Import SQLite 3.7.6.3.

third_party/sqlite/src/test/bigfile.test

 # 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 1.12 2009/03/05 04:27:08 shane Exp $
 #
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 
+# Do not use a codec for this file, as the database is manipulated using
+# external methods (the [fake_big_file] and [hexio_write] commands).
+#
+do_not_use_codec
+
 # 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
@@ skipping 31 matching lines @@
 # 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 [pwd]/test.db} msg]} {
   puts "**** Unable to create a file larger than 4096 MB. *****"
   finish_test
   return
 }
+hexio_write test.db 28 00000000
 
 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
@@ skipping 19 matching lines @@
     SELECT md5sum(x) FROM t1;
   }
 } $::MAGIC_SUM
 
 db close
 if {[catch {fake_big_file 8192 [pwd]/test.db}]} {
   puts "**** Unable to create a file larger than 8192 MB. *****"
   finish_test
   return
 }
+hexio_write test.db 28 00000000
 
 do_test bigfile-1.5 {
   sqlite3 db test.db
   execsql {
     SELECT md5sum(x) FROM t1;
   }
 } $::MAGIC_SUM
 do_test bigfile-1.6 {
   sqlite3 db test.db
   execsql {
@@ skipping 18 matching lines @@
     SELECT md5sum(x) FROM t2;
   }
 } $::MAGIC_SUM
 
 db close
 if {[catch {fake_big_file 16384 [pwd]/test.db}]} {
   puts "**** Unable to create a file larger than 16384 MB. *****"
   finish_test
   return
 }
+hexio_write test.db 28 00000000
 
 do_test bigfile-1.10 {
   sqlite3 db test.db
   execsql {
     SELECT md5sum(x) FROM t1;
   }
 } $::MAGIC_SUM
 do_test bigfile-1.11 {
   sqlite3 db test.db
   execsql {
@@ skipping 24 matching lines @@
     SELECT md5sum(x) FROM t2;
   }
 } $::MAGIC_SUM
 do_test bigfile-1.16 {
   execsql {
     SELECT md5sum(x) FROM t3;
   }
 } $::MAGIC_SUM
 
 finish_test