xref: /sqlite-3.40.0/test/softheap1.test (revision 51a74d4c) 
1# 2007 Aug 10
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 reproduces the problem reported by ticket #2565,
13# A database corruption bug that occurs in auto_vacuum mode when
14# the soft_heap_limit is set low enough to be triggered.
15#
16# $Id: softheap1.test,v 1.5 2008/07/08 17:13:59 danielk1977 Exp $
17
18
19set testdir [file dirname $argv0]
20source $testdir/tester.tcl
21
22ifcapable !integrityck {
23  finish_test
24  return
25}
26
27# EVIDENCE-OF: R-26343-45930 This pragma invokes the
28# sqlite3_soft_heap_limit64() interface with the argument N, if N is
29# specified and is a non-negative integer.
30#
31# EVIDENCE-OF: R-64451-07163 The soft_heap_limit pragma always returns
32# the same integer that would be returned by the
33# sqlite3_soft_heap_limit64(-1) C-language function.
34#
35do_test softheap1-1.0 {
36  execsql {PRAGMA soft_heap_limit}
37} [sqlite3_soft_heap_limit -1]
38do_test softheap1-1.1 {
39  execsql {PRAGMA soft_heap_limit=123456; PRAGMA soft_heap_limit;}
40} {123456 123456}
41do_test softheap1-1.2 {
42  sqlite3_soft_heap_limit -1
43} {123456}
44do_test softheap1-1.3 {
45  execsql {PRAGMA soft_heap_limit(-1); PRAGMA soft_heap_limit;}
46} {123456 123456}
47do_test softheap1-1.4 {
48  execsql {PRAGMA soft_heap_limit(0); PRAGMA soft_heap_limit;}
49} {0 0}
50
51sqlite3_soft_heap_limit 5000
52do_test softheap1-2.0 {
53  execsql {PRAGMA soft_heap_limit}
54} {5000}
55do_test softheap1-2.1 {
56  execsql {
57    PRAGMA auto_vacuum=1;
58    CREATE TABLE t1(x);
59    INSERT INTO t1 VALUES(hex(randomblob(1000)));
60    BEGIN;
61  }
62  execsql {
63    CREATE TABLE t2 AS SELECT * FROM t1;
64  }
65  execsql {
66    ROLLBACK;
67  }
68  execsql {
69    PRAGMA integrity_check;
70  }
71} {ok}
72
73sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
74finish_test
75