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 85
