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Annotation of embedaddon/sqlite3/test/bigfile2.test, revision 1.1

1.1     ! misho       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: set testdir [file dirname $argv0]
        !            17: source $testdir/tester.tcl
        !            18: set testprefix bigfile2
        !            19: 
        !            20: # Create a small database.
        !            21: #
        !            22: do_execsql_test 1.1 {
        !            23:   CREATE TABLE t1(a, b);
        !            24:   INSERT INTO t1 VALUES(1, 2);
        !            25: }
        !            26: 
        !            27: # Pad the file out to 4GB in size. Then clear the file-size field in the
        !            28: # db header. This will cause SQLite to assume that the first 4GB of pages
        !            29: # are actually in use and new pages will be appended to the file.
        !            30: #
        !            31: db close
        !            32: if {[catch {fake_big_file 4096 [pwd]/test.db} msg]} {
        !            33:   puts "**** Unable to create a file larger than 4096 MB. *****"
        !            34:   finish_test
        !            35:   return
        !            36: }
        !            37: hexio_write test.db 28 00000000
        !            38: 
        !            39: do_test 1.2 {
        !            40:   file size test.db
        !            41: } [expr 14 + 4096 * (1<<20)]
        !            42: 
        !            43: # Now insert a large row. The overflow pages will be located past the 4GB
        !            44: # boundary. Then, after opening and closing the database, test that the row
        !            45: # can be read back in. 
        !            46: # 
        !            47: set str [string repeat k 30000]
        !            48: do_test 1.3 {
        !            49:   sqlite3 db test.db
        !            50:   execsql { INSERT INTO t1 VALUES(3, $str) }
        !            51:   db close
        !            52:   sqlite3 db test.db
        !            53:   db one { SELECT b FROM t1 WHERE a = 3 }
        !            54: } $str
        !            55: 
        !            56: db close
        !            57: file delete test.db
        !            58: 
        !            59: finish_test