Move bundled copy of sqlite one level deeper to better separate it...

third_party/sqlite/test/cache.test

-# 2007 March 24
-#
-# 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.
-#
-#***********************************************************************
-#
-# $Id: cache.test,v 1.4 2007/08/22 02:56:44 drh Exp $
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-ifcapable {!pager_pragmas} {
-  finish_test
-  return
-}
-sqlite3_soft_heap_limit 0
-
-proc pager_cache_size {db} {
-  set bt [btree_from_db $db]
-  db_enter $db
-  array set stats [btree_pager_stats $bt]
-  db_leave $db
-  return $stats(page)
-}
-
-do_test cache-1.1 {
-  pager_cache_size db
-} {0}
-
-do_test cache-1.2 {
-  execsql {
-    PRAGMA auto_vacuum=OFF;
-    CREATE TABLE abc(a, b, c);
-    INSERT INTO abc VALUES(1, 2, 3);
-  }
-  pager_cache_size db
-} {2}
-
-# At one point, repeatedly locking and unlocking the cache was causing
-# a resource leak of one page per repetition. The page wasn't actually
-# leaked, but would not be reused until the pager-cache was full (i.e. 
-# 2000 pages by default).
-#
-# This tests that once the pager-cache is initialised, it can be locked
-# and unlocked repeatedly without internally allocating any new pages.
-#
-set cache_size [pager_cache_size db]
-for {set ii 0} {$ii < 10} {incr ii} {
-
-  do_test cache-1.3.$ii {
-    execsql {SELECT * FROM abc}
-    pager_cache_size db
-  } $::cache_size
-
-}
-sqlite3_soft_heap_limit $soft_limit
-
-finish_test