xref: /sqlite-3.40.0/test/walhook.test (revision 23ea97b6) 
1# 2010 April 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 file is testing the operation of the library in
13# "PRAGMA journal_mode=WAL" mode.
14#
15# More specifically, this file contains regression tests for the
16# sqlite3_wal_hook() mechanism, including the sqlite3_wal_autocheckpoint()
17# and "PRAGMA wal_autocheckpoint" convenience interfaces.
18#
19
20set testdir [file dirname $argv0]
21source $testdir/tester.tcl
22
23ifcapable !wal {finish_test ; return }
24
25proc log_file_size {nFrame pgsz} {
26  expr {24 + ($pgsz+24)*$nFrame}
27}
28
29set ::wal_hook [list]
30proc wal_hook {zDb nEntry} {
31  lappend ::wal_hook $zDb $nEntry
32  return 0
33}
34db wal_hook wal_hook
35
36do_test walhook-1.1 {
37  execsql {
38    PRAGMA page_size = 1024;
39    PRAGMA auto_vacuum = 0;
40    PRAGMA journal_mode = wal;
41    PRAGMA synchronous = normal;
42    CREATE TABLE t1(i PRIMARY KEY, j);
43  }
44  set ::wal_hook
45} {main 3}
46
47do_test walhook-1.2 {
48  set ::wal_hook [list]
49  execsql { INSERT INTO t1 VALUES(1, 'one') }
50  set ::wal_hook
51} {main 5}
52do_test walhook-1.3 {
53  proc wal_hook {args} { db eval {PRAGMA wal_checkpoint}; return 0 }
54  execsql { INSERT INTO t1 VALUES(2, 'two') }
55  file size test.db
56} [expr 3*1024]
57do_test walhook-1.4 {
58  proc wal_hook {zDb nEntry} {
59    execsql { PRAGMA wal_checkpoint }
60    return 0
61  }
62  execsql { CREATE TABLE t2(a, b) }
63  file size test.db
64} [expr 4*1024]
65
66do_test walhook-1.5 {
67  sqlite3 db2 test.db
68  proc wal_hook {zDb nEntry} {
69    execsql { PRAGMA wal_checkpoint } db2
70    return 0
71  }
72  execsql { CREATE TABLE t3(a PRIMARY KEY, b) }
73  file size test.db
74} [expr 6*1024]
75
76db2 close
77db close
78sqlite3 db test.db
79do_test walhook-2.1 {
80  execsql { PRAGMA synchronous = NORMAL }
81  execsql { PRAGMA wal_autocheckpoint }
82} {1000}
83do_test walhook-2.2 {
84  execsql { PRAGMA wal_autocheckpoint = 10}
85} {10}
86do_test walhook-2.3 {
87  execsql { PRAGMA wal_autocheckpoint }
88} {10}
89
90#
91# The database connection is configured with "PRAGMA wal_autocheckpoint = 10".
92# Check that transactions are written to the log file until it contains at
93# least 10 frames, then the database is checkpointed. Subsequent transactions
94# are written into the start of the log file.
95#
96foreach {tn sql dbpages logpages} {
97  4 "CREATE TABLE t4(x PRIMARY KEY, y)"   6   3
98  5 "INSERT INTO t4 VALUES(1, 'one')"     6   5
99  6 "INSERT INTO t4 VALUES(2, 'two')"     6   7
100  7 "INSERT INTO t4 VALUES(3, 'three')"   6   9
101  8 "INSERT INTO t4 VALUES(4, 'four')"    8  11
102  9 "INSERT INTO t4 VALUES(5, 'five')"    8  11
103} {
104  do_test walhook-2.$tn {
105    execsql $sql
106    list [file size test.db] [file size test.db-wal]
107  } [list [expr $dbpages*1024] [log_file_size $logpages 1024]]
108}
109
110catch { db2 close }
111catch { db close }
112finish_test
113