1# 2008 September 15 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# 12# This file is focused on testing the pcache module. 13# 14# $Id: pcache2.test,v 1.2 2008/10/14 19:21:52 danielk1977 Exp $ 15 16set testdir [file dirname $argv0] 17source $testdir/tester.tcl 18 19 20# Set up a pcache memory pool so that we can easily track how many 21# pages are being used for cache. 22# 23do_test pcache2-1.1 { 24 db close 25 sqlite3_shutdown 26 sqlite3_config_pagecache 6000 100 27 sqlite3_initialize 28 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1 29 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0 30} {0 0 0} 31 32# Open up two database connections to separate files. 33# 34do_test pcache2-1.2 { 35 file delete -force test.db test.db-journal 36 sqlite3 db test.db 37 db eval {PRAGMA cache_size=10} 38 lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1 39} {2} 40do_test pcache2-1.3 { 41 file delete -force test2.db test2.db-journal 42 sqlite3 db2 test2.db 43 db2 eval {PRAGMA cache_size=50} 44 lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1 45} {4} 46 47# Make lots of changes on the first connection. Verify that the 48# page cache usage does not grow to consume the page space set aside 49# for the second connection. 50# 51do_test pcache2-1.4 { 52 db eval { 53 CREATE TABLE t1(a,b); 54 CREATE TABLE t2(x,y); 55 INSERT INTO t1 VALUES(1, zeroblob(800)); 56 INSERT INTO t1 VALUES(2, zeroblob(800)); 57 INSERT INTO t2 SELECT * FROM t1; 58 INSERT INTO t1 SELECT x+2, y FROM t2; 59 INSERT INTO t2 SELECT a+10, b FROM t1; 60 INSERT INTO t1 SELECT x+10, y FROM t2; 61 INSERT INTO t2 SELECT a+100, b FROM t1; 62 INSERT INTO t1 SELECT x+100, y FROM t2; 63 INSERT INTO t2 SELECT a+1000, b FROM t1; 64 INSERT INTO t1 SELECT x+1000, y FROM t2; 65 } 66 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0 67} {0 13 13} 68 69db close 70catch {db2 close} 71sqlite3_shutdown 72sqlite3_config_pagecache 0 0 73finish_test 74