test/walhook.test

# 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.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

proc sqlite3_wal {args} {
  eval sqlite3 $args
  [lindex $args 0] eval { 
    PRAGMA journal_mode = wal;
    PRAGMA synchronous = normal;
    PRAGMA page_size = 1024;
  }
}
sqlite3_wal db test.db
db wal_hook wal_hook

set ::wal_hook [list]
proc wal_hook {zDb nEntry} {
  lappend ::wal_hook $zDb $nEntry
  return 0
}

do_test walhook-1.1 {
  execsql { 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} { return 1 }
  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 checkpoint }
    return 0
  }
  execsql { CREATE TABLE t2(a, b) }
  file size test.db
} [expr 4*1024]

do_test walhook-1.5 {
  sqlite3_wal db2 test.db
  proc wal_hook {zDb nEntry} { 
    execsql { PRAGMA checkpoint } db2
    return 0
  }
  execsql { CREATE TABLE t3(a PRIMARY KEY, b) }
  file size test.db
} [expr 6*1024]

catch { db2 close }
catch { db close }
finish_test