3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
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.
15 # The tests in this file use special facilities that are only
16 # available in the SQLite test fixture.
18 # $Id: ioerr.test,v 1.43 2009/04/06 17:50:03 danielk1977 Exp $
20 set testdir [file dirname $argv0]
21 source $testdir/tester.tcl
23 # If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error
24 # on the 8th IO operation in the SQL script below doesn't report an error.
26 # This is because the 8th IO call attempts to read page 2 of the database
27 # file when the file on disk is only 1 page. The pager layer detects that
28 # this has happened and suppresses the error returned by the OS layer.
30 do_ioerr_test ioerr-1 -erc 1 -ckrefcount 1 -sqlprep {
31 SELECT * FROM sqlite_master;
33 CREATE TABLE t1(a,b,c);
34 SELECT * FROM sqlite_master;
36 INSERT INTO t1 VALUES(1,2,3);
37 INSERT INTO t1 VALUES(4,5,6);
41 INSERT INTO t1 VALUES(1,2,3);
42 INSERT INTO t1 VALUES(4,5,6);
45 DELETE FROM t1 WHERE a<100;
46 } -exclude [expr [string match [execsql {pragma auto_vacuum}] 1] ? 4 : 0]
48 # Test for IO errors during a VACUUM.
50 # The first IO call is excluded from the test. This call attempts to read
51 # the file-header of the temporary database used by VACUUM. Since the
52 # database doesn't exist at that point, the IO error is not detected.
54 # Additionally, if auto-vacuum is enabled, the 12th IO error is not
55 # detected. Same reason as the 8th in the test case above.
58 do_ioerr_test ioerr-2 -cksum true -ckrefcount true -sqlprep {
60 CREATE TABLE t1(a, b, c);
61 INSERT INTO t1 VALUES(1, randstr(50,50), randstr(50,50));
62 INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1;
63 INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
64 INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
65 INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
66 INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
67 INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
68 INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
69 INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
70 CREATE TABLE t2 AS SELECT * FROM t1;
71 CREATE TABLE t3 AS SELECT * FROM t1;
77 1 [expr [string match [execsql {pragma auto_vacuum}] 1]?9:-1]]
80 do_ioerr_test ioerr-3 -ckrefcount true -tclprep {
82 PRAGMA cache_size = 10;
85 INSERT INTO abc VALUES(randstr(1500,1500)); -- Page 4 is overflow
87 for {set i 0} {$i<150} {incr i} {
89 INSERT INTO abc VALUES(randstr(100,100));
96 DELETE FROM abc WHERE length(a)>100;
97 UPDATE abc SET a = randstr(90,90);
102 # Test IO errors that can occur retrieving a record header that flows over
103 # onto an overflow page.
104 do_ioerr_test ioerr-4 -ckrefcount true -tclprep {
105 set sql "CREATE TABLE abc(a1"
106 for {set i 2} {$i<1300} {incr i} {
111 execsql {INSERT INTO abc (a1) VALUES(NULL)}
117 # Test IO errors that may occur during a multi-file commit.
119 # Tests 8 and 17 are excluded when auto-vacuum is enabled for the same
120 # reason as in test cases ioerr-1.XXX
123 if {[string match [execsql {pragma auto_vacuum}] 1]} {
126 do_ioerr_test ioerr-5 -restoreprng 0 -ckrefcount true -sqlprep {
127 ATTACH 'test2.db' AS test2;
130 CREATE TABLE t1(a,b,c);
131 CREATE TABLE test2.t2(a,b,c);
136 # Test IO errors when replaying two hot journals from a 2-file
137 # transaction. This test only runs on UNIX.
139 # It cannot be run under the "exclusive" permutation. In that case, the
140 # locks held by the connection in the local (this) process prevent a
141 # second connection from attempting the multi-file transaction.
143 ifcapable crashtest&&attach {
144 if {![catch {sqlite3 -has-codec} r] && !$r && [permutation]!="exclusive"} {
145 do_ioerr_test ioerr-6 -ckrefcount true -tclprep {
147 ATTACH 'test2.db' as aux;
148 CREATE TABLE tx(a, b);
149 CREATE TABLE aux.ty(a, b);
151 set rc [crashsql -delay 2 -file test2.db-journal {
152 ATTACH 'test2.db' as aux;
153 PRAGMA cache_size = 10;
155 CREATE TABLE aux.t2(a, b, c);
156 CREATE TABLE t1(a, b, c);
159 if {$rc!="1 {child process exited abnormally}"} {
160 error "Wrong error message: $rc"
163 SELECT * FROM sqlite_master;
164 SELECT * FROM aux.sqlite_master;
169 # Test handling of IO errors that occur while rolling back hot journal
172 # These tests can't be run on windows because the windows version of
173 # SQLite holds a mandatory exclusive lock on journal files it has open.
175 if {$tcl_platform(platform)!="windows" && ![atomic_batch_write test.db]} {
176 do_ioerr_test ioerr-7 -tclprep {
180 PRAGMA synchronous = 0;
181 CREATE TABLE t1(a, b);
182 INSERT INTO t1 VALUES(1, 2);
184 INSERT INTO t1 VALUES(3, 4);
186 forcecopy test2.db test.db
187 forcecopy test2.db-journal test.db-journal
197 # For test coverage: Cause an I/O failure while trying to read a
198 # short field (one that fits into a Mem buffer without mallocing
201 do_ioerr_test ioerr-8 -ckrefcount true -tclprep {
203 CREATE TABLE t1(a,b,c);
204 INSERT INTO t1 VALUES(randstr(200,200), randstr(1000,1000), 2);
212 # For test coverage: Cause an IO error whilst reading the master-journal
213 # name from a journal file.
214 if {$tcl_platform(platform)=="unix" && [atomic_batch_write test.db]==0} {
215 do_ioerr_test ioerr-9 -ckrefcount true -tclprep {
217 CREATE TABLE t1(a,b,c);
218 INSERT INTO t1 VALUES(randstr(200,200), randstr(1000,1000), 2);
220 INSERT INTO t1 VALUES(randstr(200,200), randstr(1000,1000), 2);
222 forcecopy test.db-journal test2.db-journal
226 forcecopy test2.db-journal test.db-journal
227 set f [open test.db-journal a]
228 fconfigure $f -encoding binary
229 puts -nonewline $f "hello"
230 puts -nonewline $f "\x00\x00\x00\x05\x01\x02\x03\x04"
231 puts -nonewline $f "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
238 # For test coverage: Cause an IO error during statement playback (i.e.
240 do_ioerr_test ioerr-10 -ckrefcount true -tclprep {
243 CREATE TABLE t1(a PRIMARY KEY, b);
245 for {set i 0} {$i < 500} {incr i} {
246 execsql {INSERT INTO t1 VALUES(:i, 'hello world');}
255 INSERT INTO t1 VALUES('abc', 123);
256 INSERT INTO t1 VALUES('def', 123);
257 INSERT INTO t1 VALUES('ghi', 123);
258 INSERT INTO t1 SELECT (a+500)%900, 'good string' FROM t1;
261 if {$msg != "UNIQUE constraint failed: t1.a"} {
266 # Assertion fault bug reported by alex dimitrov.
268 do_ioerr_test ioerr-11 -ckrefcount true -erc 1 -sqlprep {
269 CREATE TABLE A(Id INTEGER, Name TEXT);
270 INSERT INTO A(Id, Name) VALUES(1, 'Name');
272 UPDATE A SET Id = 2, Name = 'Name2' WHERE Id = 1;
275 # Test that an io error encountered in a sync() caused by a call to
276 # sqlite3_release_memory() is handled Ok. Only try this if
277 # memory-management is enabled.
279 ifcapable memorymanage {
280 do_ioerr_test memmanage-ioerr1 -ckrefcount true -sqlprep {
282 CREATE TABLE t1(a, b, c);
283 INSERT INTO t1 VALUES(randstr(50,50), randstr(100,100), randstr(10,10));
284 INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
285 INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
286 INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
287 INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
288 INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
290 sqlite3_release_memory
296 ifcapable pager_pragmas&&autovacuum {
297 do_ioerr_test ioerr-12 -ckrefcount true -erc 1 -sqlprep {
298 PRAGMA page_size = 512;
299 PRAGMA auto_vacuum = incremental;
301 INSERT INTO t1 VALUES( randomblob(1 * (512-4)) );
302 INSERT INTO t1 VALUES( randomblob(110 * (512-4)) );
303 INSERT INTO t1 VALUES( randomblob(2 * (512-4)) );
304 INSERT INTO t1 VALUES( randomblob(110 * (512-4)) );
305 INSERT INTO t1 VALUES( randomblob(3 * (512-4)) );
306 DELETE FROM t1 WHERE rowid = 3;
307 PRAGMA incremental_vacuum = 2;
308 DELETE FROM t1 WHERE rowid = 1;
310 PRAGMA incremental_vacuum = 1;
314 # Usually, after a new page is allocated from the end of the file, it does
315 # not need to be written to the journal. The exception is when the new page
316 # shares its sector with an existing page that does need to be journalled.
317 # This test case provokes this condition to test for the sake of coverage
318 # that an IO error while journalling the coresident page is handled correctly.
320 sqlite3_simulate_device -char {} -sectorsize 2048
321 do_ioerr_test ioerr-12 -ckrefcount true -erc 1 -tclprep {
323 sqlite3 db test.db -vfs devsym
325 # Create a test database. Page 2 is the root page of table t1. The only
326 # row inserted into t1 has an overflow page - page 3. Page 3 will be
327 # coresident on the 2048 byte sector with the next page to be allocated.
329 db eval { PRAGMA page_size = 1024 }
330 db eval { CREATE TABLE t1(x) }
331 db eval { INSERT INTO t1 VALUES(randomblob(1100)); }
333 db eval { INSERT INTO t1 VALUES(randomblob(2000)); }
335 sqlite3_simulate_device -char {} -sectorsize 0
339 do_ioerr_test ioerr-13 -ckrefcount true -erc 1 -sqlprep {
340 PRAGMA auto_vacuum = incremental;
343 INSERT INTO t2 VALUES(randomblob(1500));
344 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
345 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
346 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
347 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
348 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
349 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
350 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
351 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
352 INSERT INTO t1 VALUES(randomblob(20));
353 INSERT INTO t1 SELECT x FROM t1;
354 INSERT INTO t1 SELECT x FROM t1;
355 INSERT INTO t1 SELECT x FROM t1;
356 INSERT INTO t1 SELECT x FROM t1;
357 INSERT INTO t1 SELECT x FROM t1;
358 INSERT INTO t1 SELECT x FROM t1; /* 64 entries in t1 */
359 INSERT INTO t1 SELECT x FROM t1 LIMIT 14; /* 78 entries in t1 */
360 DELETE FROM t2 WHERE rowid = 3;
362 -- This statement uses the balance_quick() optimization. The new page
363 -- is appended to the database file. But the overflow page used by
364 -- the new record will be positioned near the start of the database
365 -- file, in the gap left by the "DELETE FROM t2 WHERE rowid=3" statement
368 -- The point of this is that the statement wil need to update two pointer
369 -- map pages. Which introduces another opportunity for an IO error.
371 INSERT INTO t1 VALUES(randomblob(2000));
374 do_ioerr_test ioerr-14 -ckrefcount true -erc 1 -sqlprep {
375 PRAGMA auto_vacuum = incremental;
378 INSERT INTO t2 VALUES(randomblob(1500));
379 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
380 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
381 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
382 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
383 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
384 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
385 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
386 INSERT INTO t2 SELECT randomblob(1500) FROM t2;
388 -- This statement inserts a row into t1 with an overflow page at the
389 -- end of the file. A long way from its parent (the root of t1).
390 INSERT INTO t1 VALUES(randomblob(1500));
391 DELETE FROM t2 WHERE rowid<10;
393 -- This transaction will cause the root-page of table t1 to divide
394 -- (by calling balance_deeper()). When it does, the "parent" page of the
395 -- overflow page inserted in the -sqlprep block above will change and
396 -- the corresponding pointer map page be updated. This test case attempts
397 -- to cause an IO error during the pointer map page update.
400 INSERT INTO t1 VALUES(randomblob(100));
401 INSERT INTO t1 VALUES(randomblob(100));
402 INSERT INTO t1 VALUES(randomblob(100));
403 INSERT INTO t1 VALUES(randomblob(100));
404 INSERT INTO t1 VALUES(randomblob(100));
405 INSERT INTO t1 VALUES(randomblob(100));
406 INSERT INTO t1 VALUES(randomblob(100));
407 INSERT INTO t1 VALUES(randomblob(100));
408 INSERT INTO t1 VALUES(randomblob(100));
409 INSERT INTO t1 VALUES(randomblob(100));
413 do_ioerr_test ioerr-15 -tclprep {
416 PRAGMA cache_size = 10;
418 CREATE INDEX i1 ON t1(a);
421 for {set ii 1} {$ii < 100} {incr ii} {
422 set v [string range [string repeat [format %.3d $ii] 200] 0 220]
423 db eval {INSERT INTO t1 VALUES($v)}
426 DELETE FROM t1 WHERE oid > 85;
431 INSERT INTO t2 VALUES(randstr(22000,22000));
432 DELETE FROM t1 WHERE oid = 83;
436 # This test verifies that IO errors that occur within the obscure branch
437 # of code executed by tkt3762.test are correctly reported.
439 ifcapable vacuum&&autovacuum&&pragma {
440 do_ioerr_test ioerr-16 -erc 1 -ckrefcount 1 -sqlprep {
441 PRAGMA auto_vacuum=INCREMENTAL;
442 PRAGMA page_size=1024;
445 INSERT INTO t1 VALUES(zeroblob(900));
446 INSERT INTO t1 VALUES(zeroblob(900));
447 INSERT INTO t1 SELECT x FROM t1;
448 INSERT INTO t1 SELECT x FROM t1;
449 INSERT INTO t1 SELECT x FROM t1;
450 INSERT INTO t1 SELECT x FROM t1;
451 INSERT INTO t1 SELECT x FROM t1;
452 INSERT INTO t1 SELECT x FROM t1;
453 INSERT INTO t1 SELECT x FROM t1;
454 DELETE FROM t1 WHERE rowid>202;
457 PRAGMA cache_size = 10;
459 DELETE FROM t1 WHERE rowid IN (10,11,12) ;
461 PRAGMA incremental_vacuum(10);