sqlite/ext/fts5/test/fts5unicode.test
dan cb38809159 Add a test case to check that the fts5 unicode64 tokenizer is dealing with
codepoints greater than 65535 correctly.

FossilOrigin-Name: 9f7a6ae878cd17ff4de7c55e654406773e0ea2b9fe1c4e2a9fc2b0da84d059a4
2018-05-09 16:32:00 +00:00

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# 2014 Dec 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.
#
#***********************************************************************
#
# Tests focusing on the fts5 tokenizers
#
source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5unicode
# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
finish_test
return
}
proc tokenize_test {tn tokenizer input output} {
uplevel [list do_test $tn [subst -nocommands {
set ret {}
foreach {z s e} [sqlite3_fts5_tokenize db {$tokenizer} {$input}] {
lappend ret [set z]
}
set ret
}] [list {*}$output]]
}
foreach {tn t} {1 ascii 2 unicode61} {
tokenize_test 1.$tn.0 $t {A B C D} {a b c d}
tokenize_test 1.$tn.1 $t {May you share freely,} {may you share freely}
tokenize_test 1.$tn.2 $t {..May...you.shAre.freely} {may you share freely}
tokenize_test 1.$tn.3 $t {} {}
}
#-------------------------------------------------------------------------
# Check that "unicode61" really is the default tokenizer.
#
do_execsql_test 2.0 "
CREATE VIRTUAL TABLE t1 USING fts5(x);
CREATE VIRTUAL TABLE t2 USING fts5(x, tokenize = unicode61);
CREATE VIRTUAL TABLE t3 USING fts5(x, tokenize = ascii);
INSERT INTO t1 VALUES('\xC0\xC8\xCC');
INSERT INTO t2 VALUES('\xC0\xC8\xCC');
INSERT INTO t3 VALUES('\xC0\xC8\xCC');
"
do_execsql_test 2.1 "
SELECT 't1' FROM t1 WHERE t1 MATCH '\xE0\xE8\xEC';
SELECT 't2' FROM t2 WHERE t2 MATCH '\xE0\xE8\xEC';
SELECT 't3' FROM t3 WHERE t3 MATCH '\xE0\xE8\xEC';
" {t1 t2}
#-------------------------------------------------------------------------
# Check that codepoints that require 4 bytes to store in utf-8 (those that
# require 17 or more bits to store).
#
set A [db one {SELECT char(0x1F75E)}] ;# Type So
set B [db one {SELECT char(0x1F5FD)}] ;# Type So
set C [db one {SELECT char(0x2F802)}] ;# Type Lo
set D [db one {SELECT char(0x2F808)}] ;# Type Lo
do_execsql_test 3.0 "
CREATE VIRTUAL TABLE xyz USING fts5(x,
tokenize = \"unicode61 separators '$C' tokenchars '$A'\"
);
CREATE VIRTUAL TABLE xyz_v USING fts5vocab(xyz, row);
INSERT INTO xyz VALUES('$A$B$C$D');
"
do_execsql_test 3.1 {
SELECT * FROM xyz_v;
} [list $A 1 1 $D 1 1]
finish_test