[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/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||!compound {
-  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 $stats(page)
-}
-
-if {[permutation] == ""} { 
-  do_test cache-1.1 { pager_cache_size db } {0}
-}
-
-do_test cache-1.2 {
-  execsql {
-    PRAGMA auto_vacuum=OFF;
-    CREATE TABLE abc(a, b, c);
-    INSERT INTO abc VALUES(1, 2, 3);
-  }
-  pager_cache_size db
-} {2}
-
-# At one point, repeatedly locking and unlocking the cache was causing
-# a resource leak of one page per repetition. The page wasn't actually
-# leaked, but would not be reused until the pager-cache was full (i.e. 
-# 2000 pages by default).
-#
-# This tests that once the pager-cache is initialized, it can be locked
-# and unlocked repeatedly without internally allocating any new pages.
-#
-set cache_size [pager_cache_size db]
-for {set ii 0} {$ii < 10} {incr ii} {
-  do_test cache-1.3.$ii {
-    execsql {SELECT * FROM abc}
-    pager_cache_size db
-  } $::cache_size
-}
-
-#-------------------------------------------------------------------------
-# This block of tests checks that it is possible to set the cache_size of a
-# database to a small (< 10) value. More specifically:
-#
-#   cache-2.1.*: Test that "PRAGMA cache_size" appears to work with small 
-#                values.
-#   cache-2.2.*: Test that "PRAGMA main.cache_size" appears to work with 
-#                small values.
-#   cache-2.3.*: Test cache_size=1 correctly spills/flushes the cache. 
-#   cache-2.4.*: Test cache_size=0 correctly spills/flushes the cache. 
-#
-#
-db_delete_and_reopen
-do_execsql_test cache-2.0 {
-  PRAGMA auto_vacuum=OFF;
-  PRAGMA journal_mode=DELETE;
-  CREATE TABLE t1(a, b);
-  CREATE TABLE t2(c, d);
-  INSERT INTO t1 VALUES('x', 'y');
-  INSERT INTO t2 VALUES('i', 'j');
-} {delete}
-
-for {set i 0} {$i < 20} {incr i} {
-  do_execsql_test cache-2.1.$i.1 "PRAGMA cache_size = $i"
-  do_execsql_test cache-2.1.$i.2 "PRAGMA cache_size" $i
-  do_execsql_test cache-2.1.$i.3 "SELECT * FROM t1" {x y}
-  do_execsql_test cache-2.1.$i.4 "PRAGMA cache_size" $i
-}
-for {set i 0} {$i < 20} {incr i} {
-  do_execsql_test cache-2.2.$i.1 "PRAGMA main.cache_size = $i"
-  do_execsql_test cache-2.2.$i.2 "PRAGMA main.cache_size" $i
-  do_execsql_test cache-2.2.$i.3 "SELECT * FROM t1" {x y}
-  do_execsql_test cache-2.2.$i.4 "PRAGMA main.cache_size" $i
-}
-
-# Tests for cache_size = 1.
-#
-do_execsql_test cache-2.3.1 {
-  PRAGMA cache_size = 1;
-  BEGIN;
-    INSERT INTO t1 VALUES(1, 2);
-    PRAGMA lock_status;
-} {main reserved temp closed}
-do_test cache-2.3.2 { pager_cache_size db } 2
-do_execsql_test cache-2.3.3 {
-    INSERT INTO t2 VALUES(1, 2);
-    PRAGMA lock_status;
-} {main exclusive temp closed}
-do_test cache-2.3.4 { pager_cache_size db } 2
-do_execsql_test cache-2.3.5 COMMIT
-do_test cache-2.3.6 { pager_cache_size db } 1
-
-do_execsql_test cache-2.3.7 {
-  SELECT * FROM t1 UNION SELECT * FROM t2;
-} {1 2 i j x y}
-do_test cache-2.3.8 { pager_cache_size db } 1
-
-# Tests for cache_size = 0.
-#
-do_execsql_test cache-2.4.1 {
-  PRAGMA cache_size = 0;
-  BEGIN;
-    INSERT INTO t1 VALUES(1, 2);
-    PRAGMA lock_status;
-} {main reserved temp closed}
-do_test cache-2.4.2 { pager_cache_size db } 2
-do_execsql_test cache-2.4.3 {
-    INSERT INTO t2 VALUES(1, 2);
-    PRAGMA lock_status;
-} {main exclusive temp closed}
-do_test cache-2.4.4 { pager_cache_size db } 2
-do_execsql_test cache-2.4.5 COMMIT
-
-do_test cache-2.4.6 { pager_cache_size db } 0
-do_execsql_test cache-2.4.7 {
-  SELECT * FROM t1 UNION SELECT * FROM t2;
-} {1 2 i j x y}
-do_test cache-2.4.8 { pager_cache_size db } 0
-
-sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
-finish_test