# 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