xref: /sqlite-3.40.0/test/walhook.test (revision 5a299f91) 
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 $testdir/tester.tcl
22
23ifcapable !wal {finish_test ; return }
24
25proc log_file_size {nFrame pgsz} {
26  expr {12 + ($pgsz+16)*$nFrame}
27}
28
29set ::wal_hook [list]
30proc wal_hook {zDb nEntry} {
31  lappend ::wal_hook $zDb $nEntry
32  return 0
33}
34db wal_hook wal_hook
35
36do_test walhook-1.1 {
37  execsql {
38    PRAGMA page_size = 1024;
39    PRAGMA journal_mode = wal;
40    PRAGMA synchronous = normal;
41    CREATE TABLE t1(i PRIMARY KEY, j);
42  }
43  set ::wal_hook
44} {main 3}
45
46do_test walhook-1.2 {
47  set ::wal_hook [list]
48  execsql { INSERT INTO t1 VALUES(1, 'one') }
49  set ::wal_hook
50} {main 5}
51do_test walhook-1.3 {
52  proc wal_hook {args} { return 1 }
53  execsql { INSERT INTO t1 VALUES(2, 'two') }
54  file size test.db
55} [expr 3*1024]
56do_test walhook-1.4 {
57  proc wal_hook {zDb nEntry} {
58    execsql { PRAGMA wal_checkpoint }
59    return 0
60  }
61  execsql { CREATE TABLE t2(a, b) }
62  file size test.db
63} [expr 4*1024]
64
65do_test walhook-1.5 {
66  sqlite3 db2 test.db
67  proc wal_hook {zDb nEntry} {
68    execsql { PRAGMA wal_checkpoint } db2
69    return 0
70  }
71  execsql { CREATE TABLE t3(a PRIMARY KEY, b) }
72  file size test.db
73} [expr 6*1024]
74
75db2 close
76db close
77sqlite3 db test.db
78do_test walhook-2.1 {
79  execsql { PRAGMA synchronous = NORMAL }
80  execsql { PRAGMA wal_autocheckpoint }
81} {1000}
82do_test walhook-2.2 {
83  execsql { PRAGMA wal_autocheckpoint = 10}
84} {10}
85do_test walhook-2.3 {
86  execsql { PRAGMA wal_autocheckpoint }
87} {10}
88
89#
90# The database connection is configured with "PRAGMA wal_autocheckpoint = 10".
91# Check that transactions are written to the log file until it contains at
92# least 10 frames, then the database is checkpointed. Subsequent transactions
93# are written into the start of the log file.
94#
95foreach {tn sql dbpages logpages} {
96  4 "CREATE TABLE t4(x PRIMARY KEY, y)"   6   3
97  5 "INSERT INTO t4 VALUES(1, 'one')"     6   5
98  6 "INSERT INTO t4 VALUES(2, 'two')"     6   7
99  7 "INSERT INTO t4 VALUES(3, 'three')"   6   9
100  8 "INSERT INTO t4 VALUES(4, 'four')"    8  11
101  9 "INSERT INTO t4 VALUES(5, 'five')"    8  11
102} {
103  do_test walhook-2.$tn {
104    execsql $sql
105    list [file size test.db] [file size test.db-wal]
106  } [list [expr $dbpages*1024] [log_file_size $logpages 1024]]
107}
108
109catch { db2 close }
110catch { db close }
111finish_test
112