Return to wal4.test CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test

Annotation of embedaddon/sqlite3/test/wal4.test, revision 1.1

1.1     ! misho       1: # 2010 July 1
        !             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: # Verify that an empty database and a non-empty WAL file do not
        !            12: # result in database corruption
        !            13: #
        !            14: 
        !            15: set testdir [file dirname $argv0]
        !            16: source $testdir/tester.tcl
        !            17: source $testdir/malloc_common.tcl
        !            18: ifcapable !wal {finish_test ; return }
        !            19: 
        !            20: do_test wal4-1.1 {
        !            21:   execsql {
        !            22:     PRAGMA journal_mode=WAL;
        !            23:     CREATE TABLE t1(x);
        !            24:     INSERT INTO t1 VALUES(1);
        !            25:     INSERT INTO t1 VALUES(2);
        !            26:     SELECT x FROM t1 ORDER BY x;
        !            27:   }
        !            28: } {wal 1 2}
        !            29: 
        !            30: do_test wal4-1.2 {
        !            31:   # Save a copy of the file-system containing the wal and wal-index files 
        !            32:   # only (no database file).
        !            33:   faultsim_save_and_close
        !            34:   forcedelete sv_test.db
        !            35: } {}
        !            36: 
        !            37: do_test wal4-1.3 {
        !            38:   faultsim_restore_and_reopen
        !            39:   catchsql { SELECT * FROM t1 }
        !            40: } {1 {no such table: t1}}
        !            41: 
        !            42: do_faultsim_test wal4-2 -prep {
        !            43:   faultsim_restore_and_reopen
        !            44: } -body {
        !            45:   execsql { SELECT name FROM sqlite_master }
        !            46: } -test {
        !            47:   # Result should be zero rows (empty db file).
        !            48:   #
        !            49:   faultsim_test_result {0 {}}
        !            50: 
        !            51:   # If the SELECT finished successfully, the WAL file should have been
        !            52:   # deleted. In no case should the database file have been written, so
        !            53:   # it should still be zero bytes in size regardless of whether or not
        !            54:   # a fault was injected. Test these assertions:
        !            55:   #
        !            56:   if { $testrc==0 && [file exists test.db-wal] } { 
        !            57:     error "Wal file was not deleted"
        !            58:   }
        !            59:   if { [file size test.db]!=0 } { 
        !            60:     error "Db file grew to [file size test.db] bytes"
        !            61:   }
        !            62: }
        !            63: 
        !            64: finish_test