# 2008 Feb 1

 #

 # 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 is to test that ticket #2920 is fixed.

 #

 # $Id: tkt2920.test,v 1.1 2008/02/02 02:48:52 drh Exp $

 #

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # Create a database file that is full.

 #

 do_test tkt2920-1.1 {

   db eval {

     PRAGMA page_size=1024;

     PRAGMA max_page_count=40;

     PRAGMA auto_vacuum=0;

     CREATE TABLE filler (fill);

   }

   file size test.db

 } {2048}

 do_test tkt2920-1.2 {

   db eval BEGIN

   for {set i 0} {$i<34} {incr i} {

     db eval {INSERT INTO filler VALUES(randomblob(1024))}

   }

   db eval COMMIT

 }  {}

 # Try to add a single new page to the full database.  We get

 # a disk full error.  But this does not corrupt the database.

 #

 do_test tkt2920-1.3 {

   db eval BEGIN

   catchsql {

      INSERT INTO filler VALUES(randomblob(1024))

   }

 } {1 {database or disk is full}}

 integrity_check tkt2920-1.4

 # Increase the maximum size of the database file by 1 page,

 # but then try to add a two-page record.  This also fails.

 #

 do_test tkt2920-1.5 {

   db eval {PRAGMA max_page_count=41}

   catchsql {

      INSERT INTO filler VALUES(randomblob(2048))

   }

 } {1 {database or disk is full}}

 integrity_check tkt2920-1.6

 # Increase the maximum size of the database by one more page.

 # This time the insert works.

 #

 do_test tkt2920-1.7 {

   db eval {PRAGMA max_page_count=42}

   catchsql {

      INSERT INTO filler VALUES(randomblob(2048))

   }

 } {0 {}}

 integrity_check tkt2920-1.8

 # The previous errors cancelled the transaction.

 #

 do_test tkt2920-1.9 {

   catchsql {COMMIT}

 } {1 {cannot commit - no transaction is active}}

 finish_test