# 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