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