sqlcipher/test/like3.test

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# 2015-03-06
#
# 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 file is testing the LIKE and GLOB operators and
# in particular the optimizations that occur to help those operators
# run faster and that those optimizations work correctly when there
# are both strings and blobs being tested.
#
# Ticket 05f43be8fdda9fbd948d374319b99b054140bc36 shows that the following
# SQL was not working correctly:
#
# CREATE TABLE t1(x TEXT UNIQUE COLLATE nocase);
# INSERT INTO t1(x) VALUES(x'616263');
# SELECT 'query-1', x FROM t1 WHERE x LIKE 'a%';
# SELECT 'query-2', x FROM t1 WHERE +x LIKE 'a%';
#
# This script verifies that it works right now.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_execsql_test like3-1.1 {
PRAGMA encoding=UTF8;
CREATE TABLE t1(a,b TEXT COLLATE nocase);
INSERT INTO t1(a,b)
VALUES(1,'abc'),
(2,'ABX'),
(3,'BCD'),
(4,x'616263'),
(5,x'414258'),
(6,x'424344');
CREATE INDEX t1ba ON t1(b,a);
SELECT a, b FROM t1 WHERE b LIKE 'aB%' ORDER BY +a;
} {1 abc 2 ABX 4 abc 5 ABX}
do_execsql_test like3-1.2 {
SELECT a, b FROM t1 WHERE +b LIKE 'aB%' ORDER BY +a;
} {1 abc 2 ABX 4 abc 5 ABX}
do_execsql_test like3-2.0 {
CREATE TABLE t2(a, b TEXT);
INSERT INTO t2 SELECT a, b FROM t1;
CREATE INDEX t2ba ON t2(b,a);
SELECT a, b FROM t2 WHERE b GLOB 'ab*' ORDER BY +a;
} {1 abc 4 abc}
do_execsql_test like3-2.1 {
SELECT a, b FROM t2 WHERE +b GLOB 'ab*' ORDER BY +a;
} {1 abc 4 abc}
do_execsql_test like3-2.2 {
SELECT a, b FROM t2 WHERE b>=x'6162' AND b GLOB 'ab*'
} {4 abc}
do_execsql_test like3-2.3 {
SELECT a, b FROM t2 WHERE +b>=x'6162' AND +b GLOB 'ab*'
} {4 abc}
do_execsql_test like3-2.4 {
SELECT a, b FROM t2 WHERE b GLOB 'ab*' AND b>=x'6162'
} {4 abc}
do_execsql_test like3-2.5 {
SELECT a, b FROM t2 WHERE +b GLOB 'ab*' AND +b>=x'6162'
} {4 abc}
do_execsql_test like3-3.0 {
CREATE TABLE t3(x TEXT PRIMARY KEY COLLATE nocase);
INSERT INTO t3(x) VALUES('aaa'),('abc'),('abd'),('abe'),('acz');
INSERT INTO t3(x) SELECT CAST(x AS blob) FROM t3;
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-3.1 {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-3.1ck {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-3.2 {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-3.2ck {
SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-4.0 {
CREATE TABLE t4(x TEXT COLLATE nocase);
CREATE INDEX t4x ON t4(x DESC);
INSERT INTO t4(x) SELECT x FROM t3;
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-4.1 {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-4.1ck {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x DESC;
} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
do_execsql_test like3-4.2 {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
do_execsql_test like3-4.2ck {
SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x ASC;
} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
finish_test