danielk1977
226 lines
6.4 KiB
Plaintext
226 lines
6.4 KiB
Plaintext
# 2001 October 12
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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: ioerr.test,v 1.11 2005/01/12 09:10:41 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set ::AV [execsql {pragma auto_vacuum}]
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# Usage: do_ioerr_test <test number> <options...>
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#
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# The first argument, <test number>, is an integer used to name the
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# tests executed by this proc. Options are as follows:
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#
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# -tclprep TCL script to run to prepare test.
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# -sqlprep SQL script to run to prepare test.
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# -tclbody TCL script to run with IO error simulation.
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# -sqlbody TCL script to run with IO error simulation.
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# -exclude List of 'N' values not to test.
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#
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proc do_ioerr_test {tn args} {
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array set ::ioerropts $args
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set ::go 1
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for {set n 1} {$::go} {incr n} {
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if {[info exists ::ioerropts(-exclude)]} {
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if {[lsearch $::ioerropts(-exclude) $n]!=-1} continue
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}
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do_test ioerr-$tn.$n.1 {
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set ::sqlite_io_error_pending 0
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db close
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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catch {file delete -force test2.db}
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catch {file delete -force test2.db-journal}
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set ::DB [sqlite3 db test.db]
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if {[info exists ::ioerropts(-tclprep)]} {
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eval $::ioerropts(-tclprep)
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}
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if {[info exists ::ioerropts(-sqlprep)]} {
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execsql $::ioerropts(-sqlprep)
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}
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expr 0
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} {0}
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do_test ioerr-$tn.$n.2 [subst {
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set ::sqlite_io_error_pending $n
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}] $n
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set ::ioerrorbody {}
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if {[info exists ::ioerropts(-tclbody)]} {
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append ::ioerrorbody "$::ioerropts(-tclbody)\n"
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}
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if {[info exists ::ioerropts(-sqlbody)]} {
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append ::ioerrorbody "db eval {$::ioerropts(-sqlbody)}"
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}
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do_test ioerr-$tn.$n.3 {
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set r [catch $::ioerrorbody msg]
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set ::go [expr {$::sqlite_io_error_pending<=0}]
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expr {$::sqlite_io_error_pending>0 || $r!=0}
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} {1}
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}
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set ::sqlite_io_error_pending 0
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}
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# If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error
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# on the 8th IO operation in the SQL script below doesn't report an error.
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#
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# This is because the 8th IO call attempts to read page 2 of the database
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# file when the file on disk is only 1 page. The pager layer detects that
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# this has happened and suppresses the error returned by the OS layer.
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#
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do_ioerr_test 1 -sqlprep {
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SELECT * FROM sqlite_master;
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} -sqlbody {
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CREATE TABLE t1(a,b,c);
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SELECT * FROM sqlite_master;
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BEGIN TRANSACTION;
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INSERT INTO t1 VALUES(1,2,3);
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INSERT INTO t1 VALUES(4,5,6);
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ROLLBACK;
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SELECT * FROM t1;
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BEGIN TRANSACTION;
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INSERT INTO t1 VALUES(1,2,3);
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INSERT INTO t1 VALUES(4,5,6);
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COMMIT;
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SELECT * FROM t1;
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DELETE FROM t1 WHERE a<100;
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} -exclude [expr [execsql {pragma auto_vacuum}] ? 8 : 0]
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proc cksum {{db db}} {
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set txt [$db eval {
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SELECT name, type, sql FROM sqlite_master order by name
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}]\n
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foreach tbl [$db eval {
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SELECT name FROM sqlite_master WHERE type='table' order by name
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}] {
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append txt [$db eval "SELECT * FROM $tbl"]\n
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}
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foreach prag {default_synchronous default_cache_size} {
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append txt $prag-[$db eval "PRAGMA $prag"]\n
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}
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set cksum [string length $txt]-[md5 $txt]
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# puts $cksum-[file size test.db]
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return $cksum
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}
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set ::go 1
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for {set n 1} {$go} {incr n} {
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if {$n==24} breakpoint
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do_test ioerr-2.$n.1 {
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set ::sqlite_io_error_pending 0
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db close
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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catch {file delete -force test2.db}
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catch {file delete -force test2.db-journal}
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sqlite3 db test.db
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execsql {
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BEGIN;
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CREATE TABLE t1(a, b, c);
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INSERT INTO t1 VALUES(1, randstr(5,50), randstr(5,50));
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INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
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INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
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CREATE TABLE t2 AS SELECT * FROM t1;
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CREATE TABLE t3 AS SELECT * FROM t1;
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COMMIT;
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DROP TABLE t2;
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}
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set ::cksum [cksum]
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execsql {
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SELECT name FROM sqlite_master WHERE type='table'
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}
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} {t1 t3}
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do_test ioerr-2.$n.2 [subst {
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set ::sqlite_io_error_pending $n
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}] $n
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do_test ioerr-2.$n.3 {
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set r [catch {db eval {
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VACUUM;
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}} msg]
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set ::go [expr {$::sqlite_io_error_pending<=0}]
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expr {$::sqlite_io_error_pending>0 || $r!=0}
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set ::sqlite_io_error_pending 0
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db close
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sqlite3 db test.db
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cksum
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} $cksum
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}
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set ::sqlite_io_error_pending 0
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do_ioerr_test 3 -tclprep {
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execsql {
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PRAGMA cache_size = 10;
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BEGIN;
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CREATE TABLE abc(a);
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INSERT INTO abc VALUES(randstr(1500,1500)); -- Page 4 is overflow
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}
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for {set i 0} {$i<150} {incr i} {
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execsql {
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INSERT INTO abc VALUES(randstr(100,100));
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}
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}
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execsql COMMIT
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} -sqlbody {
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CREATE TABLE abc2(a);
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BEGIN;
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DELETE FROM abc WHERE length(a)>100;
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UPDATE abc SET a = randstr(90,90);
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COMMIT;
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CREATE TABLE abc3(a);
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}
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# Test IO errors that can occur retrieving a record header that flows over
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# onto an overflow page.
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do_ioerr_test 4 -tclprep {
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set sql "CREATE TABLE abc(a1"
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for {set i 2} {$i<1300} {incr i} {
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append sql ", a$i"
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}
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append sql ");"
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execsql $sql
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execsql {INSERT INTO abc (a1) VALUES(NULL)}
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} -sqlbody {
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SELECT * FROM abc;
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}
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# Test IO errors that may occur during a multi-file commit.
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do_ioerr_test 5 -sqlprep {
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ATTACH 'test2.db' AS test2;
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} -sqlbody {
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BEGIN;
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CREATE TABLE t1(a,b,c);
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CREATE TABLE test2.t2(a,b,c);
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COMMIT;
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}
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finish_test
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