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1 # 2003 July 1 | |
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 script is testing the ATTACH and DETACH commands | |
13 # and related functionality. | |
14 # | |
15 # $Id: attach2.test,v 1.38 2007/12/13 21:54:11 drh Exp $ | |
16 # | |
17 | |
18 set testdir [file dirname $argv0] | |
19 source $testdir/tester.tcl | |
20 | |
21 ifcapable !attach { | |
22 finish_test | |
23 return | |
24 } | |
25 | |
26 # Ticket #354 | |
27 # | |
28 # Databases test.db and test2.db contain identical schemas. Make | |
29 # sure we can attach test2.db from test.db. | |
30 # | |
31 do_test attach2-1.1 { | |
32 db eval { | |
33 CREATE TABLE t1(a,b); | |
34 CREATE INDEX x1 ON t1(a); | |
35 } | |
36 forcedelete test2.db | |
37 forcedelete test2.db-journal | |
38 sqlite3 db2 test2.db | |
39 db2 eval { | |
40 CREATE TABLE t1(a,b); | |
41 CREATE INDEX x1 ON t1(a); | |
42 } | |
43 catchsql { | |
44 ATTACH 'test2.db' AS t2; | |
45 } | |
46 } {0 {}} | |
47 | |
48 # Ticket #514 | |
49 # | |
50 proc db_list {db} { | |
51 set list {} | |
52 foreach {idx name file} [execsql {PRAGMA database_list} $db] { | |
53 lappend list $idx $name | |
54 } | |
55 return $list | |
56 } | |
57 db eval {DETACH t2} | |
58 do_test attach2-2.1 { | |
59 # lock test2.db then try to attach it. This is no longer an error because | |
60 # db2 just RESERVES the database. It does not obtain a write-lock until | |
61 # we COMMIT. | |
62 db2 eval {BEGIN} | |
63 db2 eval {UPDATE t1 SET a = 0 WHERE 0} | |
64 catchsql { | |
65 ATTACH 'test2.db' AS t2; | |
66 } | |
67 } {0 {}} | |
68 ifcapable schema_pragmas { | |
69 do_test attach2-2.2 { | |
70 # make sure test2.db did get attached. | |
71 db_list db | |
72 } {0 main 2 t2} | |
73 } ;# ifcapable schema_pragmas | |
74 db2 eval {COMMIT} | |
75 | |
76 do_test attach2-2.5 { | |
77 # Make sure we can read test2.db from db | |
78 catchsql { | |
79 SELECT name FROM t2.sqlite_master; | |
80 } | |
81 } {0 {t1 x1}} | |
82 do_test attach2-2.6 { | |
83 # lock test2.db and try to read from it. This should still work because | |
84 # the lock is only a RESERVED lock which does not prevent reading. | |
85 # | |
86 db2 eval BEGIN | |
87 db2 eval {UPDATE t1 SET a = 0 WHERE 0} | |
88 catchsql { | |
89 SELECT name FROM t2.sqlite_master; | |
90 } | |
91 } {0 {t1 x1}} | |
92 do_test attach2-2.7 { | |
93 # but we can still read from test1.db even though test2.db is locked. | |
94 catchsql { | |
95 SELECT name FROM main.sqlite_master; | |
96 } | |
97 } {0 {t1 x1}} | |
98 do_test attach2-2.8 { | |
99 # start a transaction on test.db even though test2.db is locked. | |
100 catchsql { | |
101 BEGIN; | |
102 INSERT INTO t1 VALUES(8,9); | |
103 } | |
104 } {0 {}} | |
105 do_test attach2-2.9 { | |
106 execsql { | |
107 SELECT * FROM t1 | |
108 } | |
109 } {8 9} | |
110 do_test attach2-2.10 { | |
111 # now try to write to test2.db. the write should fail | |
112 catchsql { | |
113 INSERT INTO t2.t1 VALUES(1,2); | |
114 } | |
115 } {1 {database is locked}} | |
116 do_test attach2-2.11 { | |
117 # when the write failed in the previous test, the transaction should | |
118 # have rolled back. | |
119 # | |
120 # Update for version 3: A transaction is no longer rolled back if a | |
121 # database is found to be busy. | |
122 execsql {rollback} | |
123 db2 eval ROLLBACK | |
124 execsql { | |
125 SELECT * FROM t1 | |
126 } | |
127 } {} | |
128 do_test attach2-2.12 { | |
129 catchsql { | |
130 COMMIT | |
131 } | |
132 } {1 {cannot commit - no transaction is active}} | |
133 | |
134 # Ticket #574: Make sure it works using the non-callback API | |
135 # | |
136 do_test attach2-3.1 { | |
137 set DB [sqlite3_connection_pointer db] | |
138 set rc [catch {sqlite3_prepare $DB "ATTACH 'test2.db' AS t2" -1 TAIL} VM] | |
139 if {$rc} {lappend rc $VM} | |
140 sqlite3_step $VM | |
141 sqlite3_finalize $VM | |
142 set rc | |
143 } {0} | |
144 do_test attach2-3.2 { | |
145 set rc [catch {sqlite3_prepare $DB "DETACH t2" -1 TAIL} VM] | |
146 if {$rc} {lappend rc $VM} | |
147 sqlite3_step $VM | |
148 sqlite3_finalize $VM | |
149 set rc | |
150 } {0} | |
151 | |
152 db close | |
153 for {set i 2} {$i<=15} {incr i} { | |
154 catch {db$i close} | |
155 } | |
156 | |
157 # A procedure to verify the status of locks on a database. | |
158 # | |
159 proc lock_status {testnum db expected_result} { | |
160 # If the database was compiled with OMIT_TEMPDB set, then | |
161 # the lock_status list will not contain an entry for the temp | |
162 # db. But the test code doesn't know this, so its easiest | |
163 # to filter it out of the $expected_result list here. | |
164 ifcapable !tempdb { | |
165 set expected_result [concat \ | |
166 [lrange $expected_result 0 1] \ | |
167 [lrange $expected_result 4 end] \ | |
168 ] | |
169 } | |
170 do_test attach2-$testnum [subst { | |
171 $db cache flush ;# The lock_status pragma should not be cached | |
172 execsql {PRAGMA lock_status} $db | |
173 }] $expected_result | |
174 } | |
175 set sqlite_os_trace 0 | |
176 | |
177 # Tests attach2-4.* test that read-locks work correctly with attached | |
178 # databases. | |
179 do_test attach2-4.1 { | |
180 sqlite3 db test.db | |
181 sqlite3 db2 test.db | |
182 execsql {ATTACH 'test2.db' as file2} | |
183 execsql {ATTACH 'test2.db' as file2} db2 | |
184 } {} | |
185 | |
186 lock_status 4.1.1 db {main unlocked temp closed file2 unlocked} | |
187 lock_status 4.1.2 db2 {main unlocked temp closed file2 unlocked} | |
188 | |
189 do_test attach2-4.2 { | |
190 # Handle 'db' read-locks test.db | |
191 execsql {BEGIN} | |
192 execsql {SELECT * FROM t1} | |
193 # Lock status: | |
194 # db - shared(main) | |
195 # db2 - | |
196 } {} | |
197 | |
198 lock_status 4.2.1 db {main shared temp closed file2 unlocked} | |
199 lock_status 4.2.2 db2 {main unlocked temp closed file2 unlocked} | |
200 | |
201 do_test attach2-4.3 { | |
202 # The read lock held by db does not prevent db2 from reading test.db | |
203 execsql {SELECT * FROM t1} db2 | |
204 } {} | |
205 | |
206 lock_status 4.3.1 db {main shared temp closed file2 unlocked} | |
207 lock_status 4.3.2 db2 {main unlocked temp closed file2 unlocked} | |
208 | |
209 do_test attach2-4.4 { | |
210 # db is holding a read lock on test.db, so we should not be able | |
211 # to commit a write to test.db from db2 | |
212 catchsql { | |
213 INSERT INTO t1 VALUES(1, 2) | |
214 } db2 | |
215 } {1 {database is locked}} | |
216 | |
217 lock_status 4.4.1 db {main shared temp closed file2 unlocked} | |
218 lock_status 4.4.2 db2 {main unlocked temp closed file2 unlocked} | |
219 | |
220 # We have to make sure that the cache_size and the soft_heap_limit | |
221 # are large enough to hold the entire change in memory. If either | |
222 # is set too small, then changes will spill to the database, forcing | |
223 # a reserved lock to promote to exclusive. That will mess up our | |
224 # test results. | |
225 | |
226 set soft_limit [sqlite3_soft_heap_limit 0] | |
227 | |
228 | |
229 do_test attach2-4.5 { | |
230 # Handle 'db2' reserves file2. | |
231 execsql {BEGIN} db2 | |
232 execsql {INSERT INTO file2.t1 VALUES(1, 2)} db2 | |
233 # Lock status: | |
234 # db - shared(main) | |
235 # db2 - reserved(file2) | |
236 } {} | |
237 | |
238 lock_status 4.5.1 db {main shared temp closed file2 unlocked} | |
239 lock_status 4.5.2 db2 {main unlocked temp closed file2 reserved} | |
240 | |
241 do_test attach2-4.6.1 { | |
242 # Reads are allowed against a reserved database. | |
243 catchsql { | |
244 SELECT * FROM file2.t1; | |
245 } | |
246 # Lock status: | |
247 # db - shared(main), shared(file2) | |
248 # db2 - reserved(file2) | |
249 } {0 {}} | |
250 | |
251 lock_status 4.6.1.1 db {main shared temp closed file2 shared} | |
252 lock_status 4.6.1.2 db2 {main unlocked temp closed file2 reserved} | |
253 | |
254 do_test attach2-4.6.2 { | |
255 # Writes against a reserved database are not allowed. | |
256 catchsql { | |
257 UPDATE file2.t1 SET a=0; | |
258 } | |
259 } {1 {database is locked}} | |
260 | |
261 lock_status 4.6.2.1 db {main shared temp closed file2 shared} | |
262 lock_status 4.6.2.2 db2 {main unlocked temp closed file2 reserved} | |
263 | |
264 do_test attach2-4.7 { | |
265 # Ensure handle 'db' retains the lock on the main file after | |
266 # failing to obtain a write-lock on file2. | |
267 catchsql { | |
268 INSERT INTO t1 VALUES(1, 2) | |
269 } db2 | |
270 } {0 {}} | |
271 | |
272 lock_status 4.7.1 db {main shared temp closed file2 shared} | |
273 lock_status 4.7.2 db2 {main reserved temp closed file2 reserved} | |
274 | |
275 do_test attach2-4.8 { | |
276 # We should still be able to read test.db from db2 | |
277 execsql {SELECT * FROM t1} db2 | |
278 } {1 2} | |
279 | |
280 lock_status 4.8.1 db {main shared temp closed file2 shared} | |
281 lock_status 4.8.2 db2 {main reserved temp closed file2 reserved} | |
282 | |
283 do_test attach2-4.9 { | |
284 # Try to upgrade the handle 'db' lock. | |
285 catchsql { | |
286 INSERT INTO t1 VALUES(1, 2) | |
287 } | |
288 } {1 {database is locked}} | |
289 | |
290 lock_status 4.9.1 db {main shared temp closed file2 shared} | |
291 lock_status 4.9.2 db2 {main reserved temp closed file2 reserved} | |
292 | |
293 do_test attach2-4.10 { | |
294 # We cannot commit db2 while db is holding a read-lock | |
295 catchsql {COMMIT} db2 | |
296 } {1 {database is locked}} | |
297 | |
298 lock_status 4.10.1 db {main shared temp closed file2 shared} | |
299 lock_status 4.10.2 db2 {main pending temp closed file2 reserved} | |
300 | |
301 set sqlite_os_trace 0 | |
302 do_test attach2-4.11 { | |
303 # db is able to commit. | |
304 catchsql {COMMIT} | |
305 } {0 {}} | |
306 | |
307 lock_status 4.11.1 db {main unlocked temp closed file2 unlocked} | |
308 lock_status 4.11.2 db2 {main pending temp closed file2 reserved} | |
309 | |
310 do_test attach2-4.12 { | |
311 # Now we can commit db2 | |
312 catchsql {COMMIT} db2 | |
313 } {0 {}} | |
314 | |
315 lock_status 4.12.1 db {main unlocked temp closed file2 unlocked} | |
316 lock_status 4.12.2 db2 {main unlocked temp closed file2 unlocked} | |
317 | |
318 do_test attach2-4.13 { | |
319 execsql {SELECT * FROM file2.t1} | |
320 } {1 2} | |
321 do_test attach2-4.14 { | |
322 execsql {INSERT INTO t1 VALUES(1, 2)} | |
323 } {} | |
324 do_test attach2-4.15 { | |
325 execsql {SELECT * FROM t1} db2 | |
326 } {1 2 1 2} | |
327 | |
328 db close | |
329 db2 close | |
330 forcedelete test2.db | |
331 sqlite3_soft_heap_limit $soft_limit | |
332 | |
333 # These tests - attach2-5.* - check that the master journal file is deleted | |
334 # correctly when a multi-file transaction is committed or rolled back. | |
335 # | |
336 # Update: It's not actually created if a rollback occurs, so that test | |
337 # doesn't really prove too much. | |
338 foreach f [glob test.db*] {forcedelete $f} | |
339 do_test attach2-5.1 { | |
340 sqlite3 db test.db | |
341 execsql { | |
342 ATTACH 'test.db2' AS aux; | |
343 } | |
344 } {} | |
345 do_test attach2-5.2 { | |
346 execsql { | |
347 BEGIN; | |
348 CREATE TABLE tbl(a, b, c); | |
349 CREATE TABLE aux.tbl(a, b, c); | |
350 COMMIT; | |
351 } | |
352 } {} | |
353 do_test attach2-5.3 { | |
354 lsort [glob test.db*] | |
355 } {test.db test.db2} | |
356 do_test attach2-5.4 { | |
357 execsql { | |
358 BEGIN; | |
359 DROP TABLE aux.tbl; | |
360 DROP TABLE tbl; | |
361 ROLLBACK; | |
362 } | |
363 } {} | |
364 do_test attach2-5.5 { | |
365 lsort [glob test.db*] | |
366 } {test.db test.db2} | |
367 | |
368 # Check that a database cannot be ATTACHed or DETACHed during a transaction. | |
369 do_test attach2-6.1 { | |
370 execsql { | |
371 BEGIN; | |
372 } | |
373 } {} | |
374 do_test attach2-6.2 { | |
375 catchsql { | |
376 ATTACH 'test3.db' as aux2; | |
377 } | |
378 } {1 {cannot ATTACH database within transaction}} | |
379 | |
380 # EVIDENCE-OF: R-59740-55581 This statement will fail if SQLite is in | |
381 # the middle of a transaction. | |
382 # | |
383 do_test attach2-6.3 { | |
384 catchsql { | |
385 DETACH aux; | |
386 } | |
387 } {1 {cannot DETACH database within transaction}} | |
388 do_test attach2-6.4 { | |
389 execsql { | |
390 COMMIT; | |
391 DETACH aux; | |
392 } | |
393 } {} | |
394 | |
395 db close | |
396 | |
397 finish_test | |
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