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 1.9 2009/02/04 17:40:58 drh 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 392
