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      1 # 2005 September 19
      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 # This file implements regression tests for SQLite library.  The
     12 # focus of this script is testing the ALTER TABLE statement and
     13 # specifically out-of-memory conditions within that command.
     14 #
     15 # $Id: altermalloc.test,v 1.10 2008/10/30 17:21:13 danielk1977 Exp $
     16 #
     17 
     18 set testdir [file dirname $argv0]
     19 source $testdir/tester.tcl
     20 
     21 # If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
     22 ifcapable !altertable||!memdebug {
     23   finish_test
     24   return
     25 }
     26 
     27 source $testdir/malloc_common.tcl
     28 
     29 do_malloc_test altermalloc-1 -tclprep {
     30   db close
     31 } -tclbody {
     32   if {[catch {sqlite3 db test.db}]} {
     33     error "out of memory"
     34   }
     35   sqlite3_db_config_lookaside db 0 0 0
     36   sqlite3_extended_result_codes db 1
     37 } -sqlbody {
     38   CREATE TABLE t1(a int);
     39   ALTER TABLE t1 ADD COLUMN b INTEGER DEFAULT NULL;
     40   ALTER TABLE t1 ADD COLUMN c TEXT DEFAULT 'default-text';
     41   ALTER TABLE t1 RENAME TO t2;
     42   ALTER TABLE t2 ADD COLUMN d BLOB DEFAULT X'ABCD';
     43 }
     44 
     45 # Test malloc() failure on an ALTER TABLE on a virtual table.
     46 #
     47 ifcapable vtab {
     48   do_malloc_test altermalloc-vtab -tclprep {
     49     sqlite3 db2 test.db 
     50     sqlite3_db_config_lookaside db2 0 0 0
     51     sqlite3_extended_result_codes db2 1
     52     register_echo_module [sqlite3_connection_pointer db2]
     53     db2 eval {
     54       CREATE TABLE t1(a, b VARCHAR, c INTEGER);
     55       CREATE VIRTUAL TABLE t1echo USING echo(t1);
     56     }
     57     db2 close
     58 
     59     register_echo_module [sqlite3_connection_pointer db]
     60   } -tclbody {
     61     set rc [catch {db eval { ALTER TABLE t1echo RENAME TO t1_echo }} msg]
     62     if {$msg eq "vtable constructor failed: t1echo"} {
     63       set msg "out of memory"
     64     }
     65     if {$rc} {
     66       error $msg
     67     }
     68   }
     69 }
     70 
     71 finish_test
     72