1: # 2005 Jan 24
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.
12: #
13: # This file tests the various conditions under which an SQLITE_SCHEMA
14: # error should be returned.
15: #
16: # $Id: schema.test,v 1.1.1.1 2012/02/21 17:04:16 misho Exp $
17:
18: #---------------------------------------------------------------------
19: # When any of the following types of SQL statements or actions are
20: # executed, all pre-compiled statements are invalidated. An attempt
21: # to execute an invalidated statement always returns SQLITE_SCHEMA.
22: #
23: # CREATE/DROP TABLE...................................schema-1.*
24: # CREATE/DROP VIEW....................................schema-2.*
25: # CREATE/DROP TRIGGER.................................schema-3.*
26: # CREATE/DROP INDEX...................................schema-4.*
27: # DETACH..............................................schema-5.*
28: # Deleting a user-function............................schema-6.*
29: # Deleting a collation sequence.......................schema-7.*
30: # Setting or changing the authorization function......schema-8.*
31: # Rollback of a DDL statement.........................schema-12.*
32: #
33: # Test cases schema-9.* and schema-10.* test some specific bugs
34: # that came up during development.
35: #
36: # Test cases schema-11.* test that it is impossible to delete or
37: # change a collation sequence or user-function while SQL statements
38: # are executing. Adding new collations or functions is allowed.
39: #
40:
41: set testdir [file dirname $argv0]
42: source $testdir/tester.tcl
43:
44: do_test schema-1.1 {
45: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
46: execsql {
47: CREATE TABLE abc(a, b, c);
48: }
49: sqlite3_step $::STMT
50: } {SQLITE_ERROR}
51: do_test schema-1.2 {
52: sqlite3_finalize $::STMT
53: } {SQLITE_SCHEMA}
54: do_test schema-1.3 {
55: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
56: execsql {
57: DROP TABLE abc;
58: }
59: sqlite3_step $::STMT
60: } {SQLITE_ERROR}
61: do_test schema-1.4 {
62: sqlite3_finalize $::STMT
63: } {SQLITE_SCHEMA}
64:
65: ifcapable view {
66: do_test schema-2.1 {
67: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
68: execsql {
69: CREATE VIEW v1 AS SELECT * FROM sqlite_master;
70: }
71: sqlite3_step $::STMT
72: } {SQLITE_ERROR}
73: do_test schema-2.2 {
74: sqlite3_finalize $::STMT
75: } {SQLITE_SCHEMA}
76: do_test schema-2.3 {
77: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
78: execsql {
79: DROP VIEW v1;
80: }
81: sqlite3_step $::STMT
82: } {SQLITE_ERROR}
83: do_test schema-2.4 {
84: sqlite3_finalize $::STMT
85: } {SQLITE_SCHEMA}
86: }
87:
88: ifcapable trigger {
89: do_test schema-3.1 {
90: execsql {
91: CREATE TABLE abc(a, b, c);
92: }
93: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
94: execsql {
95: CREATE TRIGGER abc_trig AFTER INSERT ON abc BEGIN
96: SELECT 1, 2, 3;
97: END;
98: }
99: sqlite3_step $::STMT
100: } {SQLITE_ERROR}
101: do_test schema-3.2 {
102: sqlite3_finalize $::STMT
103: } {SQLITE_SCHEMA}
104: do_test schema-3.3 {
105: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
106: execsql {
107: DROP TRIGGER abc_trig;
108: }
109: sqlite3_step $::STMT
110: } {SQLITE_ERROR}
111: do_test schema-3.4 {
112: sqlite3_finalize $::STMT
113: } {SQLITE_SCHEMA}
114: }
115:
116: do_test schema-4.1 {
117: catchsql {
118: CREATE TABLE abc(a, b, c);
119: }
120: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
121: execsql {
122: CREATE INDEX abc_index ON abc(a);
123: }
124: sqlite3_step $::STMT
125: } {SQLITE_ERROR}
126: do_test schema-4.2 {
127: sqlite3_finalize $::STMT
128: } {SQLITE_SCHEMA}
129: do_test schema-4.3 {
130: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
131: execsql {
132: DROP INDEX abc_index;
133: }
134: sqlite3_step $::STMT
135: } {SQLITE_ERROR}
136: do_test schema-4.4 {
137: sqlite3_finalize $::STMT
138: } {SQLITE_SCHEMA}
139:
140: #---------------------------------------------------------------------
141: # Tests 5.1 to 5.4 check that prepared statements are invalidated when
142: # a database is DETACHed (but not when one is ATTACHed).
143: #
144: ifcapable attach {
145: do_test schema-5.1 {
146: set sql {SELECT * FROM abc;}
147: set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
148: execsql {
149: ATTACH 'test2.db' AS aux;
150: }
151: sqlite3_step $::STMT
152: } {SQLITE_DONE}
153: do_test schema-5.2 {
154: sqlite3_reset $::STMT
155: } {SQLITE_OK}
156: do_test schema-5.3 {
157: execsql {
158: DETACH aux;
159: }
160: sqlite3_step $::STMT
161: } {SQLITE_ERROR}
162: do_test schema-5.4 {
163: sqlite3_finalize $::STMT
164: } {SQLITE_SCHEMA}
165: }
166:
167: #---------------------------------------------------------------------
168: # Tests 6.* check that prepared statements are invalidated when
169: # a user-function is deleted (but not when one is added).
170: do_test schema-6.1 {
171: set sql {SELECT * FROM abc;}
172: set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
173: db function hello_function {}
174: sqlite3_step $::STMT
175: } {SQLITE_DONE}
176: do_test schema-6.2 {
177: sqlite3_reset $::STMT
178: } {SQLITE_OK}
179: do_test schema-6.3 {
180: sqlite_delete_function $::DB hello_function
181: sqlite3_step $::STMT
182: } {SQLITE_ERROR}
183: do_test schema-6.4 {
184: sqlite3_finalize $::STMT
185: } {SQLITE_SCHEMA}
186:
187: #---------------------------------------------------------------------
188: # Tests 7.* check that prepared statements are invalidated when
189: # a collation sequence is deleted (but not when one is added).
190: #
191: ifcapable utf16 {
192: do_test schema-7.1 {
193: set sql {SELECT * FROM abc;}
194: set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
195: add_test_collate $::DB 1 1 1
196: sqlite3_step $::STMT
197: } {SQLITE_DONE}
198: do_test schema-7.2 {
199: sqlite3_reset $::STMT
200: } {SQLITE_OK}
201: do_test schema-7.3 {
202: add_test_collate $::DB 0 0 0
203: sqlite3_step $::STMT
204: } {SQLITE_ERROR}
205: do_test schema-7.4 {
206: sqlite3_finalize $::STMT
207: } {SQLITE_SCHEMA}
208: }
209:
210: #---------------------------------------------------------------------
211: # Tests 8.1 and 8.2 check that prepared statements are invalidated when
212: # the authorization function is set.
213: #
214: ifcapable auth {
215: do_test schema-8.1 {
216: set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
217: db auth {}
218: sqlite3_step $::STMT
219: } {SQLITE_ERROR}
220: do_test schema-8.3 {
221: sqlite3_finalize $::STMT
222: } {SQLITE_SCHEMA}
223: }
224:
225: #---------------------------------------------------------------------
226: # schema-9.1: Test that if a table is dropped by one database connection,
227: # other database connections are aware of the schema change.
228: # schema-9.2: Test that if a view is dropped by one database connection,
229: # other database connections are aware of the schema change.
230: #
231: do_test schema-9.1 {
232: sqlite3 db2 test.db
233: execsql {
234: DROP TABLE abc;
235: } db2
236: db2 close
237: catchsql {
238: SELECT * FROM abc;
239: }
240: } {1 {no such table: abc}}
241: execsql {
242: CREATE TABLE abc(a, b, c);
243: }
244: ifcapable view {
245: do_test schema-9.2 {
246: execsql {
247: CREATE VIEW abcview AS SELECT * FROM abc;
248: }
249: sqlite3 db2 test.db
250: execsql {
251: DROP VIEW abcview;
252: } db2
253: db2 close
254: catchsql {
255: SELECT * FROM abcview;
256: }
257: } {1 {no such table: abcview}}
258: }
259:
260: #---------------------------------------------------------------------
261: # Test that if a CREATE TABLE statement fails because there are other
262: # btree cursors open on the same database file it does not corrupt
263: # the sqlite_master table.
264: #
265: # 2007-05-02: These tests have been overcome by events. Open btree
266: # cursors no longer block CREATE TABLE. But there is no reason not
267: # to keep the tests in the test suite.
268: #
269: do_test schema-10.1 {
270: execsql {
271: INSERT INTO abc VALUES(1, 2, 3);
272: }
273: set sql {SELECT * FROM abc}
274: set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
275: sqlite3_step $::STMT
276: } {SQLITE_ROW}
277: do_test schema-10.2 {
278: catchsql {
279: CREATE TABLE t2(a, b, c);
280: }
281: } {0 {}}
282: do_test schema-10.3 {
283: sqlite3_finalize $::STMT
284: } {SQLITE_OK}
285: do_test schema-10.4 {
286: sqlite3 db2 test.db
287: execsql {
288: SELECT * FROM abc
289: } db2
290: } {1 2 3}
291: do_test schema-10.5 {
292: db2 close
293: } {}
294:
295: #---------------------------------------------------------------------
296: # Attempting to delete or replace a user-function or collation sequence
297: # while there are active statements returns an SQLITE_BUSY error.
298: #
299: # schema-11.1 - 11.4: User function.
300: # schema-11.5 - 11.8: Collation sequence.
301: #
302: do_test schema-11.1 {
303: db function tstfunc {}
304: set sql {SELECT * FROM abc}
305: set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
306: sqlite3_step $::STMT
307: } {SQLITE_ROW}
308: do_test schema-11.2 {
309: sqlite_delete_function $::DB tstfunc
310: } {SQLITE_BUSY}
311: do_test schema-11.3 {
312: set rc [catch {
313: db function tstfunc {}
314: } msg]
315: list $rc $msg
316: } {1 {unable to delete/modify user-function due to active statements}}
317: do_test schema-11.4 {
318: sqlite3_finalize $::STMT
319: } {SQLITE_OK}
320: do_test schema-11.5 {
321: db collate tstcollate {}
322: set sql {SELECT * FROM abc}
323: set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
324: sqlite3_step $::STMT
325: } {SQLITE_ROW}
326: do_test schema-11.6 {
327: sqlite_delete_collation $::DB tstcollate
328: } {SQLITE_BUSY}
329: do_test schema-11.7 {
330: set rc [catch {
331: db collate tstcollate {}
332: } msg]
333: list $rc $msg
334: } {1 {unable to delete/modify collation sequence due to active statements}}
335: do_test schema-11.8 {
336: sqlite3_finalize $::STMT
337: } {SQLITE_OK}
338:
339: # The following demonstrates why statements need to be expired whenever
340: # there is a rollback (explicit or otherwise).
341: #
342: do_test schema-12.1 {
343: # Begin a transaction and create a table. This increments
344: # the schema cookie. Then compile an SQL statement, using
345: # the current (incremented) value of the cookie.
346: execsql {
347: BEGIN;
348: CREATE TABLE t3(a, b, c);
349: }
350: set ::STMT [sqlite3_prepare $::DB "CREATE TABLE t4(a,b,c)" -1 TAIL]
351:
352: # Rollback the transaction, resetting the schema cookie to the value
353: # it had at the start of this test case. Then create a table,
354: # incrementing the schema cookie.
355: execsql {
356: ROLLBACK;
357: CREATE TABLE t4(a, b, c);
358: }
359:
360: # The schema cookie now has the same value as it did when SQL statement
361: # $::STMT was prepared. So unless it has been expired, it would be
362: # possible to run the "CREATE TABLE t4" statement and create a
363: # duplicate table.
364: list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]
365: } {SQLITE_ERROR SQLITE_SCHEMA}
366:
367: ifcapable {auth} {
368:
369: do_test schema-13.1 {
370: set S [sqlite3_prepare_v2 db "SELECT * FROM sqlite_master" -1 dummy]
371: db function hello hello
372: db function hello {}
373: db auth auth
374: proc auth {args} {
375: if {[lindex $args 0] == "SQLITE_READ"} {return SQLITE_DENY}
376: return SQLITE_OK
377: }
378: sqlite3_step $S
379: } {SQLITE_AUTH}
380:
381: do_test schema-13.2 {
382: sqlite3_step $S
383: } {SQLITE_AUTH}
384:
385: do_test schema-13.3 {
386: sqlite3_finalize $S
387: } {SQLITE_AUTH}
388:
389: }
390:
391: finish_test
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