# 2001 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.tclifcapable {!foreignkey} {  finish_test  return}# Create a table and some data to work with.#do_test fkey1-1.0 {  execsql {    CREATE TABLE t1(      a INTEGER PRIMARY KEY,      b INTEGER           REFERENCES t1 ON DELETE CASCADE           REFERENCES t2,      c TEXT,      FOREIGN KEY (b,c) REFERENCES t2(x,y) ON UPDATE CASCADE    );  }} {}do_test fkey1-1.1 {  execsql {    CREATE TABLE t2(      x INTEGER PRIMARY KEY,      y TEXT    );  }} {}do_test fkey1-1.2 {  execsql {    CREATE TABLE t3(      a INTEGER REFERENCES t2,      b INTEGER REFERENCES t1,      FOREIGN KEY (a,b) REFERENCES t2(x,y)    );  }} {}do_test fkey1-2.1 {  execsql {    CREATE TABLE t4(a integer primary key);    CREATE TABLE t5(x references t4);    CREATE TABLE t6(x references t4);    CREATE TABLE t7(x references t4);    CREATE TABLE t8(x references t4);    CREATE TABLE t9(x references t4);    CREATE TABLE t10(x references t4);    DROP TABLE t7;    DROP TABLE t9;    DROP TABLE t5;    DROP TABLE t8;    DROP TABLE t6;    DROP TABLE t10;  }} {}   finish_test