302 lines
8.4 KiB
Plaintext
302 lines
8.4 KiB
Plaintext
# 2009 January 8
|
|
#
|
|
# 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 test verifies a couple of specific potential data corruption
|
|
# scenarios involving crashes or power failures.
|
|
#
|
|
# Later: Also, some other specific scenarios required for coverage
|
|
# testing that do not lead to corruption.
|
|
#
|
|
# $Id: crash8.test,v 1.2 2009/01/09 10:49:14 danielk1977 Exp $
|
|
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
ifcapable !crashtest {
|
|
finish_test
|
|
return
|
|
}
|
|
|
|
do_test crash8-1.1 {
|
|
execsql {
|
|
CREATE TABLE t1(a, b);
|
|
CREATE INDEX i1 ON t1(a, b);
|
|
INSERT INTO t1 VALUES(1, randstr(1000,1000));
|
|
INSERT INTO t1 VALUES(2, randstr(1000,1000));
|
|
INSERT INTO t1 VALUES(3, randstr(1000,1000));
|
|
INSERT INTO t1 VALUES(4, randstr(1000,1000));
|
|
INSERT INTO t1 VALUES(5, randstr(1000,1000));
|
|
INSERT INTO t1 VALUES(6, randstr(1000,1000));
|
|
CREATE TABLE t2(a, b);
|
|
CREATE TABLE t3(a, b);
|
|
CREATE TABLE t4(a, b);
|
|
CREATE TABLE t5(a, b);
|
|
CREATE TABLE t6(a, b);
|
|
CREATE TABLE t7(a, b);
|
|
CREATE TABLE t8(a, b);
|
|
CREATE TABLE t9(a, b);
|
|
CREATE TABLE t10(a, b);
|
|
PRAGMA integrity_check
|
|
}
|
|
} {ok}
|
|
|
|
|
|
# Potential corruption scenario 1. A second process opens the database
|
|
# and modifies a large portion of it. It then opens a second transaction
|
|
# and modifies a small part of the database, but crashes before it commits
|
|
# the transaction.
|
|
#
|
|
# When the first process accessed the database again, it was rolling back
|
|
# the aborted transaction, but was not purging its in-memory cache (which
|
|
# was loaded before the second process made its first, successful,
|
|
# modification). Producing an inconsistent cache.
|
|
#
|
|
do_test crash8-1.2 {
|
|
crashsql -delay 2 -file test.db {
|
|
PRAGMA cache_size = 10;
|
|
UPDATE t1 SET b = randstr(1000,1000);
|
|
INSERT INTO t9 VALUES(1, 2);
|
|
}
|
|
} {1 {child process exited abnormally}}
|
|
do_test crash8-1.3 {
|
|
execsql {PRAGMA integrity_check}
|
|
} {ok}
|
|
|
|
# Potential corruption scenario 2. The second process, operating in
|
|
# persistent-journal mode, makes a large change to the database file
|
|
# with a small in-memory cache. Such that more than one journal-header
|
|
# was written to the file. It then opens a second transaction and makes
|
|
# a smaller change that requires only a single journal-header to be
|
|
# written to the journal file. The second change is such that the
|
|
# journal content written to the persistent journal file exactly overwrites
|
|
# the first journal-header and set of subsequent records written by the
|
|
# first, successful, change. The second process crashes before it can
|
|
# commit its second change.
|
|
#
|
|
# When the first process accessed the database again, it was rolling back
|
|
# the second aborted transaction, then continuing to rollback the second
|
|
# and subsequent journal-headers written by the first, successful, change.
|
|
# Database corruption.
|
|
#
|
|
do_test crash8.2.1 {
|
|
crashsql -delay 2 -file test.db {
|
|
PRAGMA journal_mode = persist;
|
|
PRAGMA cache_size = 10;
|
|
UPDATE t1 SET b = randstr(1000,1000);
|
|
PRAGMA cache_size = 100;
|
|
BEGIN;
|
|
INSERT INTO t2 VALUES('a', 'b');
|
|
INSERT INTO t3 VALUES('a', 'b');
|
|
INSERT INTO t4 VALUES('a', 'b');
|
|
INSERT INTO t5 VALUES('a', 'b');
|
|
INSERT INTO t6 VALUES('a', 'b');
|
|
INSERT INTO t7 VALUES('a', 'b');
|
|
INSERT INTO t8 VALUES('a', 'b');
|
|
INSERT INTO t9 VALUES('a', 'b');
|
|
INSERT INTO t10 VALUES('a', 'b');
|
|
COMMIT;
|
|
}
|
|
} {1 {child process exited abnormally}}
|
|
|
|
do_test crash8-2.3 {
|
|
execsql {PRAGMA integrity_check}
|
|
} {ok}
|
|
|
|
proc read_file {zFile} {
|
|
set fd [open $zFile]
|
|
fconfigure $fd -translation binary
|
|
set zData [read $fd]
|
|
close $fd
|
|
return $zData
|
|
}
|
|
|
|
# The following tests check that SQLite will not roll back a hot-journal
|
|
# file if the sector-size field in the first journal file header is
|
|
# suspect. Definition of suspect:
|
|
#
|
|
# a) Not a power of 2, or
|
|
# b) Greater than 0x1000000 (16MB).
|
|
#
|
|
do_test crash8-3.1 {
|
|
list [file exists test.db-joural] [file exists test.db]
|
|
} {0 1}
|
|
do_test crash8-3.2 {
|
|
execsql {
|
|
PRAGMA synchronous = off;
|
|
BEGIN;
|
|
DELETE FROM t1;
|
|
SELECT count(*) FROM t1;
|
|
}
|
|
} {0}
|
|
do_test crash8-3.3 {
|
|
set zJournal [read_file test.db-journal]
|
|
execsql {
|
|
COMMIT;
|
|
SELECT count(*) FROM t1;
|
|
}
|
|
} {0}
|
|
do_test crash8-3.4 {
|
|
binary scan [string range $zJournal 20 23] I nSector
|
|
set nSector
|
|
} {512}
|
|
do_test crash8-3.5 {
|
|
set zJournal2 [
|
|
string replace $zJournal 20 23 [binary format I 511]
|
|
]
|
|
set fd [open test.db-journal w]
|
|
fconfigure $fd -translation binary
|
|
puts -nonewline $fd $zJournal2
|
|
close $fd
|
|
|
|
execsql {
|
|
SELECT count(*) FROM t1;
|
|
PRAGMA integrity_check
|
|
}
|
|
} {0 ok}
|
|
do_test crash8-3.6 {
|
|
set zJournal2 [
|
|
string replace $zJournal 20 23 [binary format I [expr 0x2000000]]
|
|
]
|
|
set fd [open test.db-journal w]
|
|
fconfigure $fd -translation binary
|
|
puts -nonewline $fd $zJournal2
|
|
close $fd
|
|
execsql {
|
|
SELECT count(*) FROM t1;
|
|
PRAGMA integrity_check
|
|
}
|
|
} {0 ok}
|
|
do_test crash8-3.7 {
|
|
set fd [open test.db-journal w]
|
|
fconfigure $fd -translation binary
|
|
puts -nonewline $fd $zJournal
|
|
close $fd
|
|
execsql {
|
|
SELECT count(*) FROM t1;
|
|
PRAGMA integrity_check
|
|
}
|
|
} {6 ok}
|
|
|
|
|
|
# If a connection running in persistent-journal mode is part of a
|
|
# multi-file transaction, it must ensure that the master-journal name
|
|
# appended to the journal file contents during the commit is located
|
|
# at the end of the physical journal file. If there was already a
|
|
# large journal file allocated at the start of the transaction, this
|
|
# may mean truncating the file so that the master journal name really
|
|
# is at the physical end of the file.
|
|
#
|
|
# This block of tests test that SQLite correctly truncates such
|
|
# journal files, and that the results behave correctly if a hot-journal
|
|
# rollback occurs.
|
|
#
|
|
ifcapable pragma {
|
|
reset_db
|
|
file delete -force test2.db
|
|
|
|
do_test crash8-4.1 {
|
|
execsql {
|
|
PRAGMA journal_mode = persist;
|
|
CREATE TABLE ab(a, b);
|
|
INSERT INTO ab VALUES(0, 'abc');
|
|
INSERT INTO ab VALUES(1, NULL);
|
|
INSERT INTO ab VALUES(2, NULL);
|
|
INSERT INTO ab VALUES(3, NULL);
|
|
INSERT INTO ab VALUES(4, NULL);
|
|
INSERT INTO ab VALUES(5, NULL);
|
|
INSERT INTO ab VALUES(6, NULL);
|
|
UPDATE ab SET b = randstr(1000,1000);
|
|
ATTACH 'test2.db' AS aux;
|
|
CREATE TABLE aux.ab(a, b);
|
|
INSERT INTO aux.ab SELECT * FROM main.ab;
|
|
|
|
UPDATE aux.ab SET b = randstr(1000,1000) WHERE a>=1;
|
|
UPDATE ab SET b = randstr(1000,1000) WHERE a>=1;
|
|
}
|
|
list [file exists test.db-journal] [file exists test2.db-journal]
|
|
} {1 1}
|
|
|
|
do_test crash8-4.2 {
|
|
execsql {
|
|
BEGIN;
|
|
UPDATE aux.ab SET b = 'def' WHERE a = 0;
|
|
UPDATE main.ab SET b = 'def' WHERE a = 0;
|
|
COMMIT;
|
|
}
|
|
} {}
|
|
|
|
do_test crash8-4.3 {
|
|
execsql {
|
|
UPDATE aux.ab SET b = randstr(1000,1000) WHERE a>=1;
|
|
UPDATE ab SET b = randstr(1000,1000) WHERE a>=1;
|
|
}
|
|
} {}
|
|
|
|
set contents_main [db eval {SELECT b FROM main.ab WHERE a = 1}]
|
|
set contents_aux [db eval {SELECT b FROM aux.ab WHERE a = 1}]
|
|
|
|
do_test crash8-4.4 {
|
|
crashsql -file test2.db -delay 1 {
|
|
ATTACH 'test2.db' AS aux;
|
|
BEGIN;
|
|
UPDATE aux.ab SET b = 'ghi' WHERE a = 0;
|
|
UPDATE main.ab SET b = 'ghi' WHERE a = 0;
|
|
COMMIT;
|
|
}
|
|
} {1 {child process exited abnormally}}
|
|
|
|
do_test crash8-4.5 {
|
|
list [file exists test.db-journal] [file exists test2.db-journal]
|
|
} {1 1}
|
|
|
|
do_test crash8-4.6 {
|
|
execsql {
|
|
SELECT b FROM main.ab WHERE a = 0;
|
|
SELECT b FROM aux.ab WHERE a = 0;
|
|
}
|
|
} {def def}
|
|
|
|
do_test crash8-4.7 {
|
|
crashsql -file test2.db -delay 1 {
|
|
ATTACH 'test2.db' AS aux;
|
|
BEGIN;
|
|
UPDATE aux.ab SET b = 'jkl' WHERE a = 0;
|
|
UPDATE main.ab SET b = 'jkl' WHERE a = 0;
|
|
COMMIT;
|
|
}
|
|
} {1 {child process exited abnormally}}
|
|
|
|
do_test crash8-4.8 {
|
|
set fd [open test.db-journal]
|
|
fconfigure $fd -translation binary
|
|
seek $fd -16 end
|
|
binary scan [read $fd 4] I len
|
|
|
|
seek $fd [expr {-1 * ($len + 16)}] end
|
|
set zMasterJournal [read $fd $len]
|
|
close $fd
|
|
|
|
file exists $zMasterJournal
|
|
} {1}
|
|
|
|
do_test crash8-4.9 {
|
|
execsql { SELECT b FROM aux.ab WHERE a = 0 }
|
|
} {def}
|
|
|
|
do_test crash8-4.10 {
|
|
file delete $zMasterJournal
|
|
execsql { SELECT b FROM main.ab WHERE a = 0 }
|
|
} {jkl}
|
|
}
|
|
|
|
finish_test
|