/trunk/test/where5.test |
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# 2007 June 8 |
# |
# 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 NULL comparisons in the WHERE clause. |
# See ticket #2404. |
# |
# $Id: where5.test,v 1.2 2007/06/08 08:43:10 drh Exp $ |
|
set testdir [file dirname $argv0] |
source $testdir/tester.tcl |
|
# Build some test data |
# |
do_test where5-1.0 { |
execsql { |
CREATE TABLE t1(x TEXT); |
CREATE TABLE t2(x INTEGER); |
CREATE TABLE t3(x INTEGER PRIMARY KEY); |
INSERT INTO t1 VALUES(-1); |
INSERT INTO t1 VALUES(0); |
INSERT INTO t1 VALUES(1); |
INSERT INTO t2 SELECT * FROM t1; |
INSERT INTO t3 SELECT * FROM t2; |
} |
execsql { |
SELECT * FROM t1 WHERE x<0 |
} |
} {-1} |
do_test where5-1.1 { |
execsql { |
SELECT * FROM t1 WHERE x<=0 |
} |
} {-1 0} |
do_test where5-1.2 { |
execsql { |
SELECT * FROM t1 WHERE x=0 |
} |
} {0} |
do_test where5-1.3 { |
execsql { |
SELECT * FROM t1 WHERE x>=0 |
} |
} {0 1} |
do_test where5-1.4 { |
execsql { |
SELECT * FROM t1 WHERE x>0 |
} |
} {1} |
do_test where5-1.5 { |
execsql { |
SELECT * FROM t1 WHERE x<>0 |
} |
} {-1 1} |
do_test where5-1.6 { |
execsql { |
SELECT * FROM t1 WHERE x<NULL |
} |
} {} |
do_test where5-1.7 { |
execsql { |
SELECT * FROM t1 WHERE x<=NULL |
} |
} {} |
do_test where5-1.8 { |
execsql { |
SELECT * FROM t1 WHERE x=NULL |
} |
} {} |
do_test where5-1.9 { |
execsql { |
SELECT * FROM t1 WHERE x>=NULL |
} |
} {} |
do_test where5-1.10 { |
execsql { |
SELECT * FROM t1 WHERE x>NULL |
} |
} {} |
do_test where5-1.11 { |
execsql { |
SELECT * FROM t1 WHERE x!=NULL |
} |
} {} |
do_test where5-1.12 { |
execsql { |
SELECT * FROM t1 WHERE x IS NULL |
} |
} {} |
do_test where5-1.13 { |
execsql { |
SELECT * FROM t1 WHERE x IS NOT NULL |
} |
} {-1 0 1} |
|
|
do_test where5-2.0 { |
execsql { |
SELECT * FROM t2 WHERE x<0 |
} |
} {-1} |
do_test where5-2.1 { |
execsql { |
SELECT * FROM t2 WHERE x<=0 |
} |
} {-1 0} |
do_test where5-2.2 { |
execsql { |
SELECT * FROM t2 WHERE x=0 |
} |
} {0} |
do_test where5-2.3 { |
execsql { |
SELECT * FROM t2 WHERE x>=0 |
} |
} {0 1} |
do_test where5-2.4 { |
execsql { |
SELECT * FROM t2 WHERE x>0 |
} |
} {1} |
do_test where5-2.5 { |
execsql { |
SELECT * FROM t2 WHERE x<>0 |
} |
} {-1 1} |
do_test where5-2.6 { |
execsql { |
SELECT * FROM t2 WHERE x<NULL |
} |
} {} |
do_test where5-2.7 { |
execsql { |
SELECT * FROM t2 WHERE x<=NULL |
} |
} {} |
do_test where5-2.8 { |
execsql { |
SELECT * FROM t2 WHERE x=NULL |
} |
} {} |
do_test where5-2.9 { |
execsql { |
SELECT * FROM t2 WHERE x>=NULL |
} |
} {} |
do_test where5-2.10 { |
execsql { |
SELECT * FROM t2 WHERE x>NULL |
} |
} {} |
do_test where5-2.11 { |
execsql { |
SELECT * FROM t2 WHERE x!=NULL |
} |
} {} |
do_test where5-2.12 { |
execsql { |
SELECT * FROM t2 WHERE x IS NULL |
} |
} {} |
do_test where5-2.13 { |
execsql { |
SELECT * FROM t2 WHERE x IS NOT NULL |
} |
} {-1 0 1} |
|
|
do_test where5-3.0 { |
execsql { |
SELECT * FROM t3 WHERE x<0 |
} |
} {-1} |
do_test where5-3.1 { |
execsql { |
SELECT * FROM t3 WHERE x<=0 |
} |
} {-1 0} |
do_test where5-3.2 { |
execsql { |
SELECT * FROM t3 WHERE x=0 |
} |
} {0} |
do_test where5-3.3 { |
execsql { |
SELECT * FROM t3 WHERE x>=0 |
} |
} {0 1} |
do_test where5-3.4 { |
execsql { |
SELECT * FROM t3 WHERE x>0 |
} |
} {1} |
do_test where5-3.5 { |
execsql { |
SELECT * FROM t3 WHERE x<>0 |
} |
} {-1 1} |
do_test where5-3.6 { |
execsql { |
SELECT * FROM t3 WHERE x<NULL |
} |
} {} |
do_test where5-3.7 { |
execsql { |
SELECT * FROM t3 WHERE x<=NULL |
} |
} {} |
do_test where5-3.8 { |
execsql { |
SELECT * FROM t3 WHERE x=NULL |
} |
} {} |
do_test where5-3.9 { |
execsql { |
SELECT * FROM t3 WHERE x>=NULL |
} |
} {} |
do_test where5-3.10 { |
execsql { |
SELECT * FROM t3 WHERE x>NULL |
} |
} {} |
do_test where5-3.11 { |
execsql { |
SELECT * FROM t3 WHERE x!=NULL |
} |
} {} |
do_test where5-3.12 { |
execsql { |
SELECT * FROM t3 WHERE x IS NULL |
} |
} {} |
do_test where5-3.13 { |
execsql { |
SELECT * FROM t3 WHERE x IS NOT NULL |
} |
} {-1 0 1} |
|
do_test where5-4.0 { |
execsql { |
SELECT x<NULL FROM t3 |
} |
} {{} {} {}} |
do_test where5-4.1 { |
execsql { |
SELECT x<=NULL FROM t3 |
} |
} {{} {} {}} |
do_test where5-4.2 { |
execsql { |
SELECT x==NULL FROM t3 |
} |
} {{} {} {}} |
do_test where5-4.3 { |
execsql { |
SELECT x>NULL FROM t3 |
} |
} {{} {} {}} |
do_test where5-4.4 { |
execsql { |
SELECT x>=NULL FROM t3 |
} |
} {{} {} {}} |
do_test where5-4.5 { |
execsql { |
SELECT x!=NULL FROM t3 |
} |
} {{} {} {}} |
do_test where5-4.6 { |
execsql { |
SELECT x IS NULL FROM t3 |
} |
} {0 0 0} |
do_test where5-4.7 { |
execsql { |
SELECT x IS NOT NULL FROM t3 |
} |
} {1 1 1} |
|
finish_test |