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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 # 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 |
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