| # 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 |