# 2008 August 01

 #

 # 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 test script checks malloc failures in various obscure operations.

 # 

 # $Id: mallocH.test,v 1.2 2008/08/01 20:10:09 drh Exp $

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 source $testdir/malloc_common.tcl

 # Malloc failures in journaling of in-memory databases.

 #

 do_malloc_test mallocH-1 -tclprep {

   db close

   sqlite3 db :memory:

   db eval {

     CREATE TABLE t1(x UNIQUE, y);

     INSERT INTO t1 VALUES(1,2);

   }

 } -sqlbody {

   INSERT INTO t1 SELECT x+1, y+100 FROM t1;

 }

 # Malloc failures while parsing a CASE expression.

 #

 do_malloc_test mallocH-2 -sqlbody {

    SELECT CASE WHEN 1 THEN 1 END;

 }

 # Malloc failures while parsing a EXISTS(SELECT ...)

 #

 do_malloc_test mallocH-3 -sqlbody {

    SELECT 3+EXISTS(SELECT * FROM sqlite_master);

 }

 # Malloc failures within the replace() function.

 #

 do_malloc_test mallocH-3 -sqlbody {

    SELECT replace('ababa','a','xyzzy');

 }

 # Malloc failures during EXPLAIN.

 #

 ifcapable explain {

   do_malloc_test mallocH-4 -sqlprep {

      CREATE TABLE abc(a PRIMARY KEY, b, c);

   } -sqlbody {

      EXPLAIN SELECT * FROM abc AS t2 WHERE rowid=1;

      EXPLAIN QUERY PLAN SELECT * FROM abc AS t2 WHERE rowid=1;

   }

 }

 # Malloc failure during integrity_check pragma.

 #

 do_malloc_test mallocH-5 -sqlprep {

    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);

    CREATE TABLE t2(x,y);

    INSERT INTO t1 VALUES(1,2);

    INSERT INTO t2 SELECT * FROM t1;

 } -sqlbody {

    PRAGMA integrity_check;

 }

 finish_test