# 2002 November 30

#

# 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 script testing the ability of SQLite to handle database

# files larger than 4GB.

#

# $Id: bigfile.test,v 1.10 2007/08/18 10:59:21 danielk1977 Exp $

#

set testdir [file dirname $argv0]

source $testdir/tester.tcl

# If SQLITE_DISABLE_LFS is defined, omit this file.

ifcapable !lfs {

  finish_test

  return

}

# These tests only work for Tcl version 8.4 and later.  Prior to 8.4,

# Tcl was unable to handle large files.

#

scan $::tcl_version %f vx

if {$vx<8.4} return

# Mac OS X does not handle large files efficiently.  So skip this test

# on that platform.

if {$tcl_platform(os)=="Darwin"} return

# This is the md5 checksum of all the data in table t1 as created

# by the first test.  We will use this number to make sure that data

# never changes.

#

set MAGIC_SUM {593f1efcfdbe698c28b4b1b693f7e4cf}

do_test bigfile-1.1 {

  execsql {

    BEGIN;

    CREATE TABLE t1(x);

    INSERT INTO t1 VALUES('abcdefghijklmnopqrstuvwxyz');

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;

    COMMIT;

  }

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

# Try to create a large file - a file that is larger than 2^32 bytes.

# If this fails, it means that the system being tested does not support

# large files.  So skip all of the remaining tests in this file.

#

db close

if {[catch {fake_big_file 4096 test.db} msg]} {

  puts "**** Unable to create a file larger than 4096 MB. *****"

  puts "$msg"

  finish_test

  return

}

do_test bigfile-1.2 {

  sqlite3 db test.db

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

# The previous test may fail on some systems because they are unable

# to handle large files.  If that is so, then skip all of the following

# tests.  We will know the above test failed because the "db" command

# does not exist.

#

if {[llength [info command db]]>0} {

do_test bigfile-1.3 {

  execsql {

    CREATE TABLE t2 AS SELECT * FROM t1;

    SELECT md5sum(x) FROM t2;

  }

} $::MAGIC_SUM

do_test bigfile-1.4 {

  db close

  sqlite3 db test.db

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

do_test bigfile-1.5 {

  execsql {

    SELECT md5sum(x) FROM t2;

  }

} $::MAGIC_SUM

db close

if {[catch {fake_big_file 8192 test.db}]} {

  puts "**** Unable to create a file larger than 8192 MB. *****"

  finish_test

  return

}

do_test bigfile-1.6 {

  sqlite3 db test.db

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

do_test bigfile-1.7 {

  execsql {

    CREATE TABLE t3 AS SELECT * FROM t1;

    SELECT md5sum(x) FROM t3;

  }

} $::MAGIC_SUM

do_test bigfile-1.8 {

  db close

  sqlite3 db test.db

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

do_test bigfile-1.9 {

  execsql {

    SELECT md5sum(x) FROM t2;

  }

} $::MAGIC_SUM

do_test bigfile-1.10 {

  execsql {

    SELECT md5sum(x) FROM t3;

  }

} $::MAGIC_SUM

db close

if {[catch {fake_big_file 16384 test.db}]} {

  puts "**** Unable to create a file larger than 16384 MB. *****"

  finish_test

  return

}

do_test bigfile-1.11 {

  sqlite3 db test.db

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

do_test bigfile-1.12 {

  execsql {

    CREATE TABLE t4 AS SELECT * FROM t1;

    SELECT md5sum(x) FROM t4;

  }

} $::MAGIC_SUM

do_test bigfile-1.13 {

  db close

  sqlite3 db test.db

  execsql {

    SELECT md5sum(x) FROM t1;

  }

} $::MAGIC_SUM

do_test bigfile-1.14 {

  execsql {

    SELECT md5sum(x) FROM t2;

  }

} $::MAGIC_SUM

do_test bigfile-1.15 {

  execsql {

    SELECT md5sum(x) FROM t3;

  }

} $::MAGIC_SUM

do_test bigfile-1.16 {

  execsql {

    SELECT md5sum(x) FROM t3;

  }

} $::MAGIC_SUM

do_test bigfile-1.17 {

  execsql {

    SELECT md5sum(x) FROM t4;

  }

} $::MAGIC_SUM

} ;# End of the "if( db command exists )"

finish_test