# 2007 January 17

 #

 # The author disclaims copyright to this source code.

 #

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

 # This file implements regression tests for SQLite fts3 library.  The

 # focus here is testing handling of UPDATE when using UTF-16-encoded

 # databases.

 #

 # $Id: fts3ai.test,v 1.1 2007/08/20 17:38:42 shess Exp $

 #

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # If SQLITE_ENABLE_FTS3 is defined, omit this file.

 ifcapable !fts3 {

   finish_test

   return

 }

 # Return the UTF-16 representation of the supplied UTF-8 string $str.

 # If $nt is true, append two 0x00 bytes as a nul terminator.

 # NOTE(shess) Copied from capi3.test.

 proc utf16 {str {nt 1}} {

   set r [encoding convertto unicode $str]

   if {$nt} {

     append r "\x00\x00"

   }

   return $r

 }

 db eval {

   PRAGMA encoding = "UTF-16le";

   CREATE VIRTUAL TABLE t1 USING fts3(content);

 }

 do_test fts3ai-1.0 {

   execsql {PRAGMA encoding}

 } {UTF-16le}

 do_test fts3ai-1.1 {

   execsql {INSERT INTO t1 (rowid, content) VALUES(1, 'one')}

   execsql {SELECT content FROM t1 WHERE rowid = 1}

 } {one}

 do_test fts3ai-1.2 {

   set sql "INSERT INTO t1 (rowid, content) VALUES(2, 'two')"

   set STMT [sqlite3_prepare $DB $sql -1 TAIL]

   sqlite3_step $STMT

   sqlite3_finalize $STMT

   execsql {SELECT content FROM t1 WHERE rowid = 2}

 } {two}

 do_test fts3ai-1.3 {

   set sql "INSERT INTO t1 (rowid, content) VALUES(3, 'three')"

   set STMT [sqlite3_prepare $DB $sql -1 TAIL]

   sqlite3_step $STMT

   sqlite3_finalize $STMT

   set sql "UPDATE t1 SET content = 'trois' WHERE rowid = 3"

   set STMT [sqlite3_prepare $DB $sql -1 TAIL]

   sqlite3_step $STMT

   sqlite3_finalize $STMT

   execsql {SELECT content FROM t1 WHERE rowid = 3}

 } {trois}

 do_test fts3ai-1.4 {

   set sql16 [utf16 {INSERT INTO t1 (rowid, content) VALUES(4, 'four')}]

   set STMT [sqlite3_prepare16 $DB $sql16 -1 TAIL]

   sqlite3_step $STMT

   sqlite3_finalize $STMT

   execsql {SELECT content FROM t1 WHERE rowid = 4}

 } {four}

 do_test fts3ai-1.5 {

   set sql16 [utf16 {INSERT INTO t1 (rowid, content) VALUES(5, 'five')}]

   set STMT [sqlite3_prepare16 $DB $sql16 -1 TAIL]

   sqlite3_step $STMT

   sqlite3_finalize $STMT

   set sql "UPDATE t1 SET content = 'cinq' WHERE rowid = 5"

   set STMT [sqlite3_prepare $DB $sql -1 TAIL]

   sqlite3_step $STMT

   sqlite3_finalize $STMT

   execsql {SELECT content FROM t1 WHERE rowid = 5}

 } {cinq}

 finish_test