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sqlite/test/wal2recover.test
drh 76e67700e0 Merge the latest trunk enhancements into the wal2 branch.
FossilOrigin-Name: eac582056fcf6210bf90576cce30c087503b864dc8d558f2998f04b3d1bfb569
2024-08-01 00:38:59 +00:00

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# 2018 December 13
#
# 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 operation of the library in
# "PRAGMA journal_mode=WAL2" mode.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/lock_common.tcl
source $testdir/malloc_common.tcl
source $testdir/wal_common.tcl
set testprefix wal2recover
ifcapable !wal {finish_test ; return }
proc db_copy {from to} {
forcecopy $from $to
forcecopy ${from}-wal ${to}-wal
forcecopy ${from}-wal2 ${to}-wal2
}
do_execsql_test 1.0 {
CREATE TABLE t1(a, b, c);
CREATE INDEX t1a ON t1(a);
CREATE INDEX t1b ON t1(b);
CREATE INDEX t1c ON t1(c);
PRAGMA journal_mode = wal2;
PRAGMA journal_size_limit = 15000;
PRAGMA wal_autocheckpoint = 0;
} {wal2 15000 0}
do_test 1.1 {
for {set i 1} {$i <= 1000} {incr i} {
execsql { INSERT INTO t1 VALUES(random(), random(), random()) }
db_copy test.db test.db2
sqlite3 db2 test.db
set res [execsql {
SELECT count(*) FROM t1;
PRAGMA integrity_check;
} db2]
db2 close
if {$res != [list $i ok]} {
error "failure on iteration $i"
}
}
set {} {}
} {}
#--------------------------------------------------------------------------
reset_db
do_execsql_test 2.0 {
CREATE TABLE t1(x UNIQUE);
CREATE TABLE t2(x UNIQUE);
PRAGMA journal_mode = wal2;
PRAGMA journal_size_limit = 10000;
PRAGMA wal_autocheckpoint = 0;
BEGIN;
INSERT INTO t1 VALUES(randomblob(4000));
INSERT INTO t1 VALUES(randomblob(4000));
INSERT INTO t1 VALUES(randomblob(4000));
COMMIT;
BEGIN;
INSERT INTO t2 VALUES(randomblob(4000));
INSERT INTO t2 VALUES(randomblob(4000));
INSERT INTO t2 VALUES(randomblob(4000));
COMMIT;
} {wal2 10000 0}
do_test 2.0.1 {
list [file size test.db] [file size test.db-wal] [file size test.db-wal2]
} {5120 28328 28328}
# Test recovery with both wal files intact.
#
do_test 2.1 {
db_copy test.db test.db2
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
PRAGMA integrity_check;
} db2
} {3 3 ok}
do_test 2.2 {
db2 close
db_copy test.db test.db2
hexio_write test.db2-wal 16 12345678
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
} db2
} {0 3}
do_test 2.3 {
db2 close
db_copy test.db test.db2
hexio_write test.db2-wal2 16 12345678
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
PRAGMA integrity_check;
} db2
} {3 0 ok}
do_test 2.4 {
db2 close
db_copy test.db test.db2
forcecopy test.db-wal test.db2-wal2
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
PRAGMA integrity_check;
} db2
} {3 0 ok}
do_test 2.5 {
db2 close
db_copy test.db test.db2
forcecopy test.db-wal test.db2-wal2
forcecopy test.db-wal2 test.db2-wal
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
PRAGMA integrity_check;
} db2
} {3 3 ok}
do_test 2.6 {
db2 close
db_copy test.db test.db2
forcecopy test.db-wal test.db2-wal2
close [open test.db-wal w]
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
PRAGMA integrity_check;
} db2
} {3 0 ok}
do_test 2.7 {
db2 close
db_copy test.db test.db2
forcedelete test.db2-wal
sqlite3 db2 test.db2
execsql {
SELECT count(*) FROM t1;
SELECT count(*) FROM t2;
PRAGMA integrity_check;
} db2
} {0 0 ok}
db2 close
#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 3.0 {
CREATE TABLE t1(a TEXT, b TEXT, c TEXT);
CREATE INDEX t1a ON t1(a);
CREATE INDEX t1b ON t1(b);
CREATE INDEX t1c ON t1(c);
PRAGMA journal_mode = wal2;
PRAGMA journal_size_limit = 10000;
PRAGMA wal_autocheckpoint = 0;
PRAGMA cache_size = 5;
} {wal2 10000 0}
do_execsql_test 3.1 {
WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s where i < 200)
INSERT INTO t1 SELECT i, i, i FROM s;
INSERT INTO t1 VALUES(201, 201, 201);
} {}
do_test 3.2 {
list [file size test.db] [file size test.db-wal] [file size test.db-wal2]
} {5120 15752 4224}
do_test 3.3 {
forcecopy test.db test.db2
forcecopy test.db-wal test.db2-wal
forcecopy test.db-wal2 test.db2-wal2
sqlite3 db2 test.db2
execsql {
PRAGMA journal_size_limit = 10000;
PRAGMA wal_autocheckpoint = 0;
PRAGMA cache_size = 5;
BEGIN;
WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s where i < 200)
INSERT INTO t1 SELECT i, i, i FROM s;
} db2
list [file size test.db2] [file size test.db2-wal] [file size test.db2-wal2]
} {5120 15752 23088}
if {$tcl_platform(platform)!="windows"} {
# These cannot be run under windows, as the *-shm file may not be read
# while it is locked by the database connection.
do_test 3.4 {
set fd [open test.db2-shm]
fconfigure $fd -translation binary
set data [read $fd]
close $fd
set fd [open test.db-shm w]
fconfigure $fd -translation binary
puts -nonewline $fd $data
close $fd
execsql {
WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s where i < 10)
INSERT INTO t1 SELECT i, i, i FROM s;
SELECT count(*) FROM t1;
PRAGMA integrity_check;
}
} {211 ok}
do_test 3.5 {
list [file size test.db] [file size test.db-wal] [file size test.db-wal2]
} {5120 15752 18896}
}
#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 4.0 {
PRAGMA journal_mode = wal2;
CREATE TABLE xyz(x, y, z);
INSERT INTO xyz VALUES('x', 'y', 'z');
} {wal2}
db close
do_test 4.1 {
close [open test.db-wal w]
file mkdir test.db-wal2
sqlite3 db test.db
catchsql { SELECT * FROM xyz }
} {1 {unable to open database file}}
db close
file delete test.db-wal2
db2 close
do_test 4.2 {
sqlite3 db test.db
execsql {
INSERT INTO xyz VALUES('a', 'b', 'c');
}
forcecopy test.db test.db2
forcecopy test.db-wal test.db2-wal
forcedelete test.db2-wal2
file mkdir test.db2-wal2
sqlite3 db2 test.db2
catchsql { SELECT * FROM xyz } db2
} {1 {unable to open database file}}
db2 close
file delete test.db2-wal2
finish_test