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# 2010 April 19
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is testing the operation of the library in
# "PRAGMA journal_mode=WAL" mode.
#
# More specifically, this file contains regression tests for the
# sqlite3_wal_hook() mechanism, including the sqlite3_wal_autocheckpoint()
# and "PRAGMA wal_autocheckpoint" convenience interfaces.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/wal_common.tcl
ifcapable !wal {finish_test ; return }
set ::wal_hook [list]
proc wal_hook {zDb nEntry} {
lappend ::wal_hook $zDb $nEntry
return 0
}
db wal_hook wal_hook
do_test walhook-1.1 {
execsql {
PRAGMA page_size = 1024;
PRAGMA auto_vacuum = 0;
PRAGMA journal_mode = wal;
PRAGMA synchronous = normal;
CREATE TABLE t1(i PRIMARY KEY, j);
}
set ::wal_hook
} {main 3}
do_test walhook-1.2 {
set ::wal_hook [list]
execsql { INSERT INTO t1 VALUES(1, 'one') }
set ::wal_hook
} {main 5}
do_test walhook-1.3 {
proc wal_hook {args} { db eval {PRAGMA wal_checkpoint}; return 0 }
execsql { INSERT INTO t1 VALUES(2, 'two') }
file size test.db
} [expr 3*1024]
do_test walhook-1.4 {
proc wal_hook {zDb nEntry} {
execsql { PRAGMA wal_checkpoint }
return 0
}
execsql { CREATE TABLE t2(a, b) }
file size test.db
} [expr 4*1024]
do_test walhook-1.5 {
sqlite3 db2 test.db
proc wal_hook {zDb nEntry} {
execsql { PRAGMA wal_checkpoint } db2
return 0
}
execsql { CREATE TABLE t3(a PRIMARY KEY, b) }
file size test.db
} [expr 6*1024]
db2 close
db close
sqlite3 db test.db
do_test walhook-2.1 {
execsql { PRAGMA synchronous = NORMAL }
execsql { PRAGMA wal_autocheckpoint }
} {1000}
do_test walhook-2.2 {
execsql { PRAGMA wal_autocheckpoint = 10}
} {10}
do_test walhook-2.3 {
execsql { PRAGMA wal_autocheckpoint }
} {10}
#
# The database connection is configured with "PRAGMA wal_autocheckpoint = 10".
# Check that transactions are written to the log file until it contains at
# least 10 frames, then the database is checkpointed. Subsequent transactions
# are written into the start of the log file.
#
foreach {tn sql dbpages logpages} {
4 "CREATE TABLE t4(x PRIMARY KEY, y)" 6 3
5 "INSERT INTO t4 VALUES(1, 'one')" 6 5
6 "INSERT INTO t4 VALUES(2, 'two')" 6 7
7 "INSERT INTO t4 VALUES(3, 'three')" 6 9
8 "INSERT INTO t4 VALUES(4, 'four')" 8 11
9 "INSERT INTO t4 VALUES(5, 'five')" 8 11
} {
do_test walhook-2.$tn {
execsql $sql
list [file size test.db] [file size test.db-wal]
} [list [expr $dbpages*1024] [wal_file_size $logpages 1024]]
}
catch { db2 close }
catch { db close }
finish_test
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