# 2001 October 12 # # 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 for correct handling of I/O errors # such as writes failing because the disk is full. # # The tests in this file use special facilities that are only # available in the SQLite test fixture. # # $Id: incrvacuum_ioerr.test,v 1.5 2008/05/09 18:03:28 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # If this build of the library does not support auto-vacuum, omit this # whole file. ifcapable {!autovacuum} { finish_test return } do_ioerr_test incrvacuum-ioerr-1 -cksum 1 -sqlprep { PRAGMA auto_vacuum = 'incremental'; CREATE TABLE abc(a); INSERT INTO abc VALUES(randstr(1500,1500)); } -sqlbody { BEGIN; CREATE TABLE abc2(a); DELETE FROM abc; PRAGMA incremental_vacuum; COMMIT; } # do_ioerr_test incrvacuum-ioerr-3 -start 1 -cksum 1 -tclprep { # db eval { # PRAGMA auto_vacuum = 'full'; # PRAGMA cache_size = 10; # BEGIN; # CREATE TABLE abc(a, UNIQUE(a)); # } # for {set ii 0} {$ii < 25} {incr ii} { # db eval {INSERT INTO abc VALUES(randstr(1500,1500))} # } # db eval COMMIT # } -sqlbody { # BEGIN; # DELETE FROM abc WHERE (oid%3)==0; # INSERT INTO abc SELECT a || '1234567890' FROM abc WHERE oid%2; # CREATE INDEX abc_i ON abc(a); # DELETE FROM abc WHERE (oid%2)==0; # DROP INDEX abc_i; # COMMIT; # } do_ioerr_test incrvacuum-ioerr-2 -start 1 -cksum 1 -tclprep { db eval { PRAGMA auto_vacuum = 'full'; PRAGMA cache_size = 10; BEGIN; CREATE TABLE abc(a, UNIQUE(a)); } for {set ii 0} {$ii < 25} {incr ii} { db eval {INSERT INTO abc VALUES(randstr(1500,1500))} } db eval COMMIT } -sqlbody { BEGIN; PRAGMA incremental_vacuum; DELETE FROM abc WHERE (oid%3)==0; PRAGMA incremental_vacuum; INSERT INTO abc SELECT a || '1234567890' FROM abc WHERE oid%2; PRAGMA incremental_vacuum; CREATE INDEX abc_i ON abc(a); DELETE FROM abc WHERE (oid%2)==0; PRAGMA incremental_vacuum; DROP INDEX abc_i; PRAGMA incremental_vacuum; COMMIT; } do_ioerr_test incrvacuum-ioerr-3 -start 1 -cksum 1 -tclprep { db eval { PRAGMA auto_vacuum = 'incremental'; BEGIN; CREATE TABLE a(i integer, b blob); INSERT INTO a VALUES(1, randstr(1500,1500)); INSERT INTO a VALUES(2, randstr(1500,1500)); } db eval COMMIT db eval {DELETE FROM a WHERE oid} } -sqlbody { PRAGMA incremental_vacuum(5); } -cleanup { sqlite3 db test.db integrity_check incrvacuum-ioerr-2.$n.integritycheck db close } ifcapable shared_cache { catch { db close } file delete -force test.db set ::enable_shared_cache [sqlite3_enable_shared_cache 1] # Create two connections to a single shared-cache: # sqlite3 db1 test.db sqlite3 db2 test.db # Create a database with around 20 free pages. # do_test incrvacuum-ioerr-4.0 { execsql { PRAGMA page_size = 1024; PRAGMA locking_mode = exclusive; PRAGMA auto_vacuum = 'incremental'; BEGIN; CREATE TABLE a(i integer, b blob); } db1 for {set ii 0} {$ii < 20} {incr ii} { execsql { INSERT INTO a VALUES($ii, randstr(800,1500)); } db1 } execsql COMMIT db1 execsql {DELETE FROM a WHERE oid} db1 } {} set ::rc 1 for {set iTest 1} {$::rc && $iTest<2000} {incr iTest} { # Figure out how big the database is and how many free pages it # has before running incremental-vacuum. # set nPage [expr {[file size test.db]/1024}] set nFree [execsql {pragma freelist_count} db1] # Now run incremental-vacuum to vacuum 5 pages from the db file. # The iTest'th I/O call is set to fail. # set ::sqlite_io_error_pending $iTest set ::sqlite_io_error_persist 1 do_test incrvacuum-ioerr-4.$iTest.1 { set ::rc [catch {execsql {pragma incremental_vacuum(5)} db1} msg] expr {$::rc==0 || $msg eq "disk I/O error"} } {1} set ::sqlite_io_error_pending 0 set ::sqlite_io_error_persist 0 set ::sqlite_io_error_hit 0 set ::sqlite_io_error_hardhit 0 set nFree2 [execsql {pragma freelist_count} db1] set nPage2 [expr {[file size test.db]/1024}] do_test incrvacuum-ioerr-4.$iTest.2 { set shrink [expr {$nPage-$nPage2}] expr {$shrink==0 || $shrink==5} } {1} do_test incrvacuum-ioerr-4.$iTest.3 { expr {$nPage - $nPage2} } [expr {$nFree - $nFree2}] } # Close the two database connections and restore the default # shared-cache mode setting. # db1 close db2 close sqlite3_enable_shared_cache $::enable_shared_cache } finish_test