Return to rdonly.test CVS log

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

Annotation of embedaddon/sqlite3/test/rdonly.test, revision 1.1.1.1

1.1       misho       1: # 2007 April 24
                      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.
                     12: #
                     13: # This file implements tests to make sure SQLite treats a database
                     14: # as readonly if its write version is set to  high.
                     15: #
                     16: # $Id: rdonly.test,v 1.2 2008/07/08 10:19:58 danielk1977 Exp $
                     17: 
                     18: set testdir [file dirname $argv0]
                     19: source $testdir/tester.tcl
                     20: 
                     21: # Do not use a codec for tests in this file, as the database file is
                     22: # manipulated directly using tcl scripts (using the [hexio_write] command).
                     23: #
                     24: do_not_use_codec
                     25: 
                     26: # Create a database.
                     27: #
                     28: do_test rdonly-1.1 {
                     29:   execsql {
                     30:     CREATE TABLE t1(x);
                     31:     INSERT INTO t1 VALUES(1);
                     32:     SELECT * FROM t1;
                     33:   }
                     34: } {1}
                     35: 
                     36: # Changes the write version from 1 to 3.  Verify that the database
                     37: # can be read but not written.
                     38: #
                     39: do_test rdonly-1.2 {
                     40:   db close
                     41:   hexio_get_int [hexio_read test.db 18 1]
                     42: } 1
                     43: do_test rdonly-1.3 {
                     44:   hexio_write test.db 18 03
                     45:   sqlite3 db test.db
                     46:   execsql {
                     47:     SELECT * FROM t1;
                     48:   }
                     49: } {1}
                     50: do_test rdonly-1.4 {
                     51:   catchsql {
                     52:     INSERT INTO t1 VALUES(2)
                     53:   }
                     54: } {1 {attempt to write a readonly database}}
                     55: 
                     56: # Change the write version back to 1.  Verify that the database
                     57: # is read-write again.
                     58: #
                     59: do_test rdonly-1.5 {
                     60:   db close
                     61:   hexio_write test.db 18 01
                     62:   sqlite3 db test.db
                     63:   catchsql {
                     64:     INSERT INTO t1 VALUES(2);
                     65:     SELECT * FROM t1;
                     66:   }
                     67: } {0 {1 2}}
                     68: 
                     69: # Now, after connection [db] has loaded the database schema, modify the
                     70: # write-version of the file (and the change-counter, so that the 
                     71: # write-version is reloaded). This way, SQLite does not discover that
                     72: # the database is read-only until after it is locked.
                     73: #
                     74: set ro_version 02
                     75: ifcapable wal { set ro_version 03 }
                     76: do_test rdonly-1.6 {
                     77:   hexio_write test.db 18 $ro_version     ; # write-version
                     78:   hexio_write test.db 24 11223344        ; # change-counter
                     79:   catchsql {
                     80:     INSERT INTO t1 VALUES(2);
                     81:   }
                     82: } {1 {attempt to write a readonly database}}
                     83: 
                     84: finish_test