# 2011 December 20 # # 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. # if {[file exists skip-big-file]} return if {$tcl_platform(os)=="Darwin"} return set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix bigfile2 # Create a small database. # do_execsql_test 1.1 { CREATE TABLE t1(a, b); INSERT INTO t1 VALUES(1, 2); } # Pad the file out to 4GB in size. Then clear the file-size field in the # db header. This will cause SQLite to assume that the first 4GB of pages # are actually in use and new pages will be appended to the file. # db close if {[catch {fake_big_file 4096 [get_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 1.2 { file size test.db } [expr 14 + 4096 * (1<<20)] # Now insert a large row. The overflow pages will be located past the 4GB # boundary. Then, after opening and closing the database, test that the row # can be read back in. # set str [string repeat k 30000] do_test 1.3 { sqlite3 db test.db execsql { INSERT INTO t1 VALUES(3, $str) } db close sqlite3 db test.db db one { SELECT b FROM t1 WHERE a = 3 } } $str db close delete_file test.db finish_test