ddd1fc7283
constraint while parsing the schema of an existing database. FossilOrigin-Name: cda790280a52d65f98a45bacb9123367b159ac7c
456 lines
8.8 KiB
Plaintext
456 lines
8.8 KiB
Plaintext
# 2005 November 2
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing CHECK constraints
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#
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# $Id: check.test,v 1.13 2009/06/05 17:09:12 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set ::testprefix check
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# Only run these tests if the build includes support for CHECK constraints
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ifcapable !check {
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finish_test
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return
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}
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do_test check-1.1 {
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execsql {
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CREATE TABLE t1(
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x INTEGER CHECK( x<5 ),
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y REAL CHECK( y>x )
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);
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}
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} {}
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do_test check-1.2 {
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execsql {
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INSERT INTO t1 VALUES(3,4);
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SELECT * FROM t1;
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}
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} {3 4.0}
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do_test check-1.3 {
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catchsql {
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INSERT INTO t1 VALUES(6,7);
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}
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} {1 {constraint failed}}
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do_test check-1.4 {
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execsql {
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SELECT * FROM t1;
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}
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} {3 4.0}
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do_test check-1.5 {
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catchsql {
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INSERT INTO t1 VALUES(4,3);
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}
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} {1 {constraint failed}}
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do_test check-1.6 {
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execsql {
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SELECT * FROM t1;
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}
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} {3 4.0}
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do_test check-1.7 {
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catchsql {
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INSERT INTO t1 VALUES(NULL,6);
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}
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} {0 {}}
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do_test check-1.8 {
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execsql {
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SELECT * FROM t1;
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}
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} {3 4.0 {} 6.0}
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do_test check-1.9 {
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catchsql {
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INSERT INTO t1 VALUES(2,NULL);
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}
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} {0 {}}
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do_test check-1.10 {
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execsql {
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SELECT * FROM t1;
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}
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} {3 4.0 {} 6.0 2 {}}
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do_test check-1.11 {
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execsql {
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DELETE FROM t1 WHERE x IS NULL OR x!=3;
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UPDATE t1 SET x=2 WHERE x==3;
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SELECT * FROM t1;
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}
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} {2 4.0}
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do_test check-1.12 {
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catchsql {
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UPDATE t1 SET x=7 WHERE x==2
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}
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} {1 {constraint failed}}
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do_test check-1.13 {
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execsql {
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SELECT * FROM t1;
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}
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} {2 4.0}
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do_test check-1.14 {
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catchsql {
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UPDATE t1 SET x=5 WHERE x==2
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}
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} {1 {constraint failed}}
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do_test check-1.15 {
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execsql {
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SELECT * FROM t1;
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}
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} {2 4.0}
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do_test check-1.16 {
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catchsql {
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UPDATE t1 SET x=4, y=11 WHERE x==2
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}
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} {0 {}}
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do_test check-1.17 {
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execsql {
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SELECT * FROM t1;
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}
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} {4 11.0}
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do_test check-2.1 {
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execsql {
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CREATE TABLE t2(
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x INTEGER CONSTRAINT one CHECK( typeof(coalesce(x,0))=="integer" ),
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y REAL CONSTRAINT two CHECK( typeof(coalesce(y,0.1))=='real' ),
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z TEXT CONSTRAINT three CHECK( typeof(coalesce(z,''))=='text' )
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);
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}
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} {}
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do_test check-2.2 {
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execsql {
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INSERT INTO t2 VALUES(1,2.2,'three');
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SELECT * FROM t2;
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}
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} {1 2.2 three}
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db close
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sqlite3 db test.db
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do_test check-2.3 {
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execsql {
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INSERT INTO t2 VALUES(NULL, NULL, NULL);
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SELECT * FROM t2;
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}
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} {1 2.2 three {} {} {}}
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do_test check-2.4 {
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catchsql {
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INSERT INTO t2 VALUES(1.1, NULL, NULL);
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}
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} {1 {constraint one failed}}
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do_test check-2.5 {
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catchsql {
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INSERT INTO t2 VALUES(NULL, 5, NULL);
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}
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} {1 {constraint two failed}}
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do_test check-2.6 {
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catchsql {
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INSERT INTO t2 VALUES(NULL, NULL, 3.14159);
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}
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} {1 {constraint three failed}}
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# Undocumented behavior: The CONSTRAINT name clause can follow a constraint.
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# Such a clause is ignored. But the parser must accept it for backwards
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# compatibility.
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#
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do_test check-2.10 {
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execsql {
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CREATE TABLE t2b(
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x INTEGER CHECK( typeof(coalesce(x,0))=='integer' ) CONSTRAINT one,
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y TEXT PRIMARY KEY constraint two,
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z INTEGER,
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UNIQUE(x,z) constraint three
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);
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}
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} {}
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do_test check-2.11 {
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catchsql {
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INSERT INTO t2b VALUES('xyzzy','hi',5);
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}
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} {1 {constraint failed}}
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do_test check-2.12 {
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execsql {
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CREATE TABLE t2c(
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x INTEGER CONSTRAINT x_one CONSTRAINT x_two
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CHECK( typeof(coalesce(x,0))=='integer' )
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CONSTRAINT x_two CONSTRAINT x_three,
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y INTEGER, z INTEGER,
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CONSTRAINT u_one UNIQUE(x,y,z) CONSTRAINT u_two
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);
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}
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} {}
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do_test check-2.13 {
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catchsql {
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INSERT INTO t2c VALUES('xyzzy',7,8);
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}
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} {1 {constraint x_two failed}}
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do_test check-2.cleanup {
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execsql {
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DROP TABLE IF EXISTS t2b;
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DROP TABLE IF EXISTS t2c;
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}
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} {}
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ifcapable subquery {
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do_test check-3.1 {
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catchsql {
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CREATE TABLE t3(
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x, y, z,
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CHECK( x<(SELECT min(x) FROM t1) )
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);
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}
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} {1 {subqueries prohibited in CHECK constraints}}
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}
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do_test check-3.2 {
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execsql {
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SELECT name FROM sqlite_master ORDER BY name
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}
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} {t1 t2}
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do_test check-3.3 {
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catchsql {
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CREATE TABLE t3(
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x, y, z,
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CHECK( q<x )
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);
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}
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} {1 {no such column: q}}
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do_test check-3.4 {
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execsql {
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SELECT name FROM sqlite_master ORDER BY name
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}
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} {t1 t2}
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do_test check-3.5 {
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catchsql {
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CREATE TABLE t3(
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x, y, z,
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CHECK( t2.x<x )
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);
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}
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} {1 {no such column: t2.x}}
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do_test check-3.6 {
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execsql {
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SELECT name FROM sqlite_master ORDER BY name
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}
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} {t1 t2}
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do_test check-3.7 {
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catchsql {
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CREATE TABLE t3(
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x, y, z,
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CHECK( t3.x<25 )
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);
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}
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} {0 {}}
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do_test check-3.8 {
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execsql {
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INSERT INTO t3 VALUES(1,2,3);
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SELECT * FROM t3;
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}
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} {1 2 3}
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do_test check-3.9 {
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catchsql {
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INSERT INTO t3 VALUES(111,222,333);
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}
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} {1 {constraint failed}}
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do_test check-4.1 {
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execsql {
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CREATE TABLE t4(x, y,
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CHECK (
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x+y==11
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OR x*y==12
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OR x/y BETWEEN 5 AND 8
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OR -x==y+10
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)
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);
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}
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} {}
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do_test check-4.2 {
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execsql {
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INSERT INTO t4 VALUES(1,10);
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SELECT * FROM t4
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}
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} {1 10}
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do_test check-4.3 {
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execsql {
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UPDATE t4 SET x=4, y=3;
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SELECT * FROM t4
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}
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} {4 3}
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do_test check-4.4 {
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execsql {
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UPDATE t4 SET x=12, y=2;
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SELECT * FROM t4
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}
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} {12 2}
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do_test check-4.5 {
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execsql {
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UPDATE t4 SET x=12, y=-22;
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SELECT * FROM t4
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}
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} {12 -22}
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do_test check-4.6 {
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catchsql {
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UPDATE t4 SET x=0, y=1;
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}
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} {1 {constraint failed}}
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do_test check-4.7 {
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execsql {
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SELECT * FROM t4;
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}
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} {12 -22}
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do_test check-4.8 {
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execsql {
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PRAGMA ignore_check_constraints=ON;
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UPDATE t4 SET x=0, y=1;
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SELECT * FROM t4;
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}
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} {0 1}
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do_test check-4.9 {
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catchsql {
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PRAGMA ignore_check_constraints=OFF;
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UPDATE t4 SET x=0, y=2;
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}
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} {1 {constraint failed}}
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ifcapable vacuum {
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do_test check_4.10 {
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catchsql {
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VACUUM
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}
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} {0 {}}
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}
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do_test check-5.1 {
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catchsql {
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CREATE TABLE t5(x, y,
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CHECK( x*y<:abc )
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);
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}
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} {1 {parameters prohibited in CHECK constraints}}
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do_test check-5.2 {
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catchsql {
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CREATE TABLE t5(x, y,
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CHECK( x*y<? )
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);
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}
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} {1 {parameters prohibited in CHECK constraints}}
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ifcapable conflict {
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do_test check-6.1 {
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execsql {SELECT * FROM t1}
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} {4 11.0}
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do_test check-6.2 {
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execsql {
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UPDATE OR IGNORE t1 SET x=5;
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SELECT * FROM t1;
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}
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} {4 11.0}
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do_test check-6.3 {
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execsql {
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INSERT OR IGNORE INTO t1 VALUES(5,4.0);
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SELECT * FROM t1;
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}
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} {4 11.0}
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do_test check-6.4 {
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execsql {
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INSERT OR IGNORE INTO t1 VALUES(2,20.0);
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SELECT * FROM t1;
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}
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} {4 11.0 2 20.0}
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do_test check-6.5 {
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catchsql {
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UPDATE OR FAIL t1 SET x=7-x, y=y+1;
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}
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} {1 {constraint failed}}
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do_test check-6.6 {
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execsql {
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SELECT * FROM t1;
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}
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} {3 12.0 2 20.0}
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do_test check-6.7 {
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catchsql {
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BEGIN;
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INSERT INTO t1 VALUES(1,30.0);
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INSERT OR ROLLBACK INTO t1 VALUES(8,40.0);
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}
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} {1 {constraint failed}}
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do_test check-6.8 {
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catchsql {
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COMMIT;
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}
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} {1 {cannot commit - no transaction is active}}
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do_test check-6.9 {
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execsql {
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SELECT * FROM t1
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}
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} {3 12.0 2 20.0}
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do_test check-6.11 {
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execsql {SELECT * FROM t1}
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} {3 12.0 2 20.0}
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do_test check-6.12 {
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catchsql {
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REPLACE INTO t1 VALUES(6,7);
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}
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} {1 {constraint failed}}
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do_test check-6.13 {
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execsql {SELECT * FROM t1}
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} {3 12.0 2 20.0}
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do_test check-6.14 {
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catchsql {
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INSERT OR IGNORE INTO t1 VALUES(6,7);
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}
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} {0 {}}
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do_test check-6.15 {
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execsql {SELECT * FROM t1}
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} {3 12.0 2 20.0}
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}
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#--------------------------------------------------------------------------
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# If a connection opens a database that contains a CHECK constraint that
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# uses an unknown UDF, the schema should not be considered malformed.
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# Attempting to modify the table should fail (since the CHECK constraint
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# cannot be tested).
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#
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reset_db
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proc myfunc {x} {expr $x < 10}
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db func myfunc myfunc
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do_execsql_test 7.1 { CREATE TABLE t6(a CHECK (myfunc(a))) }
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do_execsql_test 7.2 { INSERT INTO t6 VALUES(9) }
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do_catchsql_test 7.3 { INSERT INTO t6 VALUES(11) } {1 {constraint failed}}
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do_test 7.4 {
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sqlite3 db2 test.db
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execsql { SELECT * FROM t6 } db2
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} {9}
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do_test 7.5 {
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catchsql { INSERT INTO t6 VALUES(8) } db2
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} {1 {unknown function: myfunc()}}
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do_test 7.6 {
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catchsql { CREATE TABLE t7(a CHECK (myfunc(a))) } db2
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} {1 {no such function: myfunc}}
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do_test 7.7 {
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db2 func myfunc myfunc
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execsql { INSERT INTO t6 VALUES(8) } db2
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} {}
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do_test 7.8 {
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db2 func myfunc myfunc
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catchsql { INSERT INTO t6 VALUES(12) } db2
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} {1 {constraint failed}}
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finish_test
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