os/persistentdata/persistentstorage/sqlite3api/TEST/TclScript/rdonly.test
changeset 0 bde4ae8d615e
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/persistentdata/persistentstorage/sqlite3api/TEST/TclScript/rdonly.test	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,78 @@
     1.4 +# 2007 April 24
     1.5 +#
     1.6 +# The author disclaims copyright to this source code.  In place of
     1.7 +# a legal notice, here is a blessing:
     1.8 +#
     1.9 +#    May you do good and not evil.
    1.10 +#    May you find forgiveness for yourself and forgive others.
    1.11 +#    May you share freely, never taking more than you give.
    1.12 +#
    1.13 +#***********************************************************************
    1.14 +# This file implements regression tests for SQLite library.
    1.15 +#
    1.16 +# This file implements tests to make sure SQLite treats a database
    1.17 +# as readonly if its write version is set to  high.
    1.18 +#
    1.19 +# $Id: rdonly.test,v 1.2 2008/07/08 10:19:58 danielk1977 Exp $
    1.20 +
    1.21 +set testdir [file dirname $argv0]
    1.22 +source $testdir/tester.tcl
    1.23 +
    1.24 +
    1.25 +# Create a database.
    1.26 +#
    1.27 +do_test rdonly-1.1 {
    1.28 +  execsql {
    1.29 +    CREATE TABLE t1(x);
    1.30 +    INSERT INTO t1 VALUES(1);
    1.31 +    SELECT * FROM t1;
    1.32 +  }
    1.33 +} {1}
    1.34 +
    1.35 +# Changes the write version from 1 to 2.  Verify that the database
    1.36 +# can be read but not written.
    1.37 +#
    1.38 +do_test rdonly-1.2 {
    1.39 +  db close
    1.40 +  hexio_get_int [hexio_read test.db 18 1]
    1.41 +} 1
    1.42 +do_test rdonly-1.3 {
    1.43 +  hexio_write test.db 18 02
    1.44 +  sqlite3 db test.db
    1.45 +  execsql {
    1.46 +    SELECT * FROM t1;
    1.47 +  }
    1.48 +} {1}
    1.49 +do_test rdonly-1.4 {
    1.50 +  catchsql {
    1.51 +    INSERT INTO t1 VALUES(2)
    1.52 +  }
    1.53 +} {1 {attempt to write a readonly database}}
    1.54 +
    1.55 +# Change the write version back to 1.  Verify that the database
    1.56 +# is read-write again.
    1.57 +#
    1.58 +do_test rdonly-1.5 {
    1.59 +  db close
    1.60 +  hexio_write test.db 18 01
    1.61 +  sqlite3 db test.db
    1.62 +  catchsql {
    1.63 +    INSERT INTO t1 VALUES(2);
    1.64 +    SELECT * FROM t1;
    1.65 +  }
    1.66 +} {0 {1 2}}
    1.67 +
    1.68 +# Now, after connection [db] has loaded the database schema, modify the
    1.69 +# write-version of the file (and the change-counter, so that the 
    1.70 +# write-version is reloaded). This way, SQLite does not discover that
    1.71 +# the database is read-only until after it is locked.
    1.72 +#
    1.73 +do_test rdonly-1.6 {
    1.74 +  hexio_write test.db 18 02              ; # write-version
    1.75 +  hexio_write test.db 24 11223344        ; # change-counter
    1.76 +  catchsql {
    1.77 +    INSERT INTO t1 VALUES(2);
    1.78 +  }
    1.79 +} {1 {attempt to write a readonly database}}
    1.80 +
    1.81 +finish_test