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 18set testdir [file dirname $argv0] 19source $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# 24do_not_use_codec 25 26# Create a database. 27# 28do_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# 39do_test rdonly-1.2 { 40 db close 41 hexio_get_int [hexio_read test.db 18 1] 42} 1 43do_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} 50do_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# 59do_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# 74set ro_version 02 75ifcapable wal { set ro_version 03 } 76do_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 84finish_test 85