# 2005 November 2
#
# 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 CHECK constraints
#
# $Id: check.test,v 1.13 2009/06/05 17:09:12 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix check
# Only run these tests if the build includes support for CHECK constraints
ifcapable !check {
finish_test
return
}
do_test check-1.1 {
execsql {
CREATE TABLE t1(
x INTEGER CHECK( x<5 ),
y REAL CHECK( y>x )
);
}
} {}
do_test check-1.2 {
execsql {
INSERT INTO t1 VALUES(3,4);
SELECT * FROM t1;
}
} {3 4.0}
do_test check-1.3 {
catchsql {
INSERT INTO t1 VALUES(6,7);
}
} {1 {CHECK constraint failed: t1}}
do_test check-1.4 {
execsql {
SELECT * FROM t1;
}
} {3 4.0}
do_test check-1.5 {
catchsql {
INSERT INTO t1 VALUES(4,3);
}
} {1 {CHECK constraint failed: t1}}
do_test check-1.6 {
execsql {
SELECT * FROM t1;
}
} {3 4.0}
do_test check-1.7 {
catchsql {
INSERT INTO t1 VALUES(NULL,6);
}
} {0 {}}
do_test check-1.8 {
execsql {
SELECT * FROM t1;
}
} {3 4.0 {} 6.0}
do_test check-1.9 {
catchsql {
INSERT INTO t1 VALUES(2,NULL);
}
} {0 {}}
do_test check-1.10 {
execsql {
SELECT * FROM t1;
}
} {3 4.0 {} 6.0 2 {}}
do_test check-1.11 {
execsql {
DELETE FROM t1 WHERE x IS NULL OR x!=3;
UPDATE t1 SET x=2 WHERE x==3;
SELECT * FROM t1;
}
} {2 4.0}
do_test check-1.12 {
catchsql {
UPDATE t1 SET x=7 WHERE x==2
}
} {1 {CHECK constraint failed: t1}}
do_test check-1.13 {
execsql {
SELECT * FROM t1;
}
} {2 4.0}
do_test check-1.14 {
catchsql {
UPDATE t1 SET x=5 WHERE x==2
}
} {1 {CHECK constraint failed: t1}}
do_test check-1.15 {
execsql {
SELECT * FROM t1;
}
} {2 4.0}
do_test check-1.16 {
catchsql {
UPDATE t1 SET x=4, y=11 WHERE x==2
}
} {0 {}}
do_test check-1.17 {
execsql {
SELECT * FROM t1;
}
} {4 11.0}
do_test check-2.1 {
execsql {
PRAGMA writable_schema = 1;
CREATE TABLE t2(
x INTEGER CONSTRAINT one CHECK( typeof(coalesce(x,0))=="integer" ),
y REAL CONSTRAINT two CHECK( typeof(coalesce(y,0.1))=='real' ),
z TEXT CONSTRAINT three CHECK( typeof(coalesce(z,''))=='text' )
);
PRAGMA writable_schema = 0;
}
} {}
do_test check-2.2 {
execsql {
INSERT INTO t2 VALUES(1,2.2,'three');
SELECT * FROM t2;
}
} {1 2.2 three}
db close
sqlite3 db test.db
do_test check-2.3 {
execsql {
INSERT INTO t2 VALUES(NULL, NULL, NULL);
SELECT * FROM t2;
}
} {1 2.2 three {} {} {}}
do_test check-2.4 {
catchsql {
INSERT INTO t2 VALUES(1.1, NULL, NULL);
}
} {1 {CHECK constraint failed: one}}
do_test check-2.5 {
catchsql {
INSERT INTO t2 VALUES(NULL, 5, NULL);
}
} {1 {CHECK constraint failed: two}}
do_test check-2.6 {
catchsql {
INSERT INTO t2 VALUES(NULL, NULL, 3.14159);
}
} {1 {CHECK constraint failed: three}}
# Undocumented behavior: The CONSTRAINT name clause can follow a constraint.
# Such a clause is ignored. But the parser must accept it for backwards
# compatibility.
#
do_test check-2.10 {
execsql {
CREATE TABLE t2b(
x INTEGER CHECK( typeof(coalesce(x,0))=='integer' ) CONSTRAINT one,
y TEXT PRIMARY KEY constraint two,
z INTEGER,
UNIQUE(x,z) constraint three
);
}
} {}
do_test check-2.11 {
catchsql {
INSERT INTO t2b VALUES('xyzzy','hi',5);
}
} {1 {CHECK constraint failed: t2b}}
do_test check-2.12 {
execsql {
CREATE TABLE t2c(
x INTEGER CONSTRAINT x_one CONSTRAINT x_two
CHECK( typeof(coalesce(x,0))=='integer' )
CONSTRAINT x_two CONSTRAINT x_three,
y INTEGER, z INTEGER,
CONSTRAINT u_one UNIQUE(x,y,z) CONSTRAINT u_two
);
}
} {}
do_test check-2.13 {
catchsql {
INSERT INTO t2c VALUES('xyzzy',7,8);
}
} {1 {CHECK constraint failed: x_two}}
do_test check-2.cleanup {
execsql {
DROP TABLE IF EXISTS t2b;
DROP TABLE IF EXISTS t2c;
}
} {}
ifcapable subquery {
do_test check-3.1 {
catchsql {
CREATE TABLE t3(
x, y, z,
CHECK( x<(SELECT min(x) FROM t1) )
);
}
} {1 {subqueries prohibited in CHECK constraints}}
}
do_test check-3.2 {
execsql {
SELECT name FROM sqlite_master ORDER BY name
}
} {t1 t2}
do_test check-3.3 {
catchsql {
CREATE TABLE t3(
x, y, z,
CHECK( q<x )
);
}
} {1 {no such column: q}}
do_test check-3.4 {
execsql {
SELECT name FROM sqlite_master ORDER BY name
}
} {t1 t2}
do_test check-3.5 {
catchsql {
CREATE TABLE t3(
x, y, z,
CHECK( t2.x<x )
);
}
} {1 {no such column: t2.x}}
do_test check-3.6 {
execsql {
SELECT name FROM sqlite_master ORDER BY name
}
} {t1 t2}
do_test check-3.7 {
catchsql {
CREATE TABLE t3(
x, y, z,
CHECK( t3.x<25 )
);
}
} {0 {}}
do_test check-3.8 {
execsql {
INSERT INTO t3 VALUES(1,2,3);
SELECT * FROM t3;
}
} {1 2 3}
do_test check-3.9 {
catchsql {
INSERT INTO t3 VALUES(111,222,333);
}
} {1 {CHECK constraint failed: t3}}
do_test check-4.1 {
execsql {
CREATE TABLE t4(x, y,
CHECK (
x+y==11
OR x*y==12
OR x/y BETWEEN 5 AND 8
OR -x==y+10
)
);
}
} {}
do_test check-4.2 {
execsql {
INSERT INTO t4 VALUES(1,10);
SELECT * FROM t4
}
} {1 10}
do_test check-4.3 {
execsql {
UPDATE t4 SET x=4, y=3;
SELECT * FROM t4
}
} {4 3}
do_test check-4.4 {
execsql {
UPDATE t4 SET x=12, y=2;
SELECT * FROM t4
}
} {12 2}
do_test check-4.5 {
execsql {
UPDATE t4 SET x=12, y=-22;
SELECT * FROM t4
}
} {12 -22}
do_test check-4.6 {
catchsql {
UPDATE t4 SET x=0, y=1;
}
} {1 {CHECK constraint failed: t4}}
do_test check-4.7 {
execsql {
SELECT * FROM t4;
}
} {12 -22}
do_test check-4.8 {
execsql {
PRAGMA ignore_check_constraints=ON;
UPDATE t4 SET x=0, y=1;
SELECT * FROM t4;
PRAGMA integrity_check;
}
} {0 1 ok}
do_execsql_test check-4.8.1 {
PRAGMA ignore_check_constraints=OFF;
PRAGMA integrity_check;
} {{CHECK constraint failed in t4}}
do_test check-4.9 {
catchsql {
UPDATE t4 SET x=0, y=2;
}
} {1 {CHECK constraint failed: t4}}
ifcapable vacuum {
do_test check_4.10 {
catchsql {
VACUUM
}
} {0 {}}
}
do_test check-5.1 {
catchsql {
CREATE TABLE t5(x, y,
CHECK( x*y<:abc )
);
}
} {1 {parameters prohibited in CHECK constraints}}
do_test check-5.2 {
catchsql {
CREATE TABLE t5(x, y,
CHECK( x*y<? )
);
}
} {1 {parameters prohibited in CHECK constraints}}
ifcapable conflict {
do_test check-6.1 {
execsql {SELECT * FROM t1}
} {4 11.0}
do_test check-6.2 {
execsql {
UPDATE OR IGNORE t1 SET x=5;
SELECT * FROM t1;
}
} {4 11.0}
do_test check-6.3 {
execsql {
INSERT OR IGNORE INTO t1 VALUES(5,4.0);
SELECT * FROM t1;
}
} {4 11.0}
do_test check-6.4 {
execsql {
INSERT OR IGNORE INTO t1 VALUES(2,20.0);
SELECT * FROM t1;
}
} {4 11.0 2 20.0}
do_test check-6.5 {
catchsql {
UPDATE OR FAIL t1 SET x=7-x, y=y+1;
}
} {1 {CHECK constraint failed: t1}}
do_test check-6.6 {
execsql {
SELECT * FROM t1;
}
} {3 12.0 2 20.0}
do_test check-6.7 {
catchsql {
BEGIN;
INSERT INTO t1 VALUES(1,30.0);
INSERT OR ROLLBACK INTO t1 VALUES(8,40.0);
}
} {1 {CHECK constraint failed: t1}}
do_test check-6.8 {
catchsql {
COMMIT;
}
} {1 {cannot commit - no transaction is active}}
do_test check-6.9 {
execsql {
SELECT * FROM t1
}
} {3 12.0 2 20.0}
do_test check-6.11 {
execsql {SELECT * FROM t1}
} {3 12.0 2 20.0}
do_test check-6.12 {
catchsql {
REPLACE INTO t1 VALUES(6,7);
}
} {1 {CHECK constraint failed: t1}}
do_test check-6.13 {
execsql {SELECT * FROM t1}
} {3 12.0 2 20.0}
do_test check-6.14 {
catchsql {
INSERT OR IGNORE INTO t1 VALUES(6,7);
}
} {0 {}}
do_test check-6.15 {
execsql {SELECT * FROM t1}
} {3 12.0 2 20.0}
}
#--------------------------------------------------------------------------
# If a connection opens a database that contains a CHECK constraint that
# uses an unknown UDF, the schema should not be considered malformed.
# Attempting to modify the table should fail (since the CHECK constraint
# cannot be tested).
#
reset_db
proc myfunc {x} {expr $x < 10}
db func myfunc myfunc
do_execsql_test 7.1 { CREATE TABLE t6(a CHECK (myfunc(a))) }
do_execsql_test 7.2 { INSERT INTO t6 VALUES(9) }
do_catchsql_test 7.3 { INSERT INTO t6 VALUES(11) } \
{1 {CHECK constraint failed: t6}}
do_test 7.4 {
sqlite3 db2 test.db
execsql { SELECT * FROM t6 } db2
} {9}
do_test 7.5 {
catchsql { INSERT INTO t6 VALUES(8) } db2
} {1 {unknown function: myfunc()}}
do_test 7.6 {
catchsql { CREATE TABLE t7(a CHECK (myfunc(a))) } db2
} {1 {no such function: myfunc}}
do_test 7.7 {
db2 func myfunc myfunc
execsql { INSERT INTO t6 VALUES(8) } db2
} {}
do_test 7.8 {
db2 func myfunc myfunc
catchsql { INSERT INTO t6 VALUES(12) } db2
} {1 {CHECK constraint failed: t6}}
# 2013-08-02: Silently ignore database name qualifiers in CHECK constraints.
#
do_execsql_test 8.1 {
CREATE TABLE t810(a, CHECK( main.t810.a>0 ));
CREATE TABLE t811(b, CHECK( xyzzy.t811.b BETWEEN 5 AND 10 ));
} {}
# Make sure check constraints involving the ROWID are not ignored
#
do_execsql_test 9.1 {
CREATE TABLE t1(
a INTEGER PRIMARY KEY,
b INTEGER NOT NULL CONSTRAINT 'b-check' CHECK( b>a ),
c INTEGER NOT NULL CONSTRAINT 'c-check' CHECK( c>rowid*2 ),
d INTEGER NOT NULL CONSTRAINT 'd-check' CHECK( d BETWEEN b AND c )
);
INSERT INTO t1(a,b,c,d) VALUES(1,2,4,3),(2,4,6,5),(3,10,30,20);
} {}
do_catchsql_test 9.2 {
UPDATE t1 SET b=0 WHERE a=1;
} {1 {CHECK constraint failed: b-check}}
do_catchsql_test 9.3 {
UPDATE t1 SET c=a*2 WHERE a=1;
} {1 {CHECK constraint failed: c-check}}
# Integrity check on a VIEW with columns.
#
db close
db2 close
forcedelete test.db
sqlite3 db test.db
do_execsql_test 10.1 {
CREATE TABLE t1(x);
CREATE VIEW v1(y) AS SELECT x FROM t1;
PRAGMA integrity_check;
} {ok}
finish_test