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+# 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
+}
+
+ifcapable !utf16 {
+  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