# 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.tcl

 ifcapable {!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 ON INSERT RESTRICT,

       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