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| 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 | |
| 22 # Create a database. | |
| 23 # | |
| 24 do_test rdonly-1.1 { | |
| 25 execsql { | |
| 26 CREATE TABLE t1(x); | |
| 27 INSERT INTO t1 VALUES(1); | |
| 28 SELECT * FROM t1; | |
| 29 } | |
| 30 } {1} | |
| 31 | |
| 32 # Changes the write version from 1 to 2. Verify that the database | |
| 33 # can be read but not written. | |
| 34 # | |
| 35 do_test rdonly-1.2 { | |
| 36 db close | |
| 37 hexio_get_int [hexio_read test.db 18 1] | |
| 38 } 1 | |
| 39 do_test rdonly-1.3 { | |
| 40 hexio_write test.db 18 02 | |
| 41 sqlite3 db test.db | |
| 42 execsql { | |
| 43 SELECT * FROM t1; | |
| 44 } | |
| 45 } {1} | |
| 46 do_test rdonly-1.4 { | |
| 47 catchsql { | |
| 48 INSERT INTO t1 VALUES(2) | |
| 49 } | |
| 50 } {1 {attempt to write a readonly database}} | |
| 51 | |
| 52 # Change the write version back to 1. Verify that the database | |
| 53 # is read-write again. | |
| 54 # | |
| 55 do_test rdonly-1.5 { | |
| 56 db close | |
| 57 hexio_write test.db 18 01 | |
| 58 sqlite3 db test.db | |
| 59 catchsql { | |
| 60 INSERT INTO t1 VALUES(2); | |
| 61 SELECT * FROM t1; | |
| 62 } | |
| 63 } {0 {1 2}} | |
| 64 | |
| 65 # Now, after connection [db] has loaded the database schema, modify the | |
| 66 # write-version of the file (and the change-counter, so that the | |
| 67 # write-version is reloaded). This way, SQLite does not discover that | |
| 68 # the database is read-only until after it is locked. | |
| 69 # | |
| 70 do_test rdonly-1.6 { | |
| 71 hexio_write test.db 18 02 ; # write-version | |
| 72 hexio_write test.db 24 11223344 ; # change-counter | |
| 73 catchsql { | |
| 74 INSERT INTO t1 VALUES(2); | |
| 75 } | |
| 76 } {1 {attempt to write a readonly database}} | |
| 77 | |
| 78 finish_test | |
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