60e4a74879
the zerodamage module if virtual tables are omitted from the build. FossilOrigin-Name: d2a5685b5e282488df382fc210e4f0d786259658
120 lines
3.2 KiB
Plaintext
120 lines
3.2 KiB
Plaintext
# 2011 December 21
|
|
#
|
|
# 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 tests of the SQLITE_IOCAP_POWERSAFE_OVERWRITE property
|
|
# and the SQLITE_FCNTL_POWERSAFE_OVERWRITE file-control for manipulating it.
|
|
#
|
|
# The name of this file comes from the fact that we used to call the
|
|
# POWERSAFE_OVERWRITE property ZERO_DAMAGE.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix wal5
|
|
|
|
ifcapable !vtab {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
# POWERSAFE_OVERWRITE defaults to true
|
|
#
|
|
do_test zerodamage-1.0 {
|
|
file_control_powersafe_overwrite db -1
|
|
} {0 1}
|
|
|
|
# Check the ability to turn zero-damage on and off.
|
|
#
|
|
do_test zerodamage-1.1 {
|
|
file_control_powersafe_overwrite db 0
|
|
file_control_powersafe_overwrite db -1
|
|
} {0 0}
|
|
do_test zerodamage-1.2 {
|
|
file_control_powersafe_overwrite db 1
|
|
file_control_powersafe_overwrite db -1
|
|
} {0 1}
|
|
|
|
# Run a transaction with zero-damage on, a small page size and a much larger
|
|
# sectorsize. Verify that the maximum journal size is small - that the
|
|
# rollback journal is not being padded.
|
|
#
|
|
do_test zerodamage-2.0 {
|
|
db close
|
|
testvfs tv -default 1
|
|
tv sectorsize 8192
|
|
sqlite3 db file:test.db?psow=TRUE -uri 1
|
|
unset -nocomplain ::max_journal_size
|
|
set ::max_journal_size 0
|
|
proc xDeleteCallback {method file args} {
|
|
set sz [file size $file]
|
|
if {$sz>$::max_journal_size} {set ::max_journal_size $sz}
|
|
}
|
|
tv filter xDelete
|
|
tv script xDeleteCallback
|
|
register_wholenumber_module db
|
|
db eval {
|
|
PRAGMA page_size=1024;
|
|
PRAGMA journal_mode=DELETE;
|
|
PRAGMA cache_size=5;
|
|
CREATE VIRTUAL TABLE nums USING wholenumber;
|
|
CREATE TABLE t1(x, y);
|
|
INSERT INTO t1 SELECT value, randomblob(100) FROM nums
|
|
WHERE value BETWEEN 1 AND 400;
|
|
}
|
|
set ::max_journal_size 0
|
|
db eval {
|
|
UPDATE t1 SET y=randomblob(50) WHERE x=123;
|
|
}
|
|
concat [file_control_powersafe_overwrite db -1] [set ::max_journal_size]
|
|
} {0 1 2576}
|
|
|
|
# Repeat the previous step with zero-damage turned off. This time the
|
|
# maximum rollback journal size should be much larger.
|
|
#
|
|
do_test zerodamage-2.1 {
|
|
set ::max_journal_size 0
|
|
db close
|
|
sqlite3 db file:test.db?psow=FALSE -uri 1
|
|
db eval {
|
|
UPDATE t1 SET y=randomblob(50) WHERE x=124;
|
|
}
|
|
concat [file_control_powersafe_overwrite db -1] [set ::max_journal_size]
|
|
} {0 0 24704}
|
|
|
|
# Run a WAL-mode transaction with POWERSAFE_OVERWRITE on to verify that the
|
|
# WAL file does not get too big.
|
|
#
|
|
do_test zerodamage-3.0 {
|
|
db eval {
|
|
PRAGMA journal_mode=WAL;
|
|
}
|
|
db close
|
|
sqlite3 db file:test.db?psow=TRUE -uri 1
|
|
db eval {
|
|
UPDATE t1 SET y=randomblob(50) WHERE x=124;
|
|
}
|
|
file size test.db-wal
|
|
} {1080}
|
|
|
|
# Repeat the previous with POWERSAFE_OVERWRITE off. Verify that the WAL file
|
|
# is padded.
|
|
#
|
|
do_test zerodamage-3.1 {
|
|
db close
|
|
sqlite3 db file:test.db?psow=FALSE -uri 1
|
|
db eval {
|
|
UPDATE t1 SET y=randomblob(50) WHERE x=124;
|
|
}
|
|
file size test.db-wal
|
|
} {8416}
|
|
|
|
finish_test
|