# 2001 October 12
#
# 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.  The
# focus of this file is testing for correct handling of I/O errors
# such as writes failing because the disk is full.
# 
# The tests in this file use special facilities that are only
# available in the SQLite test fixture.
#
# $Id: incrvacuum_ioerr.test,v 1.6 2008/07/12 14:52:20 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# If this build of the library does not support auto-vacuum, omit this
# whole file.
ifcapable {!autovacuum} {
  finish_test
  return
}

do_ioerr_test incrvacuum-ioerr-1 -cksum 1 -sqlprep {
  PRAGMA auto_vacuum = 'incremental';
  CREATE TABLE abc(a);
  INSERT INTO abc VALUES(randstr(1500,1500));
} -sqlbody {
  BEGIN;
  CREATE TABLE abc2(a);
  DELETE FROM abc;
  PRAGMA incremental_vacuum;
  COMMIT;
} 

# do_ioerr_test incrvacuum-ioerr-3 -start 1 -cksum 1 -tclprep {
#   db eval {
#     PRAGMA auto_vacuum = 'full';
#     PRAGMA cache_size = 10;
#     BEGIN;
#     CREATE TABLE abc(a, UNIQUE(a));
#   }
#   for {set ii 0} {$ii < 25} {incr ii} {
#     db eval {INSERT INTO abc VALUES(randstr(1500,1500))}
#   }
#   db eval COMMIT
# } -sqlbody {
#   BEGIN;
#   DELETE FROM abc WHERE (oid%3)==0;
#   INSERT INTO abc SELECT a || '1234567890' FROM abc WHERE oid%2;
#   CREATE INDEX abc_i ON abc(a);
#   DELETE FROM abc WHERE (oid%2)==0;
#   DROP INDEX abc_i;
#   COMMIT;
# }

do_ioerr_test incrvacuum-ioerr-2 -start 1 -cksum 1 -tclprep {
  db eval {
    PRAGMA auto_vacuum = 'full';
    PRAGMA cache_size = 10;
    BEGIN;
    CREATE TABLE abc(a, UNIQUE(a));
  }
  for {set ii 0} {$ii < 25} {incr ii} {
    db eval {INSERT INTO abc VALUES(randstr(1500,1500))}
  }
  db eval COMMIT
} -sqlbody {
  BEGIN;
  PRAGMA incremental_vacuum;
  DELETE FROM abc WHERE (oid%3)==0;
  PRAGMA incremental_vacuum;
  INSERT INTO abc SELECT a || '1234567890' FROM abc WHERE oid%2;
  PRAGMA incremental_vacuum;
  CREATE INDEX abc_i ON abc(a);
  DELETE FROM abc WHERE (oid%2)==0;
  PRAGMA incremental_vacuum;
  DROP INDEX abc_i;
  PRAGMA incremental_vacuum;
  COMMIT;
}

do_ioerr_test incrvacuum-ioerr-3 -start 1 -cksum 1 -tclprep {
  db eval {
    PRAGMA auto_vacuum = 'incremental';
    BEGIN;
    CREATE TABLE a(i integer, b blob);
    INSERT INTO a VALUES(1, randstr(1500,1500));
    INSERT INTO a VALUES(2, randstr(1500,1500));
  }
  db eval COMMIT
  db eval {DELETE FROM a WHERE oid}
} -sqlbody {
  PRAGMA incremental_vacuum(5);
} -cleanup {
  sqlite4 db test.db
  integrity_check incrvacuum-ioerr-2.$n.integritycheck
  db close
}


finish_test
