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 #***********************************************************************
12 # Test that it is possible to have two open blob handles on a single
15 # $Id: incrblob2.test,v 1.11 2009/06/29 06:00:37 danielk1977 Exp $
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
21 ifcapable {!autovacuum || !pragma || !incrblob} {
26 do_test incrblob2-1.0 {
28 CREATE TABLE blobs(id INTEGER PRIMARY KEY, data BLOB);
29 INSERT INTO blobs VALUES(NULL, zeroblob(5000));
30 INSERT INTO blobs VALUES(NULL, zeroblob(5000));
31 INSERT INTO blobs VALUES(NULL, zeroblob(5000));
32 INSERT INTO blobs VALUES(NULL, zeroblob(5000));
36 foreach iOffset [list 0 256 4094] {
37 do_test incrblob2-1.$iOffset.1 {
38 set fd [db incrblob blobs data 1]
39 puts $fd "[string repeat x $iOffset]SQLite version 3.6.0"
43 do_test incrblob2-1.$iOffset.2 {
44 set fd1 [db incrblob blobs data 1]
45 set fd2 [db incrblob blobs data 1]
46 fconfigure $fd1 -buffering none
47 fconfigure $fd2 -buffering none
49 seek $fd2 $iOffset start
50 seek $fd1 $iOffset start
55 do_test incrblob2-1.$iOffset.3 {
59 do_test incrblob2-1.$iOffset.4 {
60 seek $fd2 $iOffset start
61 seek $fd1 $iOffset start
62 puts -nonewline $fd2 "etiLQS"
66 do_test incrblob2-1.$iOffset.5 {
67 seek $fd1 $iOffset start
71 do_test incrblob2-1.$iOffset.6 {
72 seek $fd2 $iOffset start
76 do_test incrblob2-1.$iOffset.7 {
77 seek $fd1 $iOffset start
81 do_test incrblob2-1.$iOffset.8 {
87 #--------------------------------------------------------------------------
89 foreach iOffset [list 0 256 4094] {
91 do_test incrblob2-2.$iOffset.1 {
92 set fd1 [db incrblob blobs data 1]
93 seek $fd1 [expr $iOffset - 5000] end
94 fconfigure $fd1 -buffering none
96 set fd2 [db incrblob blobs data 1]
97 seek $fd2 [expr $iOffset - 5000] end
98 fconfigure $fd2 -buffering none
100 puts -nonewline $fd1 "123456"
103 do_test incrblob2-2.$iOffset.2 {
107 do_test incrblob2-2.$iOffset.3 {
113 do_test incrblob2-3.1 {
114 set fd1 [db incrblob blobs data 1]
115 fconfigure $fd1 -buffering none
117 do_test incrblob2-3.2 {
119 INSERT INTO blobs VALUES(5, zeroblob(10240));
122 do_test incrblob2-3.3 {
123 set rc [catch { read $fd1 6 } msg]
126 do_test incrblob2-3.4 {
130 #--------------------------------------------------------------------------
131 # The following tests - incrblob2-4.* - test that blob handles are
132 # invalidated at the correct times.
134 do_test incrblob2-4.1 {
135 unset -nocomplain data
137 db eval { CREATE TABLE t1(id INTEGER PRIMARY KEY, data BLOB); }
138 for {set ii 1} {$ii < 100} {incr ii} {
139 set data [string repeat "blob$ii" 500]
140 db eval { INSERT INTO t1 VALUES($ii, $data) }
145 proc aborted_handles {} {
149 for {set ii 1} {$ii < 100} {incr ii} {
151 set nByte [string length $str]
152 set iOffset [expr $nByte * $ii * 2]
154 set rc [catch {sqlite3_blob_read $handles($ii) $iOffset $nByte} msg]
155 if {$rc && $msg eq "SQLITE_ABORT"} {
158 if {$rc || $msg ne $str} {
159 error "blob $ii: $msg"
166 do_test incrblob2-4.2 {
167 for {set ii 1} {$ii < 100} {incr ii} {
168 set handles($ii) [db incrblob t1 data $ii]
173 # Update row 3. This should abort handle 3 but leave all others untouched.
175 do_test incrblob2-4.3 {
176 db eval {UPDATE t1 SET data = data || '' WHERE id = 3}
180 # Test that a write to handle 3 also returns SQLITE_ABORT.
182 do_test incrblob2-4.3.1 {
183 set rc [catch {sqlite3_blob_write $::handles(3) 10 HELLO} msg]
187 # Delete row 14. This should abort handle 6 but leave all others untouched.
189 do_test incrblob2-4.4 {
190 db eval {DELETE FROM t1 WHERE id = 14}
194 # Change the rowid of row 15 to 102. Should abort handle 15.
196 do_test incrblob2-4.5 {
197 db eval {UPDATE t1 SET id = 102 WHERE id = 15}
201 # Clobber row 92 using INSERT OR REPLACE.
203 do_test incrblob2-4.6 {
204 db eval {INSERT OR REPLACE INTO t1 VALUES(92, zeroblob(1000))}
208 # Clobber row 65 using UPDATE OR REPLACE on row 35. This should abort
211 do_test incrblob2-4.7 {
212 db eval {UPDATE OR REPLACE t1 SET id = 65 WHERE id = 35}
216 # Insert a couple of new rows. This should not invalidate any handles.
218 do_test incrblob2-4.9 {
219 db eval {INSERT INTO t1 SELECT NULL, data FROM t1}
223 # Delete all rows from 1 to 25. This should abort all handles up to 25.
225 do_test incrblob2-4.9 {
226 db eval {DELETE FROM t1 WHERE id >=1 AND id <= 25}
228 } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 35 65 92}
230 # Delete the whole table (this will use sqlite3BtreeClearTable()). All handles
231 # should now be aborted.
233 do_test incrblob2-4.10 {
234 db eval {DELETE FROM t1}
236 } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99}
238 do_test incrblob2-4.1.X {
239 for {set ii 1} {$ii < 100} {incr ii} {
244 #--------------------------------------------------------------------------
245 # The following tests - incrblob2-5.* - test that in shared cache an open
246 # blob handle counts as a read-lock on its table.
248 ifcapable shared_cache {
250 set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
252 do_test incrblob2-5.1 {
257 INSERT INTO t1 VALUES(1, 'abcde');
261 do_test incrblob2-5.2 {
262 catchsql { INSERT INTO t1 VALUES(2, 'fghij') } db2
265 do_test incrblob2-5.3 {
266 set blob [db incrblob t1 data 1]
267 catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
268 } {1 {database table is locked}}
270 do_test incrblob2-5.4 {
273 catchsql { INSERT INTO t1 VALUES(4, 'pqrst') } db2
276 do_test incrblob2-5.5 {
277 set rc [catch { db incrblob -readonly t1 data 1 } msg]
279 } {1 {database table is locked: t1}}
281 do_test incrblob2-5.6 {
282 execsql { PRAGMA read_uncommitted=1 }
283 set blob [db incrblob -readonly t1 data 4]
287 do_test incrblob2-5.7 {
288 catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
291 do_test incrblob2-5.8 {
297 sqlite3_enable_shared_cache $::enable_shared_cache
300 #--------------------------------------------------------------------------
301 # The following tests - incrblob2-6.* - test a specific scenario that might
302 # be causing an error.
305 do_test incrblob2-6.1 {
308 INSERT INTO t1 VALUES(1, zeroblob(100));
311 set rdHandle [db incrblob -readonly t1 data 1]
312 set wrHandle [db incrblob t1 data 1]
314 sqlite3_blob_read $rdHandle 0 100
316 sqlite3_blob_write $wrHandle 0 ABCDEF
322 do_test incrblob2-6.2 {
323 set rdHandle [db incrblob -readonly t1 data 1]
324 sqlite3_blob_read $rdHandle 0 2
327 do_test incrblob2-6.3 {
328 set wrHandle [db incrblob t1 data 1]
329 sqlite3_blob_write $wrHandle 0 ZZZZZZZZZZ
330 sqlite3_blob_read $rdHandle 2 4
333 do_test incrblob2-6.4 {
338 sqlite3_memory_highwater 1
339 do_test incrblob2-7.1 {
341 CREATE TABLE t2(B BLOB);
342 INSERT INTO t2 VALUES(zeroblob(10 * 1024 * 1024));
344 expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
347 do_test incrblob2-7.2 {
348 set h [db incrblob t2 B 1]
349 expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
352 do_test incrblob2-7.3 {
355 } [expr 10 * 1024 * 1024]
357 do_test incrblob2-7.4 {
358 expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
361 do_test incrblob2-7.5 {
365 #---------------------------------------------------------------------------
366 # The following tests, incrblob2-8.*, test that nothing terrible happens
367 # when a statement transaction is rolled back while there are open
368 # incremental-blob handles. At one point an assert() was failing when
369 # this was attempted.
371 do_test incrblob2-8.1 {
373 set h [db incrblob t2 B 1]
375 db eval {SELECT rowid FROM t2} { execsql "DROP TABLE t2" }
378 } {1 {database table is locked}}
379 do_test incrblob2-8.2 {
383 do_test incrblob2-8.3 {
385 CREATE TABLE t3(a INTEGER UNIQUE, b TEXT);
386 INSERT INTO t3 VALUES(1, 'aaaaaaaaaaaaaaaaaaaa');
387 INSERT INTO t3 VALUES(2, 'bbbbbbbbbbbbbbbbbbbb');
388 INSERT INTO t3 VALUES(3, 'cccccccccccccccccccc');
389 INSERT INTO t3 VALUES(4, 'dddddddddddddddddddd');
390 INSERT INTO t3 VALUES(5, 'eeeeeeeeeeeeeeeeeeee');
393 do_test incrblob2-8.4 {
395 set h [db incrblob t3 b 3]
396 sqlite3_blob_read $h 0 20
397 } {cccccccccccccccccccc}
398 do_test incrblob2-8.5 {
399 catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
400 } {1 {column a is not unique}}
401 do_test incrblob2-8.6 {
402 catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
403 } {1 {column a is not unique}}
404 do_test incrblob2-8.7 {
405 sqlite3_blob_read $h 0 20
406 } {cccccccccccccccccccc}
407 do_test incrblob2-8.8 {
408 catchsql {UPDATE t3 SET a = 6 WHERE a = 3 OR a = 5}
409 } {1 {column a is not unique}}
410 do_test incrblob2-8.9 {
411 set rc [catch {sqlite3_blob_read $h 0 20} msg]
414 do_test incrblob2-8.X {