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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: mallocI.test,v 1.3 2009/08/10 04:26:39 danielk1977 Exp $ |  | 
|  15  |  | 
|  16 set testdir [file dirname $argv0] |  | 
|  17 source $testdir/tester.tcl |  | 
|  18 source $testdir/malloc_common.tcl |  | 
|  19  |  | 
|  20 # Malloc failures in a view. |  | 
|  21 # |  | 
|  22 do_malloc_test mallocI-1 -sqlprep { |  | 
|  23   CREATE TABLE t1(a,b,c,d); |  | 
|  24   CREATE VIEW v1 AS SELECT a*b, c*d FROM t1 ORDER BY b-d; |  | 
|  25 } -sqlbody { |  | 
|  26   SELECT * FROM v1 |  | 
|  27 } |  | 
|  28  |  | 
|  29 # Malloc failure while trying to service a pragma on a TEMP database. |  | 
|  30 # |  | 
|  31 do_malloc_test mallocI-2 -sqlbody { |  | 
|  32   PRAGMA temp.page_size |  | 
|  33 } |  | 
|  34  |  | 
|  35 # Malloc failure while creating a table from a SELECT statement. |  | 
|  36 # |  | 
|  37 do_malloc_test mallocI-3 -sqlprep { |  | 
|  38   CREATE TABLE t1(a,b,c); |  | 
|  39 } -sqlbody { |  | 
|  40   CREATE TABLE t2 AS SELECT b,c FROM t1; |  | 
|  41 } |  | 
|  42  |  | 
|  43 # This tests that a malloc failure that occurs while passing the schema |  | 
|  44 # does not result in a SHARED lock being left on the database file. |  | 
|  45 # |  | 
|  46 do_malloc_test mallocI-4 -tclprep { |  | 
|  47   sqlite3 db2 test.db |  | 
|  48   db2 eval { |  | 
|  49     CREATE TABLE t1(a, b, c); |  | 
|  50     CREATE TABLE t2(a, b, c); |  | 
|  51   } |  | 
|  52 } -sqlbody { |  | 
|  53   SELECT * FROM t1 |  | 
|  54 } -cleanup { |  | 
|  55   do_test mallocI-4.$::n.2 { |  | 
|  56     # If this INSERT is possible then [db] does not hold a shared lock |  | 
|  57     # on the database file. |  | 
|  58     catchsql { INSERT INTO t1 VALUES(1, 2, 3) } db2 |  | 
|  59   } {0 {}} |  | 
|  60 } |  | 
|  61 catch { db2 close } |  | 
|  62  |  | 
|  63 finish_test |  | 
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