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      1 # 2008 August 01
      2 #
      3 # The author disclaims copyright to this source code.  In place of
      4 # a legal notice, here is a blessing:
      5 #
      6 #    May you do good and not evil.
      7 #    May you find forgiveness for yourself and forgive others.
      8 #    May you share freely, never taking more than you give.
      9 #
     10 #***********************************************************************
     11 #
     12 # This test script checks malloc failures in various obscure operations.
     13 # 
     14 # $Id: mallocH.test,v 1.2 2008/08/01 20:10:09 drh Exp $
     15 
     16 set testdir [file dirname $argv0]
     17 source $testdir/tester.tcl
     18 source $testdir/malloc_common.tcl
     19 
     20 # Malloc failures in journaling of in-memory databases.
     21 #
     22 do_malloc_test mallocH-1 -tclprep {
     23   db close
     24   sqlite3 db :memory:
     25   db eval {
     26     CREATE TABLE t1(x UNIQUE, y);
     27     INSERT INTO t1 VALUES(1,2);
     28   }
     29 } -sqlbody {
     30   INSERT INTO t1 SELECT x+1, y+100 FROM t1;
     31 }
     32 
     33 # Malloc failures while parsing a CASE expression.
     34 #
     35 do_malloc_test mallocH-2 -sqlbody {
     36    SELECT CASE WHEN 1 THEN 1 END;
     37 }
     38 
     39 # Malloc failures while parsing a EXISTS(SELECT ...)
     40 #
     41 do_malloc_test mallocH-3 -sqlbody {
     42    SELECT 3+EXISTS(SELECT * FROM sqlite_master);
     43 }
     44 
     45 # Malloc failures within the replace() function.
     46 #
     47 do_malloc_test mallocH-3 -sqlbody {
     48    SELECT replace('ababa','a','xyzzy');
     49 }
     50 
     51 # Malloc failures during EXPLAIN.
     52 #
     53 ifcapable explain {
     54   do_malloc_test mallocH-4 -sqlprep {
     55      CREATE TABLE abc(a PRIMARY KEY, b, c);
     56   } -sqlbody {
     57      EXPLAIN SELECT * FROM abc AS t2 WHERE rowid=1;
     58      EXPLAIN QUERY PLAN SELECT * FROM abc AS t2 WHERE rowid=1;
     59   }
     60 }
     61 
     62 # Malloc failure during integrity_check pragma.
     63 #
     64 do_malloc_test mallocH-5 -sqlprep {
     65    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
     66    CREATE TABLE t2(x,y);
     67    INSERT INTO t1 VALUES(1,2);
     68    INSERT INTO t2 SELECT * FROM t1;
     69 } -sqlbody {
     70    PRAGMA integrity_check;
     71 }
     72 
     73 finish_test
     74