99 lines
2.9 KiB
Plaintext
99 lines
2.9 KiB
Plaintext
# 2007 April 2
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing for correct handling of I/O errors
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# such as writes failing because the disk is full.
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#
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# The tests in this file use special facilities that are only
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# available in the SQLite test fixture.
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#
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# $Id: ioerr2.test,v 1.3 2007/04/09 12:45:03 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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do_test ioerr2-1.1 {
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execsql {
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PRAGMA cache_size = 10;
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PRAGMA default_cache_size = 10;
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CREATE TABLE t1(a, b, PRIMARY KEY(a, b));
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INSERT INTO t1 VALUES(randstr(400,400),randstr(400,400));
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INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
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INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 4
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INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 8
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INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 16
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INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 32
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}
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} {}
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set ::cksum [execsql {SELECT md5sum(a, b) FROM t1}]
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proc check_db {testname} {
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# Make sure no I/O errors are simulated in this proc.
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set ::sqlite_io_error_hit 0
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set ::sqlite_io_error_persist 0
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set ::sqlite_io_error_pending 0
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# Run an integrity-check. If "disk I/O error" is returned, the
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# pager must be in error state. In this case open a new database
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# connection. Otherwise, try a ROLLBACK, in case a transaction
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# is still active.
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set rc [catch {execsql {PRAGMA integrity_check}} msg]
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if {$rc && $msg eq "disk I/O error"} {
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db close
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sqlite3 db test.db
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set refcnt 0
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} else {
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if {$rc || $msg ne "ok"} {
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error $msg
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}
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catch {execsql ROLLBACK}
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}
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# Check that the database checksum is still $::cksum, and that
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# the integrity-check passes.
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set ck [execsql {SELECT md5sum(a, b) FROM t1}]
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do_test ${testname}.cksum [list set ck $ck] $::cksum
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integrity_check ${testname}.integrity
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do_test ${testname}.refcnt {
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lindex [sqlite3_pager_refcounts db] 0
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} 0
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}
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check_db ioerr2-2
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set sql {
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PRAGMA cache_size = 10;
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PRAGMA default_cache_size = 10;
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BEGIN;
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DELETE FROM t1 WHERE (oid%7)==0;
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INSERT INTO t1 SELECT randstr(400,400), randstr(400,400)
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WHERE (random()%7)==0;
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UPDATE t1 SET a = randstr(400,400), b = randstr(400,400)
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WHERE (random()%7)==0;
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ROLLBACK;
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}
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breakpoint
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foreach bPersist [list 0 1] {
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set ::go 1
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for {set ::N 1} {$::go} {incr ::N} {
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set ::sqlite_io_error_hit 0
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set ::sqlite_io_error_persist $bPersist
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set ::sqlite_io_error_pending $::N
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foreach {::go res} [catchsql $sql] {}
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check_db ioerr2-3.$bPersist.$::N
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}
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}
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finish_test
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