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    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 1.1.1.1 2012/02/21 17:04:16 misho Exp $
   15: 
   16: set testdir [file dirname $argv0]
   17: source $testdir/tester.tcl
   18: 
   19: # Set up a pcache memory pool so that we can easily track how many
   20: # pages are being used for cache.
   21: #
   22: do_test pcache2-1.1 {
   23:   db close
   24:   sqlite3_reset_auto_extension
   25:   sqlite3_shutdown
   26:   sqlite3_config_pagecache 6000 100
   27:   sqlite3_initialize
   28:   autoinstall_test_functions
   29:   sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1
   30:   sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0
   31: } {0 0 0}
   32: 
   33: # Open up two database connections to separate files.
   34: #
   35: do_test pcache2-1.2 {
   36:   forcedelete test.db test.db-journal
   37:   sqlite3 db test.db
   38:   db eval {PRAGMA cache_size=10}
   39:   lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1
   40: } {2}
   41: do_test pcache2-1.3 {
   42:   forcedelete test2.db test2.db-journal
   43:   sqlite3 db2 test2.db
   44:   db2 eval {PRAGMA cache_size=50}
   45:   lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1
   46: } {4}
   47: 
   48: 
   49: # Make lots of changes on the first connection.  Verify that the
   50: # page cache usage does not grow to consume the page space set aside
   51: # for the second connection.
   52: #
   53: do_test pcache2-1.4 {
   54:   db eval {
   55:      CREATE TABLE t1(a,b);
   56:      CREATE TABLE t2(x,y);
   57:      INSERT INTO t1 VALUES(1, zeroblob(800));
   58:      INSERT INTO t1 VALUES(2, zeroblob(800));
   59:      INSERT INTO t2 SELECT * FROM t1;
   60:      INSERT INTO t1 SELECT x+2, y FROM t2;
   61:      INSERT INTO t2 SELECT a+10, b FROM t1;
   62:      INSERT INTO t1 SELECT x+10, y FROM t2;
   63:      INSERT INTO t2 SELECT a+100, b FROM t1;
   64:      INSERT INTO t1 SELECT x+100, y FROM t2;
   65:      INSERT INTO t2 SELECT a+1000, b FROM t1;
   66:      INSERT INTO t1 SELECT x+1000, y FROM t2;
   67:   }
   68:   sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0
   69: } {0 13 13}
   70: 
   71: db close
   72: catch {db2 close}
   73: sqlite3_reset_auto_extension
   74: sqlite3_shutdown
   75: sqlite3_config_pagecache 0 0
   76: sqlite3_initialize
   77: autoinstall_test_functions
   78: 
   79: finish_test