# 2006 February 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.

 #

 # This file implements tests to verify that ticket #1667 has been

 # fixed.  

 #

 #

 # $Id: tkt1667.test,v 1.3 2008/07/12 14:52:20 drh Exp $

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 ifcapable !autovacuum||!tclvar {

   finish_test

   return

 }

 db close

 file delete -force test.db test.db-journal

 # Set the pending byte offset such that the page it is on is

 # the first autovacuum pointer map page in the file (assume a page 

 # size of 1024).

 set first_ptrmap_page   [expr 1024/5 + 3]

 set sqlite_pending_byte [expr 1024 * ($first_ptrmap_page-1)]

 sqlite db test.db

 do_test tkt1667-1 {

   execsql {

     PRAGMA auto_vacuum = 1;

     BEGIN;

     CREATE TABLE t1(a, b);

   }

   for {set i 0} {$i < 500} {incr i} {

     execsql {

       INSERT INTO t1 VALUES($i, randstr(1000, 2000))

     }

   }

   execsql {

     COMMIT;

   }

 } {}

 for {set i 0} {$i < 500} {incr i} {

   do_test tkt1667-2.$i.1 {

     execsql {

       DELETE FROM t1 WHERE a = $i;

     }

   } {}

   integrity_check tkt1667-2.$i.2

 }

 do_test tkt1667-3 {

   execsql {

     BEGIN;

   }

   for {set i 0} {$i < 500} {incr i} {

     execsql {

       INSERT INTO t1 VALUES($i, randstr(1000, 2000))

     }

   }

   execsql {

     COMMIT;

   }

 } {}

 do_test tkt1667-4.1 {

   execsql {

     DELETE FROM t1;

   }

 } {}

 integrity_check tkt1667-4.2

 finish_test