# 2006 October 31 (scaaarey)

#

# The author disclaims copyright to this source code.

#

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

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

# here is testing correct handling of excessively long terms.

#

# $Id: fts2h.test,v 1.1 2006/11/29 21:03:01 shess Exp $

#

set testdir [file dirname $argv0]

source $testdir/tester.tcl

# If SQLITE_ENABLE_FTS2 is defined, omit this file.

ifcapable !fts2 {

  finish_test

  return

}

# Generate a term of len copies of char.

proc bigterm {char len} {

  for {set term ""} {$len>0} {incr len -1} {

    append term $char

  }

  return $term

}

# Generate a document of bigterms based on characters from the list

# chars.

proc bigtermdoc {chars len} {

  set doc ""

  foreach char $chars {

    append doc " " [bigterm $char $len]

  }

  return $doc

}

set len 5000

set doc1 [bigtermdoc {a b c d} $len]

set doc2 [bigtermdoc {b d e f} $len]

set doc3 [bigtermdoc {a c e} $len]

set aterm [bigterm a $len]

set bterm [bigterm b $len]

set xterm [bigterm x $len]

db eval {

  CREATE VIRTUAL TABLE t1 USING fts2(content);

  INSERT INTO t1 (rowid, content) VALUES(1, $doc1);

  INSERT INTO t1 (rowid, content) VALUES(2, $doc2);

  INSERT INTO t1 (rowid, content) VALUES(3, $doc3);

}

# No hits at all.  Returns empty doclists from termSelect().

do_test fts2h-1.1 {

  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something'}

} {}

do_test fts2h-1.2 {

  execsql {SELECT rowid FROM t1 WHERE t1 MATCH $aterm}

} {1 3}

do_test fts2h-1.2 {

  execsql {SELECT rowid FROM t1 WHERE t1 MATCH $xterm}

} {}

do_test fts2h-1.3 {

  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '$aterm -$xterm'"

} {1 3}

do_test fts2h-1.4 {

  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"$aterm $bterm\"'"

} {1}

finish_test