# 2007 June 20

 #

 # The author disclaims copyright to this source code.  In place of

 # a legal notice, here is a blessing:

 #

 #    May you do good and not evil.

 #    May you find forgiveness for yourself and forgive others.

 #    May you share freely, never taking more than you give.

 #

 #*************************************************************************

 # This file implements regression tests for SQLite library.  The

 # focus of this script is testing the FTS2 module.

 #

 # $Id: fts2o.test,v 1.4 2007/07/02 10:16:50 danielk1977 Exp $

 #

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # If SQLITE_ENABLE_FTS2 is not defined, omit this file.

 ifcapable !fts2 {

   finish_test

   return

 }

 #---------------------------------------------------------------------

 # These tests, fts2o-1.*, test that ticket #2429 is fixed.

 #

 db eval {

   CREATE VIRTUAL TABLE t1 USING fts2(a, b, c);

   INSERT INTO t1(a, b, c) VALUES('one three four', 'one four', 'one four two');

 }

 do_test fts2o-1.1 {

   execsql {

     SELECT rowid, snippet(t1) FROM t1 WHERE c MATCH 'four';

   }

 } {1 {one <b>four</b> two}}

 do_test fts2o-1.2 {

   execsql {

     SELECT rowid, snippet(t1) FROM t1 WHERE b MATCH 'four';

   }

 } {1 {one <b>four</b>}}

 do_test fts2o-1.3 {

   execsql {

     SELECT rowid, snippet(t1) FROM t1 WHERE a MATCH 'four';

   }

 } {1 {one three <b>four</b>}}

 #---------------------------------------------------------------------

 # Test that it is possible to rename an fts2 table.

 #

 do_test fts2o-2.1 {

   execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}

 } {t1 t1_content t1_segments t1_segdir}

 do_test fts2o-2.2 {

   execsql { ALTER TABLE t1 RENAME to fts_t1; }

 } {}

 do_test fts2o-2.3 {

   execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }

 } {1 {one three <b>four</b>}}

 do_test fts2o-2.4 {

   execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}

 } {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir}

 # See what happens when renaming the fts2 table fails.

 #

 do_test fts2o-2.5 {

   catchsql {

     CREATE TABLE t1_segdir(a, b, c);

     ALTER TABLE fts_t1 RENAME to t1;

   }

 } {1 {SQL logic error or missing database}}

 do_test fts2o-2.6 {

   execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }

 } {1 {one three <b>four</b>}}

 do_test fts2o-2.7 {

   execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}

 } {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}

 # See what happens when renaming the fts2 table fails inside a transaction.

 #

 do_test fts2o-2.8 {

   execsql {

     BEGIN;

     INSERT INTO fts_t1(a, b, c) VALUES('one two three', 'one four', 'one two');

   }

 } {}

 do_test fts2o-2.9 {

   catchsql {

     ALTER TABLE fts_t1 RENAME to t1;

   }

 } {1 {SQL logic error or missing database}}

 do_test fts2o-2.10 {

   execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }

 } {1 {one three <b>four</b>}}

 do_test fts2o-2.11 {

   execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}

 } {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}

 do_test fts2o-2.12 {

   execsql COMMIT

   execsql {SELECT a FROM fts_t1}

 } {{one three four} {one two three}}

 do_test fts2o-2.12 {

   execsql { SELECT a, b, c FROM fts_t1 WHERE c MATCH 'four'; }

 } {{one three four} {one four} {one four two}}

 #-------------------------------------------------------------------

 # Close, delete and reopen the database. The following test should 

 # be run on an initially empty db.

 #

 db close

 file delete -force test.db test.db-journal

 sqlite3 db test.db

 do_test fts2o-3.1 {

   execsql {

     CREATE VIRTUAL TABLE t1 USING fts2(a, b, c);

     INSERT INTO t1(a, b, c) VALUES('one three four', 'one four', 'one two');

     SELECT a, b, c FROM t1 WHERE c MATCH 'two';

   }

 } {{one three four} {one four} {one two}}

 # This test was crashing at one point.

 #

 do_test fts2o-3.2 {

   execsql {

     SELECT a, b, c FROM t1 WHERE c MATCH 'two';

     CREATE TABLE t3(a, b, c);

     SELECT a, b, c FROM t1 WHERE  c  MATCH 'two';

   }

 } {{one three four} {one four} {one two} {one three four} {one four} {one two}}

 #---------------------------------------------------------------------

 # Test that it is possible to rename an fts2 table in an attached 

 # database.

 #

 file delete -force test2.db test2.db-journal

 do_test fts2o-3.1 {

   execsql {

     ATTACH 'test2.db' AS aux;

     CREATE VIRTUAL TABLE aux.t1 USING fts2(a, b, c);

     INSERT INTO aux.t1(a, b, c) VALUES(

       'neung song sahm', 'neung see', 'neung see song'

     );

   }

 } {}

 do_test fts2o-3.2 {

   execsql { SELECT a, b, c FROM aux.t1 WHERE a MATCH 'song'; }

 } {{neung song sahm} {neung see} {neung see song}}

 do_test fts2o-3.3 {

   execsql { SELECT a, b, c FROM t1 WHERE c MATCH 'two'; }

 } {{one three four} {one four} {one two}}

 do_test fts2o-3.4 {

   execsql { ALTER TABLE aux.t1 RENAME TO t2 }

 } {}

 do_test fts2o-3.2 {

   execsql { SELECT a, b, c FROM t2 WHERE a MATCH 'song'; }

 } {{neung song sahm} {neung see} {neung see song}}

 do_test fts2o-3.3 {

   execsql { SELECT a, b, c FROM t1 WHERE c MATCH 'two'; }

 } {{one three four} {one four} {one two}}

 finish_test