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| 1 # 2007 April 2 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # This file implements regression tests for SQLite library. The | |
| 12 # focus of this file is testing for correct handling of I/O errors | |
| 13 # such as writes failing because the disk is full. | |
| 14 # | |
| 15 # The tests in this file use special facilities that are only | |
| 16 # available in the SQLite test fixture. | |
| 17 # | |
| 18 # $Id: ioerr2.test,v 1.12 2009/06/05 17:09:12 drh Exp $ | |
| 19 | |
| 20 set testdir [file dirname $argv0] | |
| 21 source $testdir/tester.tcl | |
| 22 | |
| 23 ifcapable !integrityck { | |
| 24 finish_test | |
| 25 return | |
| 26 } | |
| 27 | |
| 28 do_test ioerr2-1.1 { | |
| 29 execsql { | |
| 30 PRAGMA cache_size = 10; | |
| 31 PRAGMA default_cache_size = 10; | |
| 32 CREATE TABLE t1(a, b, PRIMARY KEY(a, b)); | |
| 33 INSERT INTO t1 VALUES(randstr(400,400),randstr(400,400)); | |
| 34 INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2 | |
| 35 INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 4 | |
| 36 INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 8 | |
| 37 INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 16 | |
| 38 INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 32 | |
| 39 } | |
| 40 } {} | |
| 41 | |
| 42 set ::cksum [execsql {SELECT md5sum(a, b) FROM t1}] | |
| 43 proc check_db {testname} { | |
| 44 | |
| 45 # Make sure no I/O errors are simulated in this proc. | |
| 46 set ::sqlite_io_error_hit 0 | |
| 47 set ::sqlite_io_error_persist 0 | |
| 48 set ::sqlite_io_error_pending 0 | |
| 49 | |
| 50 # Run an integrity-check. If "disk I/O error" is returned, the | |
| 51 # pager must be in error state. In this case open a new database | |
| 52 # connection. Otherwise, try a ROLLBACK, in case a transaction | |
| 53 # is still active. | |
| 54 set rc [catch {execsql {PRAGMA integrity_check}} msg] | |
| 55 if {$rc && ($msg eq "disk I/O error" || $msg eq "database is locked")} { | |
| 56 db close | |
| 57 sqlite3 db test.db | |
| 58 set refcnt 0 | |
| 59 } else { | |
| 60 if {$rc || $msg ne "ok"} { | |
| 61 error $msg | |
| 62 } | |
| 63 catch {execsql ROLLBACK} | |
| 64 } | |
| 65 | |
| 66 # Check that the database checksum is still $::cksum, and that | |
| 67 # the integrity-check passes. | |
| 68 set ck [execsql {SELECT md5sum(a, b) FROM t1}] | |
| 69 do_test ${testname}.cksum [list set ck $ck] $::cksum | |
| 70 integrity_check ${testname}.integrity | |
| 71 do_test ${testname}.refcnt { | |
| 72 lindex [sqlite3_pager_refcounts db] 0 | |
| 73 } 0 | |
| 74 } | |
| 75 | |
| 76 check_db ioerr2-2 | |
| 77 | |
| 78 set sql { | |
| 79 PRAGMA cache_size = 10; | |
| 80 PRAGMA default_cache_size = 10; | |
| 81 BEGIN; | |
| 82 DELETE FROM t1 WHERE (oid%7)==0; | |
| 83 INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) | |
| 84 WHERE (random()%7)==0; | |
| 85 UPDATE t1 SET a = randstr(400,400), b = randstr(400,400) | |
| 86 WHERE (random()%7)==0; | |
| 87 ROLLBACK; | |
| 88 } | |
| 89 | |
| 90 foreach bPersist [list 0 1] { | |
| 91 set ::go 1 | |
| 92 for {set ::N 1} {$::go} {incr ::N} { | |
| 93 db close | |
| 94 sqlite3 db test.db | |
| 95 set ::sqlite_io_error_hit 0 | |
| 96 set ::sqlite_io_error_persist $bPersist | |
| 97 set ::sqlite_io_error_pending $::N | |
| 98 | |
| 99 foreach {::go res} [catchsql $sql] {} | |
| 100 check_db ioerr2-3.$bPersist.$::N | |
| 101 } | |
| 102 } | |
| 103 foreach bPersist [list 0 1] { | |
| 104 set ::go 1 | |
| 105 for {set ::N 1} {$::go} {incr ::N} { | |
| 106 set ::sqlite_io_error_hit 0 | |
| 107 set ::sqlite_io_error_persist $bPersist | |
| 108 set ::sqlite_io_error_pending $::N | |
| 109 | |
| 110 foreach {::go res} [catchsql $sql] {} | |
| 111 check_db ioerr2-4.[expr {$bPersist+2}].$::N | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 do_test ioerr2-5 { | |
| 116 execsql { | |
| 117 CREATE TABLE t2 AS SELECT * FROM t1; | |
| 118 PRAGMA temp_store = memory; | |
| 119 } | |
| 120 set ::sqlite_io_error_persist 0 | |
| 121 set ::go 1 | |
| 122 set rc [catch { | |
| 123 for {set ::N 2} {$::N<200} {incr ::N} { | |
| 124 db eval {SELECT * FROM t1 WHERE rowid IN (1, 5, 10, 15, 20)} { | |
| 125 set ::sqlite_io_error_hit 0 | |
| 126 set ::sqlite_io_error_pending $::N | |
| 127 set sql {UPDATE t2 SET b = randstr(400,400)} | |
| 128 foreach {::go res} [catchsql $sql] {} | |
| 129 } | |
| 130 } | |
| 131 } msg] | |
| 132 list $rc $msg | |
| 133 } {1 {callback requested query abort}} | |
| 134 | |
| 135 if {$::tcl_platform(platform) == "unix"} { | |
| 136 # Cause the call to xAccess used by [pragma temp_store_directory] to | |
| 137 # determine if the specified directory is writable to fail. This causes | |
| 138 # SQLite to report "not a writable directory", which is probably the | |
| 139 # right answer. | |
| 140 # | |
| 141 do_test ioerr2-6 { | |
| 142 set ::sqlite_io_error_hit 0 | |
| 143 set ::sqlite_io_error_pending 1 | |
| 144 catchsql {PRAGMA temp_store_directory = '/tmp/'} | |
| 145 } {1 {not a writable directory}} | |
| 146 } | |
| 147 | |
| 148 do_ioerr_test ioerr2-7 -persist 0 -sqlprep { | |
| 149 PRAGMA cache_size = 10; | |
| 150 PRAGMA auto_vacuum = 1; | |
| 151 CREATE TABLE ab(a, b); | |
| 152 CREATE TABLE de(d, e); | |
| 153 INSERT INTO ab VALUES(1, randstr(200,200)); | |
| 154 INSERT INTO ab SELECT a+1, randstr(200,200) FROM ab; | |
| 155 INSERT INTO ab SELECT a+2, randstr(200,200) FROM ab; | |
| 156 INSERT INTO ab SELECT a+4, randstr(200,200) FROM ab; | |
| 157 INSERT INTO ab SELECT a+8, randstr(200,200) FROM ab; | |
| 158 INSERT INTO ab SELECT a+16, randstr(200,200) FROM ab; | |
| 159 INSERT INTO ab SELECT a+32, randstr(200,200) FROM ab; | |
| 160 INSERT INTO ab SELECT a+64, randstr(200,200) FROM ab; | |
| 161 INSERT INTO de SELECT * FROM ab; | |
| 162 } -sqlbody { | |
| 163 BEGIN; | |
| 164 UPDATE ab SET b = randstr(200,200); | |
| 165 UPDATE de SET e = randstr(200,200) WHERE d = (SELECT max(d) FROM de); | |
| 166 DELETE FROM ab; | |
| 167 COMMIT; | |
| 168 } | |
| 169 | |
| 170 finish_test | |
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