# 2005 February 14

 #

 # 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.  The

 # focus of this file is testing the CREATE INDEX statement.

 #

 # $Id: index3.test,v 1.3 2008/03/19 13:03:34 drh Exp $

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # Ticket #1115.  Make sure that when a UNIQUE index is created on a

 # non-unique column (or columns) that it fails and that it leaves no

 # residue behind.

 #

 do_test index3-1.1 {

   execsql {

     CREATE TABLE t1(a);

     INSERT INTO t1 VALUES(1);

     INSERT INTO t1 VALUES(1);

     SELECT * FROM t1;

   }

 } {1 1}

 do_test index3-1.2 {

   catchsql {

     BEGIN;

     CREATE UNIQUE INDEX i1 ON t1(a);

   }

 } {1 {indexed columns are not unique}}

 do_test index3-1.3 {

   catchsql COMMIT;

 } {0 {}}

 integrity_check index3-1.4

 # This test corrupts the database file so it must be the last test

 # in the series.

 #

 do_test index3-99.1 {

   execsql {

     PRAGMA writable_schema=on;

     UPDATE sqlite_master SET sql='nonsense';

   }

   db close

   sqlite3 db test.db

   catchsql {

     DROP INDEX i1;

   }

 } {1 {malformed database schema (t1) - near "nonsense": syntax error}}

 finish_test