl@0:     INSERT INTO abc SELECT * FROM abc;
sl@0:     INSERT INTO abc SELECT * FROM abc;
sl@0:     INSERT INTO abc SELECT * FROM abc;
sl@0:   }
sl@0:   execsql COMMIT
sl@0:   expr ([file size test.db] / 1024) > 450
sl@0: } {1}
sl@0: for {set i 1} {$i < 30} {incr i} {
sl@0:   set sig [signature]
sl@0:   set sector [expr 1024 * 1<<($i%4)]
sl@0:   db close
sl@0:   do_test crash2-2.$i.1 {
sl@0:      crashsql -blocksize $sector -delay [expr $i%5 + 1] -file test.db-journal "
sl@0:        PRAGMA temp_store = memory;
sl@0:        BEGIN;
sl@0:        SELECT random() FROM abc LIMIT $i;
sl@0:        INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
sl@0:        DELETE FROM abc WHERE random()%2!=0;
sl@0:        COMMIT;
sl@0:      "
sl@0:   } {1 {child process exited abnormally}}
sl@0:   do_test crash2-2.$i.2 {
sl@0:     sqlite3 db test.db
sl@0:     signature
sl@0:   } $sig
sl@0: } 
sl@0: 
sl@0: 
sl@0: # Test case for crashing during database sync with simulated
sl@0: # sector-size values from 1024 to 8192.
sl@0: #
sl@0: for {set i 1} {$i < 10} {incr i} {
sl@0:   set sig [signature]
sl@0:   set sector [expr 1024 * 1<<($i%4)]
sl@0:   db close
sl@0:   do_test crash2-3.$i.1 {
sl@0:      crashsql -blocksize $sector -file test.db "
sl@0:        BEGIN;
sl@0:        SELECT random() FROM abc LIMIT $i;
sl@0:        INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
sl@0:        DELETE FROM abc WHERE random()%2!=0;
sl@0:        COMMIT;
sl@0:      "
sl@0:   } {1 {child process exited abnormally}}
sl@0:   do_test crash2-3.$i.2 {
sl@0:     sqlite3 db test.db
sl@0:     signature
sl@0:   } $sig
sl@0: } 
sl@0: 
sl@0: finish_test