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| 1 # 2011 December 20 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # This file implements regression tests for SQLite library. The | |
| 12 # focus of this script testing the ability of SQLite to handle database | |
| 13 # files larger than 4GB. | |
| 14 # | |
| 15 | |
| 16 if {[file exists skip-big-file]} return | |
| 17 if {$tcl_platform(os)=="Darwin"} return | |
| 18 | |
| 19 set testdir [file dirname $argv0] | |
| 20 source $testdir/tester.tcl | |
| 21 set testprefix bigfile2 | |
| 22 | |
| 23 # Create a small database. | |
| 24 # | |
| 25 do_execsql_test 1.1 { | |
| 26 CREATE TABLE t1(a, b); | |
| 27 INSERT INTO t1 VALUES(1, 2); | |
| 28 } | |
| 29 | |
| 30 # Pad the file out to 4GB in size. Then clear the file-size field in the | |
| 31 # db header. This will cause SQLite to assume that the first 4GB of pages | |
| 32 # are actually in use and new pages will be appended to the file. | |
| 33 # | |
| 34 db close | |
| 35 if {[catch {fake_big_file 4096 [get_pwd]/test.db} msg]} { | |
| 36 puts "**** Unable to create a file larger than 4096 MB. *****" | |
| 37 finish_test | |
| 38 return | |
| 39 } | |
| 40 hexio_write test.db 28 00000000 | |
| 41 | |
| 42 do_test 1.2 { | |
| 43 file size test.db | |
| 44 } [expr 14 + 4096 * (1<<20)] | |
| 45 | |
| 46 # Now insert a large row. The overflow pages will be located past the 4GB | |
| 47 # boundary. Then, after opening and closing the database, test that the row | |
| 48 # can be read back in. | |
| 49 # | |
| 50 set str [string repeat k 30000] | |
| 51 do_test 1.3 { | |
| 52 sqlite3 db test.db | |
| 53 execsql { INSERT INTO t1 VALUES(3, $str) } | |
| 54 db close | |
| 55 sqlite3 db test.db | |
| 56 db one { SELECT b FROM t1 WHERE a = 3 } | |
| 57 } $str | |
| 58 | |
| 59 db close | |
| 60 delete_file test.db | |
| 61 | |
| 62 finish_test | |
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