Annotation of embedaddon/sqlite3/test/incrvacuum2.test, revision 1.1
1.1 ! misho 1: # 2007 May 04
! 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: # This file implements regression tests for SQLite library. The
! 12: # focus of this file is testing the incremental vacuum feature.
! 13: #
! 14: # $Id: incrvacuum2.test,v 1.6 2009/07/25 13:42:50 danielk1977 Exp $
! 15:
! 16: set testdir [file dirname $argv0]
! 17: source $testdir/tester.tcl
! 18:
! 19: # If this build of the library does not support auto-vacuum, omit this
! 20: # whole file.
! 21: ifcapable {!autovacuum || !pragma} {
! 22: finish_test
! 23: return
! 24: }
! 25:
! 26: set testprefix incrvacuum2
! 27:
! 28: # Create a database in incremental vacuum mode that has many
! 29: # pages on the freelist.
! 30: #
! 31: do_test incrvacuum2-1.1 {
! 32: execsql {
! 33: PRAGMA page_size=1024;
! 34: PRAGMA auto_vacuum=incremental;
! 35: CREATE TABLE t1(x);
! 36: INSERT INTO t1 VALUES(zeroblob(30000));
! 37: DELETE FROM t1;
! 38: }
! 39: file size test.db
! 40: } {32768}
! 41:
! 42: # Vacuum off a single page.
! 43: #
! 44: do_test incrvacuum2-1.2 {
! 45: execsql {
! 46: PRAGMA incremental_vacuum(1);
! 47: }
! 48: file size test.db
! 49: } {31744}
! 50:
! 51: # Vacuum off five pages
! 52: #
! 53: do_test incrvacuum2-1.3 {
! 54: execsql {
! 55: PRAGMA incremental_vacuum(5);
! 56: }
! 57: file size test.db
! 58: } {26624}
! 59:
! 60: # Vacuum off all the rest
! 61: #
! 62: do_test incrvacuum2-1.4 {
! 63: execsql {
! 64: PRAGMA incremental_vacuum(1000);
! 65: }
! 66: file size test.db
! 67: } {3072}
! 68:
! 69: # Make sure incremental vacuum works on attached databases.
! 70: #
! 71: ifcapable attach {
! 72: do_test incrvacuum2-2.1 {
! 73: forcedelete test2.db test2.db-journal
! 74: execsql {
! 75: ATTACH DATABASE 'test2.db' AS aux;
! 76: PRAGMA aux.auto_vacuum=incremental;
! 77: CREATE TABLE aux.t2(x);
! 78: INSERT INTO t2 VALUES(zeroblob(30000));
! 79: INSERT INTO t1 SELECT * FROM t2;
! 80: DELETE FROM t2;
! 81: DELETE FROM t1;
! 82: }
! 83: list [file size test.db] [file size test2.db]
! 84: } {32768 32768}
! 85: do_test incrvacuum2-2.2 {
! 86: execsql {
! 87: PRAGMA aux.incremental_vacuum(1)
! 88: }
! 89: list [file size test.db] [file size test2.db]
! 90: } {32768 31744}
! 91: do_test incrvacuum2-2.3 {
! 92: execsql {
! 93: PRAGMA aux.incremental_vacuum(5)
! 94: }
! 95: list [file size test.db] [file size test2.db]
! 96: } {32768 26624}
! 97: do_test incrvacuum2-2.4 {
! 98: execsql {
! 99: PRAGMA main.incremental_vacuum(5)
! 100: }
! 101: list [file size test.db] [file size test2.db]
! 102: } {27648 26624}
! 103: do_test incrvacuum2-2.5 {
! 104: execsql {
! 105: PRAGMA aux.incremental_vacuum
! 106: }
! 107: list [file size test.db] [file size test2.db]
! 108: } {27648 3072}
! 109: do_test incrvacuum2-2.6 {
! 110: execsql {
! 111: PRAGMA incremental_vacuum(1)
! 112: }
! 113: list [file size test.db] [file size test2.db]
! 114: } {26624 3072}
! 115: }
! 116:
! 117: do_test incrvacuum2-3.1 {
! 118: execsql {
! 119: PRAGMA auto_vacuum = 'full';
! 120: BEGIN;
! 121: CREATE TABLE abc(a);
! 122: INSERT INTO abc VALUES(randstr(1500,1500));
! 123: COMMIT;
! 124: }
! 125: } {}
! 126: do_test incrvacuum2-3.2 {
! 127: execsql {
! 128: BEGIN;
! 129: DELETE FROM abc;
! 130: PRAGMA incremental_vacuum;
! 131: COMMIT;
! 132: }
! 133: } {}
! 134:
! 135: integrity_check incrvacuum2-3.3
! 136:
! 137: ifcapable wal {
! 138: # At one point, when a specific page was being extracted from the b-tree
! 139: # free-list (e.g. during an incremental-vacuum), all trunk pages that
! 140: # occurred before the specific page in the free-list trunk were being
! 141: # written to the journal or wal file. This is not necessary. Only the
! 142: # extracted page and the page that contains the pointer to it need to
! 143: # be journalled.
! 144: #
! 145: # This problem was fixed by [d03d63d77e] (just before 3.7.6 release).
! 146: #
! 147: # This test case builds a database containing many free pages. Then runs
! 148: # "PRAGMA incremental_vacuum(1)" until the db contains zero free pages.
! 149: # Each "PRAGMA incremental_vacuum(1)" should modify at most 4 pages. The
! 150: # worst case is when a trunk page is removed from the end of the db file.
! 151: # In this case pages written are:
! 152: #
! 153: # 1. The previous trunk page (that contains a pointer to the recycled
! 154: # trunk page), and
! 155: # 2. The leaf page transformed into a trunk page to replace the recycled
! 156: # page, and
! 157: # 3. The trunk page that contained a pointer to the leaf page used
! 158: # in (2), and
! 159: # 4. Page 1. Page 1 is always updated, even in WAL mode, since it contains
! 160: # the "number of free-list pages" field.
! 161: #
! 162: db close
! 163: forcedelete test.db
! 164: sqlite3 db test.db
! 165:
! 166: do_execsql_test 4.1 {
! 167: PRAGMA page_size = 512;
! 168: PRAGMA auto_vacuum = 2;
! 169: CREATE TABLE t1(x);
! 170: INSERT INTO t1 VALUES(randomblob(400));
! 171: INSERT INTO t1 SELECT * FROM t1; -- 2
! 172: INSERT INTO t1 SELECT * FROM t1; -- 4
! 173: INSERT INTO t1 SELECT * FROM t1; -- 8
! 174: INSERT INTO t1 SELECT * FROM t1; -- 16
! 175: INSERT INTO t1 SELECT * FROM t1; -- 32
! 176: INSERT INTO t1 SELECT * FROM t1; -- 128
! 177: INSERT INTO t1 SELECT * FROM t1; -- 256
! 178: INSERT INTO t1 SELECT * FROM t1; -- 512
! 179: INSERT INTO t1 SELECT * FROM t1; -- 1024
! 180: INSERT INTO t1 SELECT * FROM t1; -- 2048
! 181: INSERT INTO t1 SELECT * FROM t1; -- 4096
! 182: INSERT INTO t1 SELECT * FROM t1; -- 8192
! 183: DELETE FROM t1 WHERE oid>512;
! 184: DELETE FROM t1;
! 185: }
! 186:
! 187: do_test 4.2 {
! 188: execsql {
! 189: PRAGMA journal_mode = WAL;
! 190: PRAGMA incremental_vacuum(1);
! 191: PRAGMA wal_checkpoint;
! 192: }
! 193: file size test.db-wal
! 194: } [expr {32+2*(512+24)}]
! 195:
! 196: do_test 4.3 {
! 197: db close
! 198: sqlite3 db test.db
! 199: set maxsz 0
! 200: while {[file size test.db] > [expr 512*3]} {
! 201: execsql { PRAGMA journal_mode = WAL }
! 202: execsql { PRAGMA wal_checkpoint }
! 203: execsql { PRAGMA incremental_vacuum(1) }
! 204: set newsz [file size test.db-wal]
! 205: if {$newsz>$maxsz} {set maxsz $newsz}
! 206: }
! 207: set maxsz
! 208: } [expr {32+3*(512+24)}]
! 209: }
! 210:
! 211: finish_test
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to incrvacuum2.test CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test