# 2009 September 15 # # 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. # # This file implements tests for foreign keys. # set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable {!foreignkey||!trigger} { finish_test return } set testprefix fkey3 # Create a table and some data to work with. # do_test fkey3-1.1 { execsql { PRAGMA foreign_keys=ON; CREATE TABLE t1(x INTEGER PRIMARY KEY); INSERT INTO t1 VALUES(100); INSERT INTO t1 VALUES(101); CREATE TABLE t2(y INTEGER REFERENCES t1 (x)); INSERT INTO t2 VALUES(100); INSERT INTO t2 VALUES(101); SELECT 1, x FROM t1; SELECT 2, y FROM t2; } } {1 100 1 101 2 100 2 101} do_test fkey3-1.2 { catchsql { DELETE FROM t1 WHERE x=100; } } {1 {FOREIGN KEY constraint failed}} do_test fkey3-1.3 { catchsql { DROP TABLE t1; } } {1 {FOREIGN KEY constraint failed}} do_test fkey3-1.4 { execsql { DROP TABLE t2; } } {} do_test fkey3-1.5 { execsql { DROP TABLE t1; } } {} do_test fkey3-2.1 { execsql { PRAGMA foreign_keys=ON; CREATE TABLE t1(x INTEGER PRIMARY KEY); INSERT INTO t1 VALUES(100); INSERT INTO t1 VALUES(101); CREATE TABLE t2(y INTEGER PRIMARY KEY REFERENCES t1 (x) ON UPDATE SET NULL); } execsql { INSERT INTO t2 VALUES(100); INSERT INTO t2 VALUES(101); SELECT 1, x FROM t1; SELECT 2, y FROM t2; } } {1 100 1 101 2 100 2 101} #------------------------------------------------------------------------- # The following tests - fkey-3.* - test some edge cases to do with # inserting rows into tables that have foreign keys where the parent # table is the same as the child table. Especially cases where the # new row being inserted matches itself. # do_execsql_test 3.1.1 { CREATE TABLE t3(a, b, c, d, UNIQUE(a, b), FOREIGN KEY(c, d) REFERENCES t3(a, b) ); INSERT INTO t3 VALUES(1, 2, 1, 2); } {} do_catchsql_test 3.1.2 { INSERT INTO t3 VALUES(NULL, 2, 5, 2); } {1 {FOREIGN KEY constraint failed}} do_catchsql_test 3.1.3 { INSERT INTO t3 VALUES(NULL, 3, 5, 2); } {1 {FOREIGN KEY constraint failed}} do_execsql_test 3.2.1 { CREATE TABLE t4(a UNIQUE, b REFERENCES t4(a)); } do_catchsql_test 3.2.2 { INSERT INTO t4 VALUES(NULL, 1); } {1 {FOREIGN KEY constraint failed}} do_execsql_test 3.3.1 { CREATE TABLE t5(a INTEGER PRIMARY KEY, b REFERENCES t5(a)); INSERT INTO t5 VALUES(NULL, 1); } {} do_catchsql_test 3.3.2 { INSERT INTO t5 VALUES(NULL, 3); } {1 {FOREIGN KEY constraint failed}} do_execsql_test 3.4.1 { CREATE TABLE t6(a INTEGER PRIMARY KEY, b, c, d, FOREIGN KEY(c, d) REFERENCES t6(a, b) ); CREATE UNIQUE INDEX t6i ON t6(b, a); } do_execsql_test 3.4.2 { INSERT INTO t6 VALUES(NULL, 'a', 1, 'a'); } {} do_execsql_test 3.4.3 { INSERT INTO t6 VALUES(2, 'a', 2, 'a'); } {} do_execsql_test 3.4.4 { INSERT INTO t6 VALUES(NULL, 'a', 1, 'a'); } {} do_execsql_test 3.4.5 { INSERT INTO t6 VALUES(5, 'a', 2, 'a'); } {} do_catchsql_test 3.4.6 { INSERT INTO t6 VALUES(NULL, 'a', 65, 'a'); } {1 {FOREIGN KEY constraint failed}} do_execsql_test 3.4.7 { INSERT INTO t6 VALUES(100, 'one', 100, 'one'); DELETE FROM t6 WHERE a = 100; } do_execsql_test 3.4.8 { INSERT INTO t6 VALUES(100, 'one', 100, 'one'); UPDATE t6 SET c = 1, d = 'a' WHERE a = 100; DELETE FROM t6 WHERE a = 100; } do_execsql_test 3.5.1 { CREATE TABLE t7(a, b, c, d INTEGER PRIMARY KEY, FOREIGN KEY(c, d) REFERENCES t7(a, b) ); CREATE UNIQUE INDEX t7i ON t7(a, b); } do_execsql_test 3.5.2 { INSERT INTO t7 VALUES('x', 1, 'x', NULL) } {} do_execsql_test 3.5.3 { INSERT INTO t7 VALUES('x', 2, 'x', 2) } {} do_catchsql_test 3.5.4 { INSERT INTO t7 VALUES('x', 450, 'x', NULL); } {1 {FOREIGN KEY constraint failed}} do_catchsql_test 3.5.5 { INSERT INTO t7 VALUES('x', 450, 'x', 451); } {1 {FOREIGN KEY constraint failed}} do_execsql_test 3.6.1 { CREATE TABLE t8(a, b, c, d, e, FOREIGN KEY(c, d) REFERENCES t8(a, b)); CREATE UNIQUE INDEX t8i1 ON t8(a, b); CREATE UNIQUE INDEX t8i2 ON t8(c); INSERT INTO t8 VALUES(1, 1, 1, 1, 1); } do_catchsql_test 3.6.2 { UPDATE t8 SET d = 2; } {1 {FOREIGN KEY constraint failed}} do_execsql_test 3.6.3 { UPDATE t8 SET d = 1; } do_execsql_test 3.6.4 { UPDATE t8 SET e = 2; } do_catchsql_test 3.6.5 { CREATE TABLE TestTable ( id INTEGER PRIMARY KEY, name text, source_id integer not null, parent_id integer, foreign key(source_id, parent_id) references TestTable(source_id, id) ); CREATE UNIQUE INDEX testindex on TestTable(source_id, id); PRAGMA foreign_keys=1; INSERT INTO TestTable VALUES (1, 'parent', 1, null); INSERT INTO TestTable VALUES (2, 'child', 1, 1); UPDATE TestTable SET parent_id=1000 where id=2; } {1 {FOREIGN KEY constraint failed}} finish_test