# 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