[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/incrvacuum2.test

-# 2007 May 04
-#
-# 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.
-#
-#***********************************************************************
-# This file implements regression tests for SQLite library.  The
-# focus of this file is testing the incremental vacuum feature.
-#
-# $Id: incrvacuum2.test,v 1.6 2009/07/25 13:42:50 danielk1977 Exp $
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-# If this build of the library does not support auto-vacuum, omit this
-# whole file.
-ifcapable {!autovacuum || !pragma} {
-  finish_test
-  return
-}
-
-set testprefix incrvacuum2
-
-# Create a database in incremental vacuum mode that has many
-# pages on the freelist.
-#
-do_test incrvacuum2-1.1 {
-  execsql {
-    PRAGMA page_size=1024;
-    PRAGMA auto_vacuum=incremental;
-    CREATE TABLE t1(x);
-    INSERT INTO t1 VALUES(zeroblob(30000));
-    DELETE FROM t1;
-  }
-  file size test.db
-} {32768}
-
-# Vacuum off a single page.
-#
-do_test incrvacuum2-1.2 {
-  execsql {
-    PRAGMA incremental_vacuum(1);
-  }
-  file size test.db
-} {31744}
-
-# Vacuum off five pages
-#
-do_test incrvacuum2-1.3 {
-  execsql {
-    PRAGMA incremental_vacuum(5);
-  }
-  file size test.db
-} {26624}
-
-# Vacuum off all the rest
-#
-do_test incrvacuum2-1.4 {
-  execsql {
-    PRAGMA incremental_vacuum(1000);
-  }
-  file size test.db
-} {3072}
-
-# Make sure incremental vacuum works on attached databases.
-#
-ifcapable attach {
-  do_test incrvacuum2-2.1 {
-    forcedelete test2.db test2.db-journal
-    execsql {
-      ATTACH DATABASE 'test2.db' AS aux;
-      PRAGMA aux.auto_vacuum=incremental;
-      CREATE TABLE aux.t2(x);
-      INSERT INTO t2 VALUES(zeroblob(30000));
-      INSERT INTO t1 SELECT * FROM t2;
-      DELETE FROM t2;
-      DELETE FROM t1;
-    }
-    list [file size test.db] [file size test2.db]
-  } {32768 32768}
-  do_test incrvacuum2-2.2 {
-    execsql {
-      PRAGMA aux.incremental_vacuum(1)
-    }
-    list [file size test.db] [file size test2.db]
-  } {32768 31744}
-  do_test incrvacuum2-2.3 {
-    execsql {
-      PRAGMA aux.incremental_vacuum(5)
-    }
-    list [file size test.db] [file size test2.db]
-  } {32768 26624}
-  do_test incrvacuum2-2.4 {
-    execsql {
-      PRAGMA main.incremental_vacuum(5)
-    }
-    list [file size test.db] [file size test2.db]
-  } {27648 26624}
-  do_test incrvacuum2-2.5 {
-    execsql {
-      PRAGMA aux.incremental_vacuum
-    }
-    list [file size test.db] [file size test2.db]
-  } {27648 3072}
-  do_test incrvacuum2-2.6 {
-    execsql {
-      PRAGMA incremental_vacuum(1)
-    }
-    list [file size test.db] [file size test2.db]
-  } {26624 3072}
-}
-
-do_test incrvacuum2-3.1 {
-  execsql {
-    PRAGMA auto_vacuum = 'full';
-    BEGIN;
-    CREATE TABLE abc(a);
-    INSERT INTO abc VALUES(randstr(1500,1500));
-    COMMIT;
-  }
-} {}
-do_test incrvacuum2-3.2 {
-  execsql {
-    BEGIN;
-    DELETE FROM abc;
-    PRAGMA incremental_vacuum;
-    COMMIT;
-  }
-} {}
-
-integrity_check incrvacuum2-3.3
-
-ifcapable wal {
-  # At one point, when a specific page was being extracted from the b-tree
-  # free-list (e.g. during an incremental-vacuum), all trunk pages that
-  # occurred before the specific page in the free-list trunk were being
-  # written to the journal or wal file. This is not necessary. Only the 
-  # extracted page and the page that contains the pointer to it need to
-  # be journalled.
-  #
-  # This problem was fixed by [d03d63d77e] (just before 3.7.6 release).
-  #
-  # This test case builds a database containing many free pages. Then runs
-  # "PRAGMA incremental_vacuum(1)" until the db contains zero free pages.
-  # Each "PRAGMA incremental_vacuum(1)" should modify at most 4 pages. The
-  # worst case is when a trunk page is removed from the end of the db file.
-  # In this case pages written are:
-  #
-  #   1. The previous trunk page (that contains a pointer to the recycled
-  #      trunk page), and
-  #   2. The leaf page transformed into a trunk page to replace the recycled
-  #      page, and
-  #   3. The trunk page that contained a pointer to the leaf page used 
-  #      in (2), and
-  #   4. Page 1. Page 1 is always updated, even in WAL mode, since it contains
-  #      the "number of free-list pages" field.
-  #
-  db close
-  forcedelete test.db
-  sqlite3 db test.db
-
-  do_execsql_test 4.1 {
-    PRAGMA page_size = 512;
-    PRAGMA auto_vacuum = 2;
-    CREATE TABLE t1(x);
-    INSERT INTO t1 VALUES(randomblob(400));
-    INSERT INTO t1 SELECT * FROM t1;            --    2
-    INSERT INTO t1 SELECT * FROM t1;            --    4
-    INSERT INTO t1 SELECT * FROM t1;            --    8
-    INSERT INTO t1 SELECT * FROM t1;            --   16
-    INSERT INTO t1 SELECT * FROM t1;            --   32
-    INSERT INTO t1 SELECT * FROM t1;            --  128
-    INSERT INTO t1 SELECT * FROM t1;            --  256
-    INSERT INTO t1 SELECT * FROM t1;            --  512
-    INSERT INTO t1 SELECT * FROM t1;            -- 1024
-    INSERT INTO t1 SELECT * FROM t1;            -- 2048
-    INSERT INTO t1 SELECT * FROM t1;            -- 4096
-    INSERT INTO t1 SELECT * FROM t1;            -- 8192
-    DELETE FROM t1 WHERE oid>512;
-    DELETE FROM t1;
-  }
-
-  do_test 4.2 {
-    execsql { 
-      PRAGMA journal_mode = WAL;
-      PRAGMA incremental_vacuum(1);
-      PRAGMA wal_checkpoint;
-    }
-    file size test.db-wal
-  } [expr {32+2*(512+24)}]
-
-  do_test 4.3 {
-    db close
-    sqlite3 db test.db
-    set maxsz 0
-    while {[file size test.db] > [expr 512*3]} {
-      execsql { PRAGMA journal_mode = WAL }
-      execsql { PRAGMA wal_checkpoint }
-      execsql { PRAGMA incremental_vacuum(1) }
-      set newsz [file size test.db-wal]
-      if {$newsz>$maxsz} {set maxsz $newsz}
-    }
-    set maxsz 
-  } [expr {32+3*(512+24)}]
-}
-
-finish_test