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# 2008 August 01
#
# 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.
#
#***********************************************************************
#
# Tests for the lookaside memory allocator.
#
# $Id: lookaside.test,v 1.4 2008/08/05 17:53:24 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
catch {db close}
sqlite3_shutdown
sqlite3_config_pagecache 0 0
sqlite3_config_scratch 0 0
sqlite3_initialize
sqlite3 db test.db
# Make sure sqlite3_db_config() and sqlite3_db_status are working.
#
do_test lookaside-1.1 {
catch {sqlite3_config_error db}
} {0}
do_test lookaside-1.2 {
sqlite3_db_config_lookaside db 1 20 20
} {0}
do_test lookaside-1.3 {
sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
} {0 0 0}
do_test lookaside-1.4 {
db eval {CREATE TABLE t1(x);}
foreach {x y z} [sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0] break
expr {$x==0 && $y<$z && $z==20}
} {1}
do_test lookaside-1.5 {
foreach {x y z} [sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 1] break
expr {$x==0 && $y<$z && $z==20}
} {1}
do_test lookaside-1.6 {
foreach {x y z} [sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0] break
expr {$x==0 && $y==$z && $y<20}
} {1}
do_test lookaside-1.7 {
db cache flush
foreach {x y z} [sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0] break
expr {$x==0 && $y==0 && $z<20}
} {1}
do_test lookaside-1.8 {
db cache flush
foreach {x y z} [sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 1] break
expr {$x==0 && $y==0 && $z<20}
} {1}
do_test lookaside-1.9 {
db cache flush
sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
} {0 0 0}
do_test lookaside-2.1 {
sqlite3_db_config_lookaside db 0 100 1000
} {0}
do_test lookaside-2.2 {
db eval {CREATE TABLE t2(x);}
foreach {x y z} [sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0] break
expr {$x==0 && $y<$z && $z>10 && $z<100}
} {1}
do_test lookaside-2.3 {
sqlite3_db_config_lookaside db 0 50 50
} {5} ;# SQLITE_BUSY
do_test lookaside-2.4 {
db cache flush
sqlite3_db_config_lookaside db 0 50 50
} {0} ;# SQLITE_OK
# sqlite3_db_status() with an invalid verb returns an error.
#
do_test lookaside-3.1 {
sqlite3_db_status db 99999 0
} {1 0 0}
# Test that an invalid verb on sqlite3_config() is detected and
# reported as an error.
#
do_test lookaside-4.1 {
db close
sqlite3_shutdown
catch sqlite3_config_error
} {0}
sqlite3_initialize
finish_test
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