xref: /sqlite-3.40.0/test/pagerfault.test (revision b8fff29c)
1# 2010 June 15
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#
12
13set testdir [file dirname $argv0]
14source $testdir/tester.tcl
15source $testdir/lock_common.tcl
16source $testdir/malloc_common.tcl
17
18if {[permutation] == "inmemory_journal"} {
19  finish_test
20  return
21}
22
23if {$::tcl_platform(platform)=="windows"} {
24  finish_test
25  return
26}
27
28set a_string_counter 1
29proc a_string {n} {
30  global a_string_counter
31  incr a_string_counter
32  string range [string repeat "${a_string_counter}." $n] 1 $n
33}
34db func a_string a_string
35
36#-------------------------------------------------------------------------
37# Test fault-injection while rolling back a hot-journal file.
38#
39do_test pagerfault-1-pre1 {
40  execsql {
41    PRAGMA journal_mode = DELETE;
42    PRAGMA cache_size = 10;
43    CREATE TABLE t1(a UNIQUE, b UNIQUE);
44    INSERT INTO t1 VALUES(a_string(200), a_string(300));
45    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
46    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
47    BEGIN;
48      INSERT INTO t1 SELECT a_string(201), a_string(301) FROM t1;
49      INSERT INTO t1 SELECT a_string(202), a_string(302) FROM t1;
50      INSERT INTO t1 SELECT a_string(203), a_string(303) FROM t1;
51      INSERT INTO t1 SELECT a_string(204), a_string(304) FROM t1;
52  }
53  faultsim_save_and_close
54} {}
55do_faultsim_test pagerfault-1 -prep {
56  faultsim_restore_and_reopen
57} -body {
58  execsql { SELECT count(*) FROM t1 }
59} -test {
60  faultsim_test_result {0 4}
61  faultsim_integrity_check
62  if {[db one { SELECT count(*) FROM t1 }] != 4} {
63    error "Database content appears incorrect"
64  }
65}
66
67#-------------------------------------------------------------------------
68# Test fault-injection while rolling back a hot-journal file with a
69# page-size different from the current value stored on page 1 of the
70# database file.
71#
72do_test pagerfault-2-pre1 {
73  testvfs tv -default 1
74  tv filter xSync
75  tv script xSyncCb
76  proc xSyncCb {filename args} {
77    if {[string match *journal filename]==0} faultsim_save
78  }
79  faultsim_delete_and_reopen
80  execsql {
81    PRAGMA page_size = 4096;
82    BEGIN;
83      CREATE TABLE abc(a, b, c);
84      INSERT INTO abc VALUES('o', 't', 't');
85      INSERT INTO abc VALUES('f', 'f', 's');
86      INSERT INTO abc SELECT * FROM abc; -- 4
87      INSERT INTO abc SELECT * FROM abc; -- 8
88      INSERT INTO abc SELECT * FROM abc; -- 16
89      INSERT INTO abc SELECT * FROM abc; -- 32
90      INSERT INTO abc SELECT * FROM abc; -- 64
91      INSERT INTO abc SELECT * FROM abc; -- 128
92      INSERT INTO abc SELECT * FROM abc; -- 256
93    COMMIT;
94    PRAGMA page_size = 1024;
95    VACUUM;
96  }
97  db close
98  tv delete
99} {}
100do_faultsim_test pagerfault-2 -prep {
101  faultsim_restore_and_reopen
102} -body {
103  execsql { SELECT * FROM abc }
104} -test {
105  set answer [split [string repeat "ottffs" 128] ""]
106  faultsim_test_result [list 0 $answer]
107  faultsim_integrity_check
108  set res [db eval { SELECT * FROM abc }]
109  if {$res != $answer} { error "Database content appears incorrect ($res)" }
110}
111
112#-------------------------------------------------------------------------
113# Test fault-injection while rolling back hot-journals that were created
114# as part of a multi-file transaction.
115#
116do_test pagerfault-3-pre1 {
117  testvfs tstvfs -default 1
118  tstvfs filter xDelete
119  tstvfs script xDeleteCallback
120
121  proc xDeleteCallback {method file args} {
122    set file [file tail $file]
123    if { [string match *mj* $file] } { faultsim_save }
124  }
125
126  faultsim_delete_and_reopen
127  db func a_string a_string
128
129  execsql {
130    ATTACH 'test.db2' AS aux;
131    PRAGMA journal_mode = DELETE;
132    PRAGMA main.cache_size = 10;
133    PRAGMA aux.cache_size = 10;
134
135    CREATE TABLE t1(a UNIQUE, b UNIQUE);
136    CREATE TABLE aux.t2(a UNIQUE, b UNIQUE);
137    INSERT INTO t1 VALUES(a_string(200), a_string(300));
138    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
139    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
140    INSERT INTO t2 SELECT * FROM t1;
141
142    BEGIN;
143      INSERT INTO t1 SELECT a_string(201), a_string(301) FROM t1;
144      INSERT INTO t1 SELECT a_string(202), a_string(302) FROM t1;
145      INSERT INTO t1 SELECT a_string(203), a_string(303) FROM t1;
146      INSERT INTO t1 SELECT a_string(204), a_string(304) FROM t1;
147      REPLACE INTO t2 SELECT * FROM t1;
148    COMMIT;
149  }
150
151  db close
152  tstvfs delete
153} {}
154do_faultsim_test pagerfault-3 -prep {
155  faultsim_restore_and_reopen
156} -body {
157  execsql {
158    ATTACH 'test.db2' AS aux;
159    SELECT count(*) FROM t2;
160    SELECT count(*) FROM t1;
161  }
162} -test {
163  faultsim_test_result {0 {4 4}} {1 {unable to open database: test.db2}}
164  faultsim_integrity_check
165  catchsql { ATTACH 'test.db2' AS aux }
166  if {[db one { SELECT count(*) FROM t1 }] != 4
167   || [db one { SELECT count(*) FROM t2 }] != 4
168  } {
169    error "Database content appears incorrect"
170  }
171}
172
173#-------------------------------------------------------------------------
174# Test fault-injection as part of a vanilla, no-transaction, INSERT
175# statement.
176#
177do_faultsim_test pagerfault-4 -prep {
178  faultsim_delete_and_reopen
179} -body {
180  execsql {
181    CREATE TABLE x(y);
182    INSERT INTO x VALUES('z');
183    SELECT * FROM x;
184  }
185} -test {
186  faultsim_test_result {0 z}
187  faultsim_integrity_check
188}
189
190#-------------------------------------------------------------------------
191# Test fault-injection as part of a commit when using journal_mode=PERSIST.
192# Three different cases:
193#
194#    pagerfault-5.1: With no journal_size_limit configured.
195#    pagerfault-5.2: With a journal_size_limit configured.
196#    pagerfault-5.4: Multi-file transaction. One connection has a
197#                    journal_size_limit of 0, the other has no limit.
198#
199do_test pagerfault-5-pre1 {
200  faultsim_delete_and_reopen
201  db func a_string a_string
202  execsql {
203    CREATE TABLE t1(a UNIQUE, b UNIQUE);
204    INSERT INTO t1 VALUES(a_string(200), a_string(300));
205    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
206    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
207  }
208  faultsim_save_and_close
209} {}
210do_faultsim_test pagerfault-5.1 -prep {
211  faultsim_restore_and_reopen
212  db func a_string a_string
213  execsql { PRAGMA journal_mode = PERSIST }
214} -body {
215  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
216} -test {
217  faultsim_test_result {0 {}}
218  faultsim_integrity_check
219}
220do_faultsim_test pagerfault-5.2 -prep {
221  faultsim_restore_and_reopen
222  db func a_string a_string
223  execsql {
224    PRAGMA journal_mode = PERSIST;
225    PRAGMA journal_size_limit = 2048;
226  }
227} -body {
228  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
229} -test {
230  faultsim_test_result {0 {}}
231  faultsim_integrity_check
232}
233do_faultsim_test pagerfault-5.3 -faults oom-transient -prep {
234  faultsim_restore_and_reopen
235  db func a_string a_string
236  forcedelete test2.db test2.db-journal test2.db-wal
237  execsql {
238    PRAGMA journal_mode = PERSIST;
239    ATTACH 'test2.db' AS aux;
240    PRAGMA aux.journal_mode = PERSIST;
241    PRAGMA aux.journal_size_limit = 0;
242  }
243} -body {
244  execsql {
245    BEGIN;
246      INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
247      CREATE TABLE aux.t2 AS SELECT * FROM t1;
248    COMMIT;
249  }
250} -test {
251  faultsim_test_result {0 {}}
252
253  catchsql { COMMIT }
254  catchsql { ROLLBACK }
255
256  faultsim_integrity_check
257  set res ""
258  set rc [catch { set res [db one { PRAGMA aux.integrity_check }] }]
259  if {$rc!=0 || $res != "ok"} {error "integrity-check problem:$rc $res"}
260}
261
262#-------------------------------------------------------------------------
263# Test fault-injection as part of a commit when using
264# journal_mode=TRUNCATE.
265#
266do_test pagerfault-6-pre1 {
267  faultsim_delete_and_reopen
268  db func a_string a_string
269  execsql {
270    CREATE TABLE t1(a UNIQUE, b UNIQUE);
271    INSERT INTO t1 VALUES(a_string(200), a_string(300));
272  }
273  faultsim_save_and_close
274} {}
275
276do_faultsim_test pagerfault-6.1 -prep {
277  faultsim_restore_and_reopen
278  db func a_string a_string
279  execsql { PRAGMA journal_mode = TRUNCATE }
280} -body {
281  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
282  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
283} -test {
284  faultsim_test_result {0 {}}
285  faultsim_integrity_check
286}
287
288# The unix vfs xAccess() method considers a file zero bytes in size to
289# "not exist". This proc overrides that behaviour so that a zero length
290# file is considered to exist.
291#
292proc xAccess {method filename op args} {
293  if {$op != "SQLITE_ACCESS_EXISTS"} { return "" }
294  return [file exists $filename]
295}
296do_faultsim_test pagerfault-6.2 -faults cantopen-* -prep {
297  shmfault filter xAccess
298  shmfault script xAccess
299
300  faultsim_restore_and_reopen
301  db func a_string a_string
302  execsql { PRAGMA journal_mode = TRUNCATE }
303} -body {
304  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
305  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
306} -test {
307  faultsim_test_result {0 {}}
308  faultsim_integrity_check
309}
310
311# The following was an attempt to get a bitvec malloc to fail. Didn't work.
312#
313# do_test pagerfault-6-pre1 {
314#   faultsim_delete_and_reopen
315#   execsql {
316#     CREATE TABLE t1(x, y, UNIQUE(x, y));
317#     INSERT INTO t1 VALUES(1, randomblob(1501));
318#     INSERT INTO t1 VALUES(2, randomblob(1502));
319#     INSERT INTO t1 VALUES(3, randomblob(1503));
320#     INSERT INTO t1 VALUES(4, randomblob(1504));
321#     INSERT INTO t1
322#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
323#     INSERT INTO t1
324#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
325#     INSERT INTO t1
326#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
327#     INSERT INTO t1
328#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
329#   }
330#   faultsim_save_and_close
331# } {}
332# do_faultsim_test pagerfault-6 -prep {
333#   faultsim_restore_and_reopen
334# } -body {
335#   execsql {
336#     BEGIN;
337#       UPDATE t1 SET x=x+4 WHERE x=1;
338#       SAVEPOINT one;
339#         UPDATE t1 SET x=x+4 WHERE x=2;
340#         SAVEPOINT three;
341#           UPDATE t1 SET x=x+4 WHERE x=3;
342#           SAVEPOINT four;
343#             UPDATE t1 SET x=x+4 WHERE x=4;
344#         RELEASE three;
345#     COMMIT;
346#     SELECT DISTINCT x FROM t1;
347#   }
348# } -test {
349#   faultsim_test_result {0 {5 6 7 8}}
350#   faultsim_integrity_check
351# }
352#
353
354# This is designed to provoke a special case in the pager code:
355#
356# If an error (specifically, a FULL or IOERR error) occurs while writing a
357# dirty page to the file-system in order to free up memory, the pager enters
358# the "error state". An IO error causes SQLite to roll back the current
359# transaction (exiting the error state). A FULL error, however, may only
360# rollback the current statement.
361#
362# This block tests that nothing goes wrong if a FULL error occurs while
363# writing a dirty page out to free memory from within a statement that has
364# opened a statement transaction.
365#
366do_test pagerfault-7-pre1 {
367  faultsim_delete_and_reopen
368  execsql {
369    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
370    BEGIN;
371      INSERT INTO t2 VALUES(NULL, randomblob(1500));
372      INSERT INTO t2 VALUES(NULL, randomblob(1500));
373      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    --  4
374      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    --  8
375      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    -- 16
376      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    -- 32
377      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    -- 64
378    COMMIT;
379    CREATE TABLE t1(a PRIMARY KEY, b);
380    INSERT INTO t1 SELECT * FROM t2;
381    DROP TABLE t2;
382  }
383  faultsim_save_and_close
384} {}
385do_faultsim_test pagerfault-7 -prep {
386  faultsim_restore_and_reopen
387  execsql {
388    PRAGMA cache_size = 10;
389    BEGIN;
390      UPDATE t1 SET b = randomblob(1500);
391  }
392} -body {
393  execsql { UPDATE t1 SET a = 65, b = randomblob(1500) WHERE (a+1)>200 }
394  execsql COMMIT
395} -test {
396  faultsim_test_result {0 {}}
397  faultsim_integrity_check
398}
399
400do_test pagerfault-8-pre1 {
401  faultsim_delete_and_reopen
402  execsql {
403    PRAGMA auto_vacuum = 1;
404    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
405    BEGIN;
406      INSERT INTO t1 VALUES(NULL, randomblob(1500));
407      INSERT INTO t1 VALUES(NULL, randomblob(1500));
408      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    --  4
409      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    --  8
410      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    -- 16
411      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    -- 32
412      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    -- 64
413    COMMIT;
414  }
415  faultsim_save_and_close
416  set filesize [file size test.db]
417  set {} {}
418} {}
419do_test pagerfault-8-pre2 {
420  faultsim_restore_and_reopen
421  execsql { DELETE FROM t1 WHERE a>32 }
422  expr {[file size test.db] < $filesize}
423} {1}
424do_faultsim_test pagerfault-8 -prep {
425  faultsim_restore_and_reopen
426  execsql {
427    BEGIN;
428    DELETE FROM t1 WHERE a>32;
429  }
430} -body {
431  execsql COMMIT
432} -test {
433  faultsim_test_result {0 {}}
434  faultsim_integrity_check
435}
436
437#-------------------------------------------------------------------------
438# This test case is specially designed so that during a savepoint
439# rollback, a new cache entry must be allocated (see comments surrounding
440# the call to sqlite3PagerAcquire() from within pager_playback_one_page()
441# for details). Test the effects of injecting an OOM at this point.
442#
443do_test pagerfault-9-pre1 {
444  faultsim_delete_and_reopen
445  execsql {
446    PRAGMA auto_vacuum = incremental;
447    CREATE TABLE t1(x);
448    CREATE TABLE t2(y);
449    CREATE TABLE t3(z);
450
451    INSERT INTO t1 VALUES(randomblob(900));
452    INSERT INTO t1 VALUES(randomblob(900));
453    DELETE FROM t1;
454  }
455  faultsim_save_and_close
456} {}
457do_faultsim_test pagerfault-9.1 -prep {
458  faultsim_restore_and_reopen
459  execsql {
460    BEGIN;
461      INSERT INTO t1 VALUES(randomblob(900));
462      INSERT INTO t1 VALUES(randomblob(900));
463      DROP TABLE t3;
464      DROP TABLE t2;
465      SAVEPOINT abc;
466        PRAGMA incremental_vacuum;
467  }
468} -body {
469  execsql {
470    ROLLBACK TO abc;
471    COMMIT;
472    PRAGMA freelist_count
473  }
474} -test {
475  faultsim_test_result {0 2}
476  faultsim_integrity_check
477
478  set sl [db one { SELECT COALESCE(sum(length(x)), 'null') FROM t1 }]
479  if {$sl!="null" && $sl!=1800} {
480    error "Content looks no good... ($sl)"
481  }
482}
483
484#-------------------------------------------------------------------------
485# Test fault injection with a temporary database file.
486#
487foreach v {a b} {
488  do_faultsim_test pagerfault-10$v -prep {
489    sqlite3 db ""
490    db func a_string a_string;
491    execsql {
492      PRAGMA cache_size = 10;
493      BEGIN;
494        CREATE TABLE xx(a, b, UNIQUE(a, b));
495        INSERT INTO xx VALUES(a_string(200), a_string(200));
496        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
497        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
498        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
499        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
500      COMMIT;
501    }
502  } -body {
503    execsql { UPDATE xx SET a = a_string(300) }
504  } -test {
505    faultsim_test_result {0 {}}
506    if {$::v == "b"} { execsql { PRAGMA journal_mode = TRUNCATE } }
507    faultsim_integrity_check
508    faultsim_integrity_check
509  }
510}
511
512#-------------------------------------------------------------------------
513# Test fault injection with transaction savepoints (savepoints created
514# when a SAVEPOINT command is executed outside of any other savepoint
515# or transaction context).
516#
517do_test pagerfault-9-pre1 {
518  faultsim_delete_and_reopen
519  db func a_string a_string;
520  execsql {
521    PRAGMA auto_vacuum = on;
522    CREATE TABLE t1(x UNIQUE);
523    CREATE TABLE t2(y UNIQUE);
524    CREATE TABLE t3(z UNIQUE);
525    BEGIN;
526      INSERT INTO t1 VALUES(a_string(202));
527      INSERT INTO t2 VALUES(a_string(203));
528      INSERT INTO t3 VALUES(a_string(204));
529      INSERT INTO t1 SELECT a_string(202) FROM t1;
530      INSERT INTO t1 SELECT a_string(203) FROM t1;
531      INSERT INTO t1 SELECT a_string(204) FROM t1;
532      INSERT INTO t1 SELECT a_string(205) FROM t1;
533      INSERT INTO t2 SELECT a_string(length(x)) FROM t1;
534      INSERT INTO t3 SELECT a_string(length(x)) FROM t1;
535    COMMIT;
536  }
537  faultsim_save_and_close
538} {}
539do_faultsim_test pagerfault-11 -prep {
540  faultsim_restore_and_reopen
541  execsql { PRAGMA cache_size = 10 }
542} -body {
543  execsql {
544    SAVEPOINT trans;
545      UPDATE t2 SET y = y||'2';
546      INSERT INTO t3 SELECT * FROM t2;
547      DELETE FROM t1;
548    ROLLBACK TO trans;
549    UPDATE t1 SET x = x||'3';
550    INSERT INTO t2 SELECT * FROM t1;
551    DELETE FROM t3;
552    RELEASE trans;
553  }
554} -test {
555  faultsim_test_result {0 {}}
556  faultsim_integrity_check
557}
558
559
560#-------------------------------------------------------------------------
561# Test fault injection when writing to a database file that resides on
562# a file-system with a sector-size larger than the database page-size.
563#
564do_test pagerfault-12-pre1 {
565  testvfs ss_layer -default 1
566  ss_layer sectorsize 4096
567  faultsim_delete_and_reopen
568  db func a_string a_string;
569
570  execsql {
571    PRAGMA page_size = 1024;
572    PRAGMA journal_mode = PERSIST;
573    PRAGMA cache_size = 10;
574    BEGIN;
575      CREATE TABLE t1(x, y UNIQUE);
576      INSERT INTO t1 VALUES(a_string(333), a_string(444));
577      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
578      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
579      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
580      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
581      INSERT INTO t1 SELECT a_string(44), a_string(55) FROM t1 LIMIT 13;
582    COMMIT;
583  }
584  faultsim_save_and_close
585} {}
586
587do_faultsim_test pagerfault-12a -prep {
588  faultsim_restore_and_reopen
589  execsql { PRAGMA cache_size = 10 }
590  db func a_string a_string;
591} -body {
592  execsql {
593    UPDATE t1 SET x = a_string(length(x)), y = a_string(length(y));
594  }
595} -test {
596  faultsim_test_result {0 {}}
597  faultsim_integrity_check
598}
599
600do_test pagerfault-12-pre2 {
601  faultsim_restore_and_reopen
602  execsql {
603    CREATE TABLE t2 AS SELECT * FROM t1 LIMIT 10;
604  }
605  faultsim_save_and_close
606} {}
607do_faultsim_test pagerfault-12b -prep {
608  faultsim_restore_and_reopen
609  db func a_string a_string;
610  execsql { SELECT * FROM t1 }
611} -body {
612  set sql(1) { UPDATE t2 SET x = a_string(280) }
613  set sql(2) { UPDATE t1 SET x = a_string(280) WHERE rowid = 5 }
614
615  db eval { SELECT rowid FROM t1 LIMIT 2 } { db eval $sql($rowid) }
616
617} -test {
618  faultsim_test_result {0 {}}
619  faultsim_integrity_check
620}
621
622catch { db close }
623ss_layer delete
624
625
626#-------------------------------------------------------------------------
627# Test fault injection when SQLite opens a database where the size of the
628# database file is zero bytes but the accompanying journal file is larger
629# than that. In this scenario SQLite should delete the journal file
630# without rolling it back, even if it is in all other respects a valid
631# hot-journal file.
632#
633do_test pagerfault-13-pre1 {
634  faultsim_delete_and_reopen
635  db func a_string a_string;
636  execsql {
637    PRAGMA journal_mode = PERSIST;
638    BEGIN;
639      CREATE TABLE t1(x, y UNIQUE);
640      INSERT INTO t1 VALUES(a_string(333), a_string(444));
641    COMMIT;
642  }
643  db close
644  forcedelete test.db
645  faultsim_save
646} {}
647do_faultsim_test pagerfault-13 -prep {
648  faultsim_restore_and_reopen
649} -body {
650  execsql { CREATE TABLE xx(a, b) }
651} -test {
652  faultsim_test_result {0 {}}
653}
654
655#---------------------------------------------------------------------------
656# Test fault injection into a small backup operation.
657#
658do_test pagerfault-14-pre1 {
659  faultsim_delete_and_reopen
660  db func a_string a_string;
661  execsql {
662    PRAGMA journal_mode = PERSIST;
663    ATTACH 'test.db2' AS two;
664    BEGIN;
665      CREATE TABLE t1(x, y UNIQUE);
666      CREATE TABLE two.t2(x, y UNIQUE);
667      INSERT INTO t1 VALUES(a_string(333), a_string(444));
668      INSERT INTO t2 VALUES(a_string(333), a_string(444));
669    COMMIT;
670  }
671  faultsim_save_and_close
672} {}
673
674do_faultsim_test pagerfault-14a -prep {
675  faultsim_restore_and_reopen
676} -body {
677  if {[catch {db backup test.db2} msg]} { error [regsub {.*: } $msg {}] }
678} -test {
679  faultsim_test_result {0 {}} {1 {}} {1 {SQL logic error}}
680}
681
682# If TEMP_STORE is 2 or greater, then the database [db2] will be created
683# as an in-memory database. This test will not work in that case, as it
684# is not possible to change the page-size of an in-memory database. Even
685# using the backup API.
686#
687# Update: It is no longer possible to change the page size of any temp
688# database after it has been created.
689#
690do_faultsim_test pagerfault-14b -prep {
691  catch { db2 close }
692  faultsim_restore_and_reopen
693    sqlite3 db2 ""
694    db2 eval { PRAGMA page_size = 4096; CREATE TABLE xx(a) }
695} -body {
696  sqlite3_backup B db2 main db main
697  B step 200
698  set rc [B finish]
699  if {[string match SQLITE_IOERR_* $rc]} {set rc SQLITE_IOERR}
700  if {$rc != "SQLITE_OK"} { error [sqlite3_test_errstr $rc] }
701  set {} {}
702} -test {
703  faultsim_test_result {1 {attempt to write a readonly database}} \
704                       {1 {sqlite3_backup_init() failed}}
705}
706
707do_faultsim_test pagerfault-14c -prep {
708  catch { db2 close }
709  faultsim_restore_and_reopen
710  sqlite3 db2 test.db2
711  db2 eval {
712    PRAGMA synchronous = off;
713    PRAGMA page_size = 4096;
714    CREATE TABLE xx(a);
715  }
716} -body {
717  sqlite3_backup B db2 main db main
718  B step 200
719  set rc [B finish]
720  if {[string match SQLITE_IOERR_* $rc]} {set rc SQLITE_IOERR}
721  if {$rc != "SQLITE_OK"} { error [sqlite3_test_errstr $rc] }
722  set {} {}
723} -test {
724  faultsim_test_result {0 {}} {1 {sqlite3_backup_init() failed}}
725}
726
727do_test pagerfault-15-pre1 {
728  faultsim_delete_and_reopen
729  db func a_string a_string;
730  execsql {
731    BEGIN;
732      CREATE TABLE t1(x, y UNIQUE);
733      INSERT INTO t1 VALUES(a_string(11), a_string(22));
734      INSERT INTO t1 VALUES(a_string(11), a_string(22));
735    COMMIT;
736  }
737  faultsim_save_and_close
738} {}
739do_faultsim_test pagerfault-15 -prep {
740  faultsim_restore_and_reopen
741  db func a_string a_string;
742} -body {
743  db eval { SELECT * FROM t1 LIMIT 1 } {
744    execsql {
745      BEGIN; INSERT INTO t1 VALUES(a_string(333), a_string(555)); COMMIT;
746      BEGIN; INSERT INTO t1 VALUES(a_string(333), a_string(555)); COMMIT;
747    }
748  }
749} -test {
750  faultsim_test_result {0 {}}
751  faultsim_integrity_check
752}
753
754
755do_test pagerfault-16-pre1 {
756  faultsim_delete_and_reopen
757  execsql { CREATE TABLE t1(x, y UNIQUE) }
758  faultsim_save_and_close
759} {}
760do_faultsim_test pagerfault-16 -prep {
761  faultsim_restore_and_reopen
762} -body {
763  execsql {
764    PRAGMA locking_mode = exclusive;
765    PRAGMA journal_mode = wal;
766    INSERT INTO t1 VALUES(1, 2);
767    INSERT INTO t1 VALUES(3, 4);
768    PRAGMA journal_mode = delete;
769    INSERT INTO t1 VALUES(4, 5);
770    PRAGMA journal_mode = wal;
771    INSERT INTO t1 VALUES(6, 7);
772    PRAGMA journal_mode = persist;
773    INSERT INTO t1 VALUES(8, 9);
774  }
775} -test {
776  faultsim_test_result {0 {exclusive wal delete wal persist}}
777  faultsim_integrity_check
778}
779
780
781#-------------------------------------------------------------------------
782# Test fault injection while changing into and out of WAL mode.
783#
784do_test pagerfault-17-pre1 {
785  faultsim_delete_and_reopen
786  execsql {
787    CREATE TABLE t1(a PRIMARY KEY, b);
788    INSERT INTO t1 VALUES(1862, 'Botha');
789    INSERT INTO t1 VALUES(1870, 'Smuts');
790    INSERT INTO t1 VALUES(1866, 'Hertzog');
791  }
792  faultsim_save_and_close
793} {}
794do_faultsim_test pagerfault-17a -prep {
795  faultsim_restore_and_reopen
796} -body {
797  execsql {
798    PRAGMA journal_mode = wal;
799    PRAGMA journal_mode = delete;
800  }
801} -test {
802  faultsim_test_result {0 {wal delete}}
803  faultsim_integrity_check
804}
805do_faultsim_test pagerfault-17b -prep {
806  faultsim_restore_and_reopen
807  execsql { PRAGMA synchronous = OFF }
808} -body {
809  execsql {
810    PRAGMA journal_mode = wal;
811    INSERT INTO t1 VALUES(22, 'Clarke');
812    PRAGMA journal_mode = delete;
813  }
814} -test {
815  faultsim_test_result {0 {wal delete}}
816  faultsim_integrity_check
817}
818do_faultsim_test pagerfault-17c -prep {
819  faultsim_restore_and_reopen
820  execsql {
821    PRAGMA locking_mode = exclusive;
822    PRAGMA journal_mode = wal;
823  }
824} -body {
825  execsql { PRAGMA journal_mode = delete }
826} -test {
827  faultsim_test_result {0 delete}
828  faultsim_integrity_check
829}
830do_faultsim_test pagerfault-17d -prep {
831  catch { db2 close }
832  faultsim_restore_and_reopen
833  sqlite3 db2 test.db
834  execsql { PRAGMA journal_mode = delete }
835  execsql { PRAGMA journal_mode = wal }
836  execsql { INSERT INTO t1 VALUES(99, 'Bradman') } db2
837} -body {
838  execsql { PRAGMA journal_mode = delete }
839} -test {
840  faultsim_test_result {1 {database is locked}}
841  faultsim_integrity_check
842}
843do_faultsim_test pagerfault-17e -prep {
844  catch { db2 close }
845  faultsim_restore_and_reopen
846  sqlite3 db2 test.db
847  execsql { PRAGMA journal_mode = delete }
848  execsql { PRAGMA journal_mode = wal }
849  set ::chan [launch_testfixture]
850  testfixture $::chan {
851    sqlite3 db test.db
852    db eval { INSERT INTO t1 VALUES(101, 'Latham') }
853  }
854  catch { testfixture $::chan sqlite_abort }
855  catch { close $::chan }
856} -body {
857  execsql { PRAGMA journal_mode = delete }
858} -test {
859  faultsim_test_result {0 delete}
860  faultsim_integrity_check
861}
862
863#-------------------------------------------------------------------------
864# Test fault-injection when changing from journal_mode=persist to
865# journal_mode=delete (this involves deleting the journal file).
866#
867do_test pagerfault-18-pre1 {
868  faultsim_delete_and_reopen
869  execsql {
870    CREATE TABLE qq(x);
871    INSERT INTO qq VALUES('Herbert');
872    INSERT INTO qq VALUES('Macalister');
873    INSERT INTO qq VALUES('Mackenzie');
874    INSERT INTO qq VALUES('Lilley');
875    INSERT INTO qq VALUES('Palmer');
876  }
877  faultsim_save_and_close
878} {}
879do_faultsim_test pagerfault-18 -prep {
880  faultsim_restore_and_reopen
881  execsql {
882    PRAGMA journal_mode = PERSIST;
883    INSERT INTO qq VALUES('Beatty');
884  }
885} -body {
886  execsql { PRAGMA journal_mode = delete }
887} -test {
888  faultsim_test_result {0 delete}
889  faultsim_integrity_check
890}
891
892do_faultsim_test pagerfault-19a -prep {
893  sqlite3 db :memory:
894  db func a_string a_string
895  execsql {
896    PRAGMA auto_vacuum = FULL;
897    BEGIN;
898      CREATE TABLE t1(a, b);
899      INSERT INTO t1 VALUES(a_string(5000), a_string(6000));
900    COMMIT;
901  }
902} -body {
903  execsql {
904    CREATE TABLE t2(a, b);
905    INSERT INTO t2 SELECT * FROM t1;
906    DELETE FROM t1;
907  }
908} -test {
909  faultsim_test_result {0 {}}
910}
911
912do_test pagerfault-19-pre1 {
913  faultsim_delete_and_reopen
914  execsql {
915    PRAGMA auto_vacuum = FULL;
916    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1);
917    CREATE TABLE t2(x); INSERT INTO t2 VALUES(2);
918    CREATE TABLE t3(x); INSERT INTO t3 VALUES(3);
919    CREATE TABLE t4(x); INSERT INTO t4 VALUES(4);
920    CREATE TABLE t5(x); INSERT INTO t5 VALUES(5);
921    CREATE TABLE t6(x); INSERT INTO t6 VALUES(6);
922  }
923  faultsim_save_and_close
924} {}
925do_faultsim_test pagerfault-19b -prep {
926  faultsim_restore_and_reopen
927} -body {
928  execsql {
929    BEGIN;
930      UPDATE t4 SET x = x+1;
931      UPDATE t6 SET x = x+1;
932      SAVEPOINT one;
933        UPDATE t3 SET x = x+1;
934        SAVEPOINT two;
935          DROP TABLE t2;
936      ROLLBACK TO one;
937    COMMIT;
938    SELECT * FROM t3;
939    SELECT * FROM t4;
940    SELECT * FROM t6;
941  }
942} -test {
943  faultsim_test_result {0 {3 5 7}}
944}
945
946#-------------------------------------------------------------------------
947# This tests fault-injection in a special case in the auto-vacuum code.
948#
949do_test pagerfault-20-pre1 {
950  faultsim_delete_and_reopen
951  execsql {
952    PRAGMA cache_size = 10;
953    PRAGMA auto_vacuum = FULL;
954    CREATE TABLE t0(a, b);
955  }
956  faultsim_save_and_close
957} {}
958do_faultsim_test pagerfault-20 -prep {
959  faultsim_restore_and_reopen
960} -body {
961  execsql {
962    BEGIN;
963      CREATE TABLE t1(a, b);
964      CREATE TABLE t2(a, b);
965      DROP TABLE t1;
966    COMMIT;
967  }
968} -test {
969  faultsim_test_result {0 {}}
970}
971
972do_test pagerfault-21-pre1 {
973  faultsim_delete_and_reopen
974  execsql {
975    PRAGMA cache_size = 10;
976    CREATE TABLE t0(a PRIMARY KEY, b);
977    INSERT INTO t0 VALUES(1, 2);
978  }
979  faultsim_save_and_close
980} {}
981do_faultsim_test pagerfault-21 -prep {
982  faultsim_restore_and_reopen
983} -body {
984  db eval { SELECT * FROM t0 LIMIT 1 } {
985    db eval { INSERT INTO t0 SELECT a+1, b FROM t0 }
986    db eval { INSERT INTO t0 SELECT a+2, b FROM t0 }
987  }
988} -test {
989  faultsim_test_result {0 {}}
990}
991
992
993#-------------------------------------------------------------------------
994# Test fault-injection and rollback when the nReserve header value
995# is non-zero.
996#
997do_test pagerfault-21-pre1 {
998  faultsim_delete_and_reopen
999  execsql {
1000    PRAGMA page_size = 1024;
1001    PRAGMA journal_mode = WAL;
1002    PRAGMA journal_mode = DELETE;
1003  }
1004  db close
1005  hexio_write test.db 20    10
1006  hexio_write test.db 105 03F0
1007  sqlite3 db test.db
1008  db func a_string a_string
1009  execsql {
1010    CREATE TABLE t0(a PRIMARY KEY, b UNIQUE);
1011    INSERT INTO t0 VALUES(a_string(222), a_string(333));
1012    INSERT INTO t0 VALUES(a_string(223), a_string(334));
1013    INSERT INTO t0 VALUES(a_string(224), a_string(335));
1014    INSERT INTO t0 VALUES(a_string(225), a_string(336));
1015  }
1016  faultsim_save_and_close
1017} {}
1018
1019do_faultsim_test pagerfault-21 -prep {
1020  faultsim_restore_and_reopen
1021} -body {
1022  execsql { INSERT INTO t0 SELECT a||'x', b||'x' FROM t0 }
1023} -test {
1024  faultsim_test_result {0 {}}
1025  faultsim_integrity_check
1026}
1027ifcapable crashtest {
1028  faultsim_delete_and_reopen
1029  execsql {
1030    PRAGMA page_size = 1024;
1031    PRAGMA journal_mode = WAL;
1032    PRAGMA journal_mode = DELETE;
1033  }
1034  db close
1035  hexio_write test.db 20    10
1036  hexio_write test.db 105 03F0
1037
1038  sqlite3 db test.db
1039  db func a_string a_string
1040  execsql {
1041    CREATE TABLE t0(a PRIMARY KEY, b UNIQUE);
1042    INSERT INTO t0 VALUES(a_string(222), a_string(333));
1043    INSERT INTO t0 VALUES(a_string(223), a_string(334));
1044  }
1045  faultsim_save_and_close
1046
1047  for {set iTest 1} {$iTest<50} {incr iTest} {
1048    do_test pagerfault-21.crash.$iTest.1 {
1049      crashsql -delay 1 -file test.db -seed $iTest {
1050        BEGIN;
1051          CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
1052          INSERT INTO t1 SELECT a, b FROM t0;
1053        COMMIT;
1054      }
1055    } {1 {child process exited abnormally}}
1056    do_test pagerfault-22.$iTest.2 {
1057      sqlite3 db test.db
1058      execsql { PRAGMA integrity_check }
1059    } {ok}
1060    db close
1061  }
1062}
1063
1064
1065#-------------------------------------------------------------------------
1066# When a 3.7.0 client opens a write-transaction on a database file that
1067# has been appended to or truncated by a pre-370 client, it updates
1068# the db-size in the file header immediately. This test case provokes
1069# errors during that operation.
1070#
1071do_test pagerfault-22-pre1 {
1072  faultsim_delete_and_reopen
1073  db func a_string a_string
1074  execsql {
1075    PRAGMA page_size = 1024;
1076    PRAGMA auto_vacuum = 0;
1077    CREATE TABLE t1(a);
1078    CREATE INDEX i1 ON t1(a);
1079    INSERT INTO t1 VALUES(a_string(3000));
1080    CREATE TABLE t2(a);
1081    INSERT INTO t2 VALUES(1);
1082  }
1083  db close
1084  sql36231 { INSERT INTO t1 VALUES(a_string(3000)) }
1085  faultsim_save_and_close
1086} {}
1087do_faultsim_test pagerfault-22 -prep {
1088  faultsim_restore_and_reopen
1089} -body {
1090  execsql { INSERT INTO t2 VALUES(2) }
1091  execsql { SELECT * FROM t2 }
1092} -test {
1093  faultsim_test_result {0 {1 2}}
1094  faultsim_integrity_check
1095}
1096
1097#-------------------------------------------------------------------------
1098# Provoke an OOM error during a commit of multi-file transaction. One of
1099# the databases written during the transaction is an in-memory database.
1100# This test causes rollback of the in-memory database after CommitPhaseOne()
1101# has successfully returned. i.e. the series of calls for the aborted commit
1102# is:
1103#
1104#   PagerCommitPhaseOne(<in-memory-db>)   ->   SQLITE_OK
1105#   PagerCommitPhaseOne(<file-db>)        ->   SQLITE_IOERR
1106#   PagerRollback(<in-memory-db>)
1107#   PagerRollback(<file-db>)
1108#
1109do_faultsim_test pagerfault-23 -prep {
1110  sqlite3 db :memory:
1111  foreach f [glob -nocomplain test.db*] { forcedelete $f }
1112  db eval {
1113    ATTACH 'test.db2' AS aux;
1114    CREATE TABLE t1(a, b);
1115    CREATE TABLE aux.t2(a, b);
1116  }
1117} -body {
1118  execsql {
1119    BEGIN;
1120      INSERT INTO t1 VALUES(1,2);
1121      INSERT INTO t2 VALUES(3,4);
1122    COMMIT;
1123  }
1124} -test {
1125  faultsim_test_result {0 {}}
1126  faultsim_integrity_check
1127}
1128
1129do_faultsim_test pagerfault-24 -prep {
1130  faultsim_delete_and_reopen
1131  db eval { PRAGMA temp_store = file }
1132  execsql { CREATE TABLE x(a, b) }
1133} -body {
1134  execsql { CREATE TEMP TABLE t1(a, b) }
1135} -test {
1136  faultsim_test_result {0 {}} \
1137    {1 {unable to open a temporary database file for storing temporary tables}}
1138  set ic [db eval { PRAGMA temp.integrity_check }]
1139  if {$ic != "ok"} { error "Integrity check: $ic" }
1140}
1141
1142proc lockrows {n} {
1143  if {$n==0} { return "" }
1144  db eval { SELECT * FROM t1 WHERE oid = $n } {
1145    return [lockrows [expr {$n-1}]]
1146  }
1147}
1148
1149
1150do_test pagerfault-25-pre1 {
1151  faultsim_delete_and_reopen
1152  db func a_string a_string
1153  execsql {
1154    PRAGMA page_size = 1024;
1155    PRAGMA auto_vacuum = 0;
1156    CREATE TABLE t1(a);
1157    INSERT INTO t1 VALUES(a_string(500));
1158    INSERT INTO t1 SELECT a_string(500) FROM t1;
1159    INSERT INTO t1 SELECT a_string(500) FROM t1;
1160    INSERT INTO t1 SELECT a_string(500) FROM t1;
1161    INSERT INTO t1 SELECT a_string(500) FROM t1;
1162    INSERT INTO t1 SELECT a_string(500) FROM t1;
1163  }
1164  faultsim_save_and_close
1165} {}
1166do_faultsim_test pagerfault-25 -prep {
1167  faultsim_restore_and_reopen
1168  db func a_string a_string
1169  set ::channel [db incrblob -readonly t1 a 1]
1170  execsql {
1171    PRAGMA cache_size = 10;
1172    BEGIN;
1173      INSERT INTO t1 VALUES(a_string(3000));
1174      INSERT INTO t1 VALUES(a_string(3000));
1175  }
1176} -body {
1177  lockrows 30
1178} -test {
1179  catch { lockrows 30 }
1180  catch { db eval COMMIT }
1181  close $::channel
1182  faultsim_test_result {0 {}}
1183}
1184
1185do_faultsim_test pagerfault-26 -prep {
1186  faultsim_delete_and_reopen
1187  execsql {
1188    PRAGMA page_size = 1024;
1189    PRAGMA journal_mode = truncate;
1190    PRAGMA auto_vacuum = full;
1191    PRAGMA locking_mode=exclusive;
1192    CREATE TABLE t1(a, b);
1193    INSERT INTO t1 VALUES(1, 2);
1194    PRAGMA page_size = 4096;
1195  }
1196} -body {
1197  execsql {
1198    VACUUM;
1199  }
1200} -test {
1201  faultsim_test_result {0 {}}
1202
1203  set contents [db eval {SELECT * FROM t1}]
1204  if {$contents != "1 2"} { error "Bad database contents ($contents)" }
1205
1206  if {[atomic_batch_write test.db]==0} {
1207    set sz [file size test.db]
1208    if {$testrc!=0 && $sz!=1024*3 && $sz!=4096*3} {
1209      error "Expected file size 3072 or 12288 bytes - actual size $sz bytes"
1210    }
1211    if {$testrc==0 && $sz!=4096*3} {
1212      error "Expected file size to be 12288 bytes - actual size $sz bytes"
1213    }
1214  }
1215}
1216
1217do_test pagerfault-27-pre {
1218  faultsim_delete_and_reopen
1219  db func a_string a_string
1220  execsql {
1221    PRAGMA page_size = 1024;
1222    CREATE TABLE t1(a, b);
1223    CREATE TABLE t2(a UNIQUE, b UNIQUE);
1224    INSERT INTO t2 VALUES( a_string(800), a_string(800) );
1225    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1226    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1227    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1228    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1229    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1230    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1231    INSERT INTO t1 VALUES (a_string(20000), a_string(20000));
1232  }
1233  faultsim_save_and_close
1234} {}
1235do_faultsim_test pagerfault-27 -faults ioerr-persistent -prep {
1236  faultsim_restore_and_reopen
1237  db func a_string a_string
1238  execsql {
1239    PRAGMA cache_size = 10;
1240    BEGIN EXCLUSIVE;
1241  }
1242  set ::channel [db incrblob t1 a 1]
1243} -body {
1244  puts $::channel [string repeat abc 6000]
1245  flush $::channel
1246} -test {
1247  catchsql { UPDATE t2 SET a = a_string(800), b = a_string(800) }
1248  catch { close $::channel }
1249  catchsql { ROLLBACK }
1250  faultsim_integrity_check
1251}
1252
1253
1254#-------------------------------------------------------------------------
1255#
1256do_test pagerfault-28-pre {
1257  faultsim_delete_and_reopen
1258  db func a_string a_string
1259  execsql {
1260    PRAGMA page_size = 512;
1261
1262    PRAGMA journal_mode = wal;
1263    PRAGMA wal_autocheckpoint = 0;
1264    PRAGMA cache_size = 100000;
1265
1266    BEGIN;
1267      CREATE TABLE t2(a UNIQUE, b UNIQUE);
1268      INSERT INTO t2 VALUES( a_string(800), a_string(800) );
1269      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1270      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1271      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1272      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1273      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1274      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1275      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1276      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1277      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1278      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1279      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1280    COMMIT;
1281    CREATE TABLE t1(a PRIMARY KEY, b);
1282  }
1283  expr {[file size test.db-shm] >= 96*1024}
1284} {1}
1285faultsim_save_and_close
1286
1287do_faultsim_test pagerfault-28a -faults oom* -prep {
1288  faultsim_restore_and_reopen
1289  execsql { PRAGMA mmap_size=0 }
1290
1291  sqlite3 db2 test.db
1292  db2 eval { SELECT count(*) FROM t2 }
1293
1294  db func a_string a_string
1295  execsql {
1296    BEGIN;
1297      INSERT INTO t1 VALUES(a_string(2000), a_string(2000));
1298      INSERT INTO t1 VALUES(a_string(2000), a_string(2000));
1299  }
1300  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY a" -1 DUMMY]
1301  sqlite3_step $::STMT
1302} -body {
1303  execsql { ROLLBACK }
1304} -test {
1305  db2 close
1306  sqlite3_finalize $::STMT
1307  catchsql { ROLLBACK }
1308  faultsim_integrity_check
1309}
1310
1311faultsim_restore_and_reopen
1312sqlite3 db2 test.db
1313db2 eval {SELECT count(*) FROM t2}
1314db close
1315
1316do_faultsim_test pagerfault-28b -faults oom* -prep {
1317  sqlite3 db test.db
1318} -body {
1319  execsql { SELECT count(*) FROM t2 }
1320} -test {
1321  faultsim_test_result {0 2048}
1322  db close
1323}
1324
1325db2 close
1326
1327#-------------------------------------------------------------------------
1328# Try this:
1329#
1330#    1) Put the pager in ERROR state (error during rollback)
1331#
1332#    2) Next time the connection is used inject errors into all xWrite() and
1333#       xUnlock() calls. This causes the hot-journal rollback to fail and
1334#       the pager to declare its locking state UNKNOWN.
1335#
1336#    3) Same again.
1337#
1338#    4a) Stop injecting errors. Allow the rollback to succeed. Check that
1339#        the database is Ok. Or,
1340#
1341#    4b) Close and reopen the db. Check that the db is Ok.
1342#
1343proc custom_injectinstall {} {
1344  testvfs custom -default true
1345  custom filter {xWrite xUnlock}
1346}
1347proc custom_injectuninstall {} {
1348  catch {db  close}
1349  catch {db2 close}
1350  custom delete
1351}
1352proc custom_injectstart {iFail} {
1353  custom ioerr $iFail 1
1354}
1355proc custom_injectstop {} {
1356  custom ioerr
1357}
1358set ::FAULTSIM(custom)          [list      \
1359  -injectinstall   custom_injectinstall    \
1360  -injectstart     custom_injectstart      \
1361  -injectstop      custom_injectstop       \
1362  -injecterrlist   {{1 {disk I/O error}}}  \
1363  -injectuninstall custom_injectuninstall  \
1364]
1365
1366do_test pagerfault-29-pre {
1367  faultsim_delete_and_reopen
1368  db func a_string a_string
1369  execsql {
1370    PRAGMA page_size = 1024;
1371    PRAGMA cache_size = 5;
1372
1373    BEGIN;
1374      CREATE TABLE t2(a UNIQUE, b UNIQUE);
1375      INSERT INTO t2 VALUES( a_string(800), a_string(800) );
1376      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1377      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1378      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1379      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
1380    COMMIT;
1381  }
1382  expr {[file size test.db] >= 50*1024}
1383} {1}
1384faultsim_save_and_close
1385foreach {tn tt} {
1386  29 { catchsql ROLLBACK }
1387  30 { db close ; sqlite3 db test.db }
1388} {
1389  do_faultsim_test pagerfault-$tn -faults custom -prep {
1390    faultsim_restore_and_reopen
1391      db func a_string a_string
1392      execsql {
1393        PRAGMA cache_size = 5;
1394        BEGIN;
1395        UPDATE t2 SET a = a_string(799);
1396      }
1397  } -body {
1398    catchsql ROLLBACK
1399    catchsql ROLLBACK
1400    catchsql ROLLBACK
1401  } -test {
1402    eval $::tt
1403    if {"ok" != [db one {PRAGMA integrity_check}]} {
1404      error "integrity check failed"
1405    }
1406  }
1407}
1408
1409do_test pagerfault-31-pre {
1410  sqlite3_shutdown
1411  sqlite3_config_uri 1
1412} {SQLITE_OK}
1413do_faultsim_test pagerfault-31 -faults oom* -body {
1414  sqlite3 db {file:one?mode=memory&cache=shared}
1415  db eval {
1416    CREATE TABLE t1(x);
1417    INSERT INTO t1 VALUES(1);
1418    SELECT * FROM t1;
1419  }
1420} -test {
1421  faultsim_test_result {0 1} {1 {}}
1422  catch { db close }
1423}
1424sqlite3_shutdown
1425sqlite3_config_uri 0
1426
1427do_test pagerfault-32-pre {
1428  reset_db
1429  execsql {
1430    CREATE TABLE t1(x);
1431    INSERT INTO t1 VALUES('one');
1432  }
1433} {}
1434faultsim_save_and_close
1435
1436do_faultsim_test pagerfault-32 -prep {
1437  faultsim_restore_and_reopen
1438  db eval { SELECT * FROM t1; }
1439} -body {
1440  execsql { SELECT * FROM t1; }
1441} -test {
1442  faultsim_test_result {0 one}
1443}
1444sqlite3_shutdown
1445sqlite3_config_uri 0
1446
1447do_faultsim_test pagerfault-33a -prep {
1448  sqlite3 db :memory:
1449  execsql {
1450    CREATE TABLE t1(a, b);
1451    INSERT INTO t1 VALUES(1, 2);
1452  }
1453} -body {
1454  execsql { VACUUM }
1455} -test {
1456  faultsim_test_result {0 {}}
1457}
1458do_faultsim_test pagerfault-33b -prep {
1459  sqlite3 db ""
1460  execsql {
1461    CREATE TABLE t1(a, b);
1462    INSERT INTO t1 VALUES(1, 2);
1463  }
1464} -body {
1465  execsql { VACUUM }
1466} -test {
1467  faultsim_test_result {0 {}}
1468}
1469
1470do_test pagerfault-34-pre {
1471  reset_db
1472  execsql {
1473    CREATE TABLE t1(x PRIMARY KEY);
1474  }
1475} {}
1476faultsim_save_and_close
1477do_faultsim_test pagerfault-34 -prep {
1478  faultsim_restore_and_reopen
1479  execsql {
1480    BEGIN;
1481      INSERT INTO t1 VALUES( randomblob(4000) );
1482      DELETE FROM t1;
1483  }
1484} -body {
1485  execsql COMMIT
1486} -test {
1487  faultsim_test_result {0 {}}
1488}
1489
1490do_test pagerfault-35-pre {
1491  faultsim_delete_and_reopen
1492  execsql {
1493    CREATE TABLE t1(x PRIMARY KEY, y);
1494    INSERT INTO t1 VALUES(randomblob(200), randomblob(200));
1495    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
1496    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
1497    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
1498  }
1499  faultsim_save_and_close
1500} {}
1501testvfs tv -default 1
1502tv sectorsize 8192;
1503tv devchar [list]
1504do_faultsim_test pagerfault-35 -prep {
1505  faultsim_restore_and_reopen
1506} -body {
1507  execsql { UPDATE t1 SET x=randomblob(200) }
1508} -test {
1509  faultsim_test_result {0 {}}
1510}
1511catch {db close}
1512tv delete
1513
1514sqlite3_shutdown
1515sqlite3_config_uri 1
1516do_test pagerfault-36-pre {
1517  faultsim_delete_and_reopen
1518  execsql {
1519    CREATE TABLE t1(x PRIMARY KEY, y);
1520    INSERT INTO t1 VALUES(randomblob(200), randomblob(200));
1521    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
1522    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
1523    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
1524  }
1525  faultsim_save_and_close
1526} {}
1527do_faultsim_test pagerfault-36 -prep {
1528  faultsim_restore
1529  sqlite3 db file:test.db?cache=shared
1530  sqlite3 db2 file:test.db?cache=shared
1531  db2 eval {
1532    BEGIN;
1533    SELECT count(*) FROM sqlite_master;
1534  }
1535  db eval {
1536    PRAGMA cache_size = 1;
1537    BEGIN;
1538      UPDATE t1 SET x = randomblob(200);
1539  }
1540} -body {
1541  execsql ROLLBACK db
1542} -test {
1543  catch { db eval {UPDATE t1 SET x = randomblob(200)} }
1544  faultsim_test_result {0 {}}
1545  catch { db close }
1546  catch { db2 close }
1547}
1548
1549sqlite3_shutdown
1550sqlite3_config_uri 0
1551sqlite3_initialize
1552
1553finish_test
1554