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      1 # 2008 December 15
      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 # $Id: savepoint3.test,v 1.5 2009/06/05 17:09:12 drh Exp $
     13 
     14 set testdir [file dirname $argv0]
     15 source $testdir/tester.tcl
     16 
     17 source $testdir/malloc_common.tcl
     18 
     19 do_malloc_test savepoint3-1 -sqlprep {
     20   CREATE TABLE t1(a, b, c);
     21   INSERT INTO t1 VALUES(1, 2, 3);
     22 } -sqlbody {
     23   SAVEPOINT one;
     24     INSERT INTO t1 VALUES(4, 5, 6);
     25     SAVEPOINT two;
     26       DELETE FROM t1;
     27     ROLLBACK TO two;
     28   RELEASE one;
     29 }
     30 
     31 do_malloc_test savepoint3-2 -sqlprep {
     32   PRAGMA cache_size = 10;
     33   CREATE TABLE t1(a, b, c);
     34   INSERT INTO t1 VALUES(randstr(400,400), randstr(400,400), randstr(400,400));
     35   INSERT INTO t1 SELECT 
     36     randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     37   INSERT INTO t1 
     38     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     39   INSERT INTO t1 
     40     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     41   INSERT INTO t1 
     42     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     43   INSERT INTO t1 
     44     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     45   INSERT INTO t1 
     46     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     47   INSERT INTO t1 
     48     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     49   INSERT INTO t1 
     50     SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
     51 } -sqlbody {
     52   PRAGMA cache_size = 10;
     53   SAVEPOINT one;
     54     DELETE FROM t1 WHERE rowid < 5;
     55     SAVEPOINT two;
     56       DELETE FROM t1 WHERE rowid > 10;
     57     ROLLBACK TO two;
     58   ROLLBACK TO one;
     59   RELEASE one;
     60 }
     61 
     62 do_ioerr_test savepoint3.3 -sqlprep {
     63   CREATE TABLE t1(a, b, c);
     64   INSERT INTO t1 VALUES(1, randstr(1000,1000), randstr(1000,1000));
     65   INSERT INTO t1 VALUES(2, randstr(1000,1000), randstr(1000,1000));
     66 } -sqlbody {
     67   BEGIN;
     68     UPDATE t1 SET a = 3 WHERE a = 1;
     69     SAVEPOINT one;
     70       UPDATE t1 SET a = 4 WHERE a = 2;
     71   COMMIT;
     72 } -cleanup {
     73   db eval {
     74     SAVEPOINT one;
     75     RELEASE one;
     76   }
     77 }
     78 
     79 # The following test does a really big savepoint rollback. One involving
     80 # more than 4000 pages. The idea is to get a specific sqlite3BitvecSet()
     81 # operation in pagerPlaybackSavepoint() to fail.
     82 #do_malloc_test savepoint3-4 -sqlprep {
     83 #  BEGIN;
     84 #    CREATE TABLE t1(a, b);
     85 #    CREATE INDEX i1 ON t1(a);
     86 #    CREATE INDEX i2 ON t1(b);
     87 #    INSERT INTO t1 VALUES(randstr(500,500), randstr(500,500));        --     1
     88 #    INSERT INTO t1 VALUES(randstr(500,500), randstr(500,500));        --     2
     89 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --     4
     90 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --     8
     91 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --    16
     92 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --    32
     93 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --    64
     94 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --   128
     95 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --   256
     96 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --   512
     97 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --  1024
     98 #    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --  2048
     99 #  COMMIT;
    100 #  BEGIN;
    101 #    SAVEPOINT abc;
    102 #      UPDATE t1 SET a = randstr(500,500);
    103 #} -sqlbody {
    104 #    ROLLBACK TO abc;
    105 #}
    106 
    107 
    108 # Cause a specific malloc in savepoint rollback code to fail.
    109 #
    110 do_malloc_test savepoint3-4 -start 7 -sqlprep {
    111   PRAGMA auto_vacuum = incremental;
    112   PRAGMA cache_size = 1000;
    113 
    114   CREATE TABLE t1(a, b);
    115   CREATE TABLE t2(a, b);
    116   CREATE TABLE t3(a, b);
    117   INSERT INTO t1 VALUES(1, randstr(500,500));
    118   INSERT INTO t1 VALUES(2, randstr(500,500));
    119   INSERT INTO t1 VALUES(3, randstr(500,500));
    120   DELETE FROM t1;
    121 
    122   BEGIN;
    123     INSERT INTO t1 VALUES(1, randstr(500,500));
    124     INSERT INTO t1 VALUES(2, randstr(500,500));
    125     INSERT INTO t1 VALUES(3, randstr(500,500));
    126     DROP TABLE t3;                  -- Page 5 of the database file is now free.
    127     DROP TABLE t2;                  -- Page 4 of the database file is now free.
    128 
    129     SAVEPOINT abc;
    130       PRAGMA incremental_vacuum;
    131 } -sqlbody {
    132   ROLLBACK TO abc;
    133 }
    134 
    135 
    136 finish_test
    137