xref: /sqlite-3.40.0/test/lookaside.test (revision 38d69855) 
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# Tests for the lookaside memory allocator.
13#
14# $Id: lookaside.test,v 1.10 2009/04/09 01:23:49 drh Exp $
15
16set testdir [file dirname $argv0]
17source $testdir/tester.tcl
18
19ifcapable !lookaside {
20  finish_test
21  return
22}
23
24# The tests in this file configure the lookaside allocator after a
25# connection is opened. This will not work if there is any "presql"
26# configured (SQL run within the [sqlite3] wrapper in tester.tcl).
27if {[info exists ::G(perm:presql)]} {
28  finish_test
29  return
30}
31
32test_set_config_pagecache 0 0
33
34catch {db close}
35sqlite3_shutdown
36sqlite3_config_scratch 0 0
37sqlite3_initialize
38autoinstall_test_functions
39sqlite3 db test.db
40
41# Make sure sqlite3_db_config() and sqlite3_db_status are working.
42#
43do_test lookaside-1.1 {
44  catch {sqlite3_config_error db}
45} {0}
46
47do_test lookaside-1.2 {
48  sqlite3_db_config_lookaside db 1 18 18
49} {0}
50do_test lookaside-1.3.1 {
51  sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0
52} {0 0 0}
53do_test lookaside-1.3.2 {
54  sqlite3_db_status db DBSTATUS_LOOKASIDE_HIT 0
55} {0 0 0}
56do_test lookaside-1.3.3 {
57  sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_SIZE 0
58} {0 0 0}
59do_test lookaside-1.3.4 {
60  sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_FULL 0
61} {0 0 0}
62
63do_test lookaside-1.4 {
64  db eval {CREATE TABLE t1(w,x,y,z);}
65  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
66  set p [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_HIT 0] 2]
67  set q [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_SIZE 0] 2]
68  set r [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_FULL 0] 2]
69  expr {$x==0 && $y<$z && $z==18 && $p>0 && $q>0 && $r>0}
70} {0}
71do_test lookaside-1.5 {
72  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 1] break
73  expr {$x==0 && $y<$z && $z==18}
74} {0}
75do_test lookaside-1.6 {
76  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
77  expr {$x==0 && $y==$z && $y<18}
78} {1}
79do_test lookaside-1.7 {
80  db cache flush
81  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
82  expr {$x==0 && $y==0 && $z<18}
83} {1}
84do_test lookaside-1.8 {
85  db cache flush
86  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 1] break
87  expr {$x==0 && $y==0 && $z<18}
88} {1}
89do_test lookaside-1.9 {
90  db cache flush
91  sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0
92} {0 0 0}
93
94do_test lookaside-2.1 {
95  sqlite3_db_config_lookaside db 0 100 1000
96} {0}
97do_test lookaside-2.2 {
98  db eval {CREATE TABLE t2(x);}
99  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
100  expr {$x==0 && $y<$z && $z>10 && $z<100}
101} {1}
102do_test lookaside-2.3 {
103  sqlite3_db_config_lookaside db 0 50 50
104} {5}  ;# SQLITE_BUSY
105do_test lookaside-2.4 {
106  db cache flush
107  sqlite3_db_config_lookaside db 0 50 50
108} {0}  ;# SQLITE_OK
109do_test lookaside-2.5 {
110  sqlite3_db_config_lookaside db 0 -1 50
111} {0}  ;# SQLITE_OK
112do_test lookaside-2.6 {
113  sqlite3_db_config_lookaside db 0 50 -1
114} {0}  ;# SQLITE_OK
115
116# sqlite3_db_status() with an invalid verb returns an error.
117#
118do_test lookaside-3.1 {
119  sqlite3_db_status db 99999 0
120} {1 0 0}
121
122# Test that an invalid verb on sqlite3_config() is detected and
123# reported as an error.
124#
125do_test lookaside-4.1 {
126  db close
127  sqlite3_shutdown
128  catch sqlite3_config_error
129} {0}
130sqlite3_initialize
131autoinstall_test_functions
132
133test_restore_config_pagecache
134finish_test
135