000001 # 2014 October 30
000002 #
000003 # The author disclaims copyright to this source code. In place of
000004 # a legal notice, here is a blessing:
000005 #
000006 # May you do good and not evil.
000007 # May you find forgiveness for yourself and forgive others.
000008 # May you share freely, never taking more than you give.
000009 #
000010 #***********************************************************************
000011 #
000012
000013 set testdir [file dirname $argv0]
000014 source $testdir/tester.tcl
000015 set testprefix e_blobopen
000016
000017 ifcapable !incrblob {
000018 finish_test
000019 return
000020 }
000021
000022 forcedelete test.db2
000023
000024 do_execsql_test 1.0 {
000025 ATTACH 'test.db2' AS aux;
000026
000027 CREATE TABLE main.t1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
000028 CREATE TEMP TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
000029 CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
000030
000031 CREATE TABLE main.x1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
000032 CREATE TEMP TABLE x2(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
000033 CREATE TABLE aux.x3(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
000034
000035 INSERT INTO main.t1 VALUES(1, 'main one', X'0101');
000036 INSERT INTO main.t1 VALUES(2, 'main two', X'0102');
000037 INSERT INTO main.t1 VALUES(3, 'main three', X'0103');
000038 INSERT INTO main.t1 VALUES(4, 'main four', X'0104');
000039 INSERT INTO main.t1 VALUES(5, 'main five', X'0105');
000040
000041 INSERT INTO main.x1 VALUES(1, 'x main one', X'000101');
000042 INSERT INTO main.x1 VALUES(2, 'x main two', X'000102');
000043 INSERT INTO main.x1 VALUES(3, 'x main three', X'000103');
000044 INSERT INTO main.x1 VALUES(4, 'x main four', X'000104');
000045 INSERT INTO main.x1 VALUES(5, 'x main five', X'000105');
000046
000047 INSERT INTO temp.t1 VALUES(1, 'temp one', X'0201');
000048 INSERT INTO temp.t1 VALUES(2, 'temp two', X'0202');
000049 INSERT INTO temp.t1 VALUES(3, 'temp three', X'0203');
000050 INSERT INTO temp.t1 VALUES(4, 'temp four', X'0204');
000051 INSERT INTO temp.t1 VALUES(5, 'temp five', X'0205');
000052
000053 INSERT INTO temp.x2 VALUES(1, 'x temp one', X'000201');
000054 INSERT INTO temp.x2 VALUES(2, 'x temp two', X'000202');
000055 INSERT INTO temp.x2 VALUES(3, 'x temp three', X'000203');
000056 INSERT INTO temp.x2 VALUES(4, 'x temp four', X'000204');
000057 INSERT INTO temp.x2 VALUES(5, 'x temp five', X'000205');
000058
000059 INSERT INTO aux.t1 VALUES(1, 'aux one', X'0301');
000060 INSERT INTO aux.t1 VALUES(2, 'aux two', X'0302');
000061 INSERT INTO aux.t1 VALUES(3, 'aux three', X'0303');
000062 INSERT INTO aux.t1 VALUES(4, 'aux four', X'0304');
000063 INSERT INTO aux.t1 VALUES(5, 'aux five', X'0305');
000064
000065 INSERT INTO aux.x3 VALUES(1, 'x aux one', X'000301');
000066 INSERT INTO aux.x3 VALUES(2, 'x aux two', X'000302');
000067 INSERT INTO aux.x3 VALUES(3, 'x aux three', X'000303');
000068 INSERT INTO aux.x3 VALUES(4, 'x aux four', X'000304');
000069 INSERT INTO aux.x3 VALUES(5, 'x aux five', X'000305');
000070 }
000071
000072 #-------------------------------------------------------------------------
000073 # EVIDENCE-OF: R-37639-55938 This interfaces opens a handle to the BLOB
000074 # located in row iRow, column zColumn, table zTable in database zDb; in
000075 # other words, the same BLOB that would be selected by: SELECT zColumn
000076 # FROM zDb.zTable WHERE rowid = iRow;
000077 #
000078 proc read_blob {zDb zTab zCol iRow} {
000079 sqlite3_blob_open db $zDb $zTab $zCol $iRow 0 B
000080 set nByte [sqlite3_blob_bytes $B]
000081 set data [sqlite3_blob_read $B 0 $nByte]
000082 sqlite3_blob_close $B
000083 return $data
000084 }
000085
000086 do_test 1.1.1 { read_blob main t1 b 1 } "main one"
000087 do_test 1.1.2 { read_blob main t1 c 1 } "\01\01"
000088 do_test 1.1.3 { read_blob temp t1 b 1 } "temp one"
000089 do_test 1.1.4 { read_blob temp t1 c 1 } "\02\01"
000090 do_test 1.1.6 { read_blob aux t1 b 1 } "aux one"
000091 do_test 1.1.7 { read_blob aux t1 c 1 } "\03\01"
000092
000093 do_test 1.2.1 { read_blob main t1 b 4 } "main four"
000094 do_test 1.2.2 { read_blob main t1 c 4 } "\01\04"
000095 do_test 1.2.3 { read_blob temp t1 b 4 } "temp four"
000096 do_test 1.2.4 { read_blob temp t1 c 4 } "\02\04"
000097 do_test 1.2.6 { read_blob aux t1 b 4 } "aux four"
000098 do_test 1.2.7 { read_blob aux t1 c 4 } "\03\04"
000099
000100 do_test 1.3.1 { read_blob main x1 b 2 } "x main two"
000101 do_test 1.3.2 { read_blob main x1 c 2 } "\00\01\02"
000102 do_test 1.3.3 { read_blob temp x2 b 2 } "x temp two"
000103 do_test 1.3.4 { read_blob temp x2 c 2 } "\00\02\02"
000104 do_test 1.3.6 { read_blob aux x3 b 2 } "x aux two"
000105 do_test 1.3.7 { read_blob aux x3 c 2 } "\00\03\02"
000106
000107 #-------------------------------------------------------------------------
000108 # EVIDENCE-OF: R-27234-05761 Parameter zDb is not the filename that
000109 # contains the database, but rather the symbolic name of the database.
000110 # For attached databases, this is the name that appears after the AS
000111 # keyword in the ATTACH statement. For the main database file, the
000112 # database name is "main". For TEMP tables, the database name is "temp".
000113 #
000114 # The test cases immediately above demonstrate that the database name
000115 # for the main db, for TEMP tables and for those in attached databases
000116 # is correct. The following tests check that filenames cannot be
000117 # used as well.
000118 #
000119 do_test 2.1 {
000120 list [catch { sqlite3_blob_open db "test.db" t1 b 1 0 B } msg] $msg
000121 } {1 SQLITE_ERROR}
000122 do_test 2.2 {
000123 list [catch { sqlite3_blob_open db "test.db2" t1 b 1 0 B } msg] $msg
000124 } {1 SQLITE_ERROR}
000125
000126 #-------------------------------------------------------------------------
000127 # EVIDENCE-OF: R-50854-53979 If the flags parameter is non-zero, then
000128 # the BLOB is opened for read and write access.
000129 #
000130 # EVIDENCE-OF: R-03922-41160 If the flags parameter is zero, the BLOB is
000131 # opened for read-only access.
000132 #
000133 foreach {tn iRow flags} {
000134 1 1 0
000135 2 2 1
000136 3 3 -1
000137 4 4 2147483647
000138 5 5 -2147483648
000139 } {
000140 do_test 3.$tn.1 {
000141 sqlite3_blob_open db main x1 c $iRow $flags B
000142 set n [sqlite3_blob_bytes $B]
000143 sqlite3_blob_read $B 0 $n
000144 } [binary format ccc 0 1 $iRow]
000145
000146 if {$flags==0} {
000147 # Blob was opened for read-only access - writing returns an error.
000148 do_test 3.$tn.2 {
000149 list [catch { sqlite3_blob_write $B 0 xxx 3 } msg] $msg
000150 } {1 SQLITE_READONLY}
000151
000152 do_execsql_test 3.$tn.3 {
000153 SELECT c FROM x1 WHERE a=$iRow;
000154 } [binary format ccc 0 1 $iRow]
000155 } else {
000156 # Blob was opened for read/write access - writing succeeds
000157 do_test 3.$tn.4 {
000158 list [catch { sqlite3_blob_write $B 0 xxx 3 } msg] $msg
000159 } {0 {}}
000160
000161 do_execsql_test 3.$tn.5 {
000162 SELECT c FROM x1 WHERE a=$iRow;
000163 } {xxx}
000164 }
000165
000166 sqlite3_blob_close $B
000167 }
000168
000169 #-------------------------------------------------------------------------
000170 #
000171 reset_db
000172 do_execsql_test 4.0 {
000173 CREATE TABLE t1(x, y);
000174 INSERT INTO t1 VALUES('abcd', 152);
000175 INSERT INTO t1 VALUES(NULL, X'00010203');
000176 INSERT INTO t1 VALUES('', 154.2);
000177
000178 CREATE TABLE t2(x PRIMARY KEY, y) WITHOUT ROWID;
000179 INSERT INTO t2 VALUES(1, 'blob');
000180
000181 CREATE TABLE t3(a PRIMARY KEY, b, c, d, e, f, UNIQUE(e, f));
000182 INSERT INTO t3 VALUES('aaaa', 'bbbb', 'cccc', 'dddd', 'eeee', 'ffff');
000183 CREATE INDEX t3b ON t3(b);
000184
000185 CREATE TABLE p1(x PRIMARY KEY);
000186 INSERT INTO p1 VALUES('abc');
000187
000188 CREATE TABLE c1(a INTEGER PRIMARY KEY, b REFERENCES p1);
000189 INSERT INTO c1 VALUES(45, 'abc');
000190 }
000191
000192 proc test_blob_open {tn zDb zTab zCol iRow flags errcode errmsg} {
000193 global B
000194 set B "0x1234"
000195
000196 if {$errcode=="SQLITE_OK"} {
000197 set expected "0 {}"
000198 } else {
000199 set expected "1 $errcode"
000200 }
000201
000202 set ::res [list [
000203 catch { sqlite3_blob_open db $zDb $zTab $zCol $iRow $flags B } msg
000204 ] $msg]
000205 do_test 4.$tn.1 { set ::res } $expected
000206
000207 # EVIDENCE-OF: R-08940-21305 Unless it returns SQLITE_MISUSE, this
000208 # function sets the database connection error code and message
000209 # accessible via sqlite3_errcode() and sqlite3_errmsg() and related
000210 # functions.
000211 #
000212 # This proc (test_blob_open) is used below to test various error and
000213 # non-error conditions. But never SQLITE_MISUSE conditions. So these
000214 # test cases are considered as partly verifying the requirement above.
000215 # See below for a test of the SQLITE_MISUSE case.
000216 #
000217 do_test 4.$tn.2 {
000218 sqlite3_errcode db
000219 } $errcode
000220 do_test 4.$tn.3 {
000221 sqlite3_errmsg db
000222 } $errmsg
000223
000224 # EVIDENCE-OF: R-31086-35521 On success, SQLITE_OK is returned and the
000225 # new BLOB handle is stored in *ppBlob. Otherwise an error code is
000226 # returned and, unless the error code is SQLITE_MISUSE, *ppBlob is set
000227 # to NULL.
000228 #
000229 do_test 4.$tn.4 {
000230 expr {$B == "0"}
000231 } [expr {$errcode != "SQLITE_OK"}]
000232
000233 # EVIDENCE-OF: R-63421-15521 This means that, provided the API is not
000234 # misused, it is always safe to call sqlite3_blob_close() on *ppBlob
000235 # after this function it returns.
000236 do_test 4.$tn.5 {
000237 sqlite3_blob_close $B
000238 } {}
000239 }
000240
000241 # EVIDENCE-OF: R-31204-44780 Database zDb does not exist
000242 test_blob_open 1 nosuchdb t1 x 1 0 SQLITE_ERROR "no such table: nosuchdb.t1"
000243
000244 # EVIDENCE-OF: R-28676-08005 Table zTable does not exist within database zDb
000245 test_blob_open 2 main tt1 x 1 0 SQLITE_ERROR "no such table: main.tt1"
000246
000247 # EVIDENCE-OF: R-40134-30296 Table zTable is a WITHOUT ROWID table
000248 test_blob_open 3 main t2 y 1 0 SQLITE_ERROR \
000249 "cannot open table without rowid: t2"
000250
000251 # EVIDENCE-OF: R-56376-21261 Column zColumn does not exist
000252 test_blob_open 4 main t1 z 2 0 SQLITE_ERROR "no such column: \"z\""
000253
000254 # EVIDENCE-OF: R-28258-23166 Row iRow is not present in the table
000255 test_blob_open 5 main t1 y 6 0 SQLITE_ERROR "no such rowid: 6"
000256
000257 # EVIDENCE-OF: R-11683-62380 The specified column of row iRow contains a
000258 # value that is not a TEXT or BLOB value
000259 test_blob_open 6 main t1 x 2 0 SQLITE_ERROR "cannot open value of type null"
000260 test_blob_open 7 main t1 y 1 0 SQLITE_ERROR "cannot open value of type integer"
000261 test_blob_open 8 main t1 y 3 0 SQLITE_ERROR "cannot open value of type real"
000262
000263 # EVIDENCE-OF: R-34146-30782 Column zColumn is part of an index, PRIMARY
000264 # KEY or UNIQUE constraint and the blob is being opened for read/write
000265 # access
000266 #
000267 # Test cases 8.1.* show that such columns can be opened for read-access.
000268 # Tests 8.2.* show that read-write access is different. Columns "c" and "c"
000269 # are not part of an index, PK or UNIQUE constraint, so they work in both
000270 # cases.
000271 #
000272 test_blob_open 8.1.1 main t3 a 1 0 SQLITE_OK "not an error"
000273 test_blob_open 8.1.2 main t3 b 1 0 SQLITE_OK "not an error"
000274 test_blob_open 8.1.3 main t3 c 1 0 SQLITE_OK "not an error"
000275 test_blob_open 8.1.4 main t3 d 1 0 SQLITE_OK "not an error"
000276 test_blob_open 8.1.5 main t3 e 1 0 SQLITE_OK "not an error"
000277 test_blob_open 8.1.6 main t3 f 1 0 SQLITE_OK "not an error"
000278
000279 set cannot "cannot open indexed column for writing"
000280 test_blob_open 8.2.1 main t3 a 1 8 SQLITE_ERROR $cannot
000281 test_blob_open 8.2.2 main t3 b 1 8 SQLITE_ERROR $cannot
000282 test_blob_open 8.2.3 main t3 c 1 8 SQLITE_OK "not an error"
000283 test_blob_open 8.2.4 main t3 d 1 8 SQLITE_OK "not an error"
000284 test_blob_open 8.2.5 main t3 e 1 8 SQLITE_ERROR $cannot
000285 test_blob_open 8.2.6 main t3 f 1 8 SQLITE_ERROR $cannot
000286
000287 # EVIDENCE-OF: R-50117-55204 Foreign key constraints are enabled, column
000288 # zColumn is part of a child key definition and the blob is being opened
000289 # for read/write access
000290 #
000291 # 9.1: FK disabled, read-only access.
000292 # 9.2: FK disabled, read-only access.
000293 # 9.3: FK enabled, read/write access.
000294 # 9.4: FK enabled, read/write access.
000295 #
000296 test_blob_open 9.1 main c1 b 45 0 SQLITE_OK "not an error"
000297 test_blob_open 9.2 main c1 b 45 1 SQLITE_OK "not an error"
000298 execsql { PRAGMA foreign_keys = ON }
000299 test_blob_open 9.3 main c1 b 45 0 SQLITE_OK "not an error"
000300 test_blob_open 9.4 main c1 b 45 1 SQLITE_ERROR \
000301 "cannot open foreign key column for writing"
000302
000303 #-------------------------------------------------------------------------
000304 # EVIDENCE-OF: R-08940-21305 Unless it returns SQLITE_MISUSE, this
000305 # function sets the database connection error code and message
000306 # accessible via sqlite3_errcode() and sqlite3_errmsg() and related
000307 # functions.
000308 #
000309 # This requirement is partially verified by the many uses of test
000310 # command [test_blob_open] above. All that is left is to verify the
000311 # SQLITE_MISUSE case.
000312 #
000313 # SQLITE_MISUSE is only returned if SQLITE_ENABLE_API_ARMOR is defined
000314 # during compilation.
000315 #
000316 ifcapable api_armor {
000317 sqlite3_blob_open db main t1 x 1 0 B
000318
000319 do_test 10.1.1 {
000320 list [catch {sqlite3_blob_open $B main t1 x 1 0 B2} msg] $msg
000321 } {1 SQLITE_MISUSE}
000322 do_test 10.1.2 {
000323 list [sqlite3_errcode db] [sqlite3_errmsg db]
000324 } {SQLITE_OK {not an error}}
000325 sqlite3_blob_close $B
000326
000327 do_test 10.2.1 {
000328 list [catch {sqlite3_blob_open db main {} x 1 0 B} msg] $msg
000329 } {1 SQLITE_MISUSE}
000330 do_test 10.2.2 {
000331 list [sqlite3_errcode db] [sqlite3_errmsg db]
000332 } {SQLITE_OK {not an error}}
000333 }
000334
000335 #-------------------------------------------------------------------------
000336 # EVIDENCE-OF: R-50542-62589 If the row that a BLOB handle points to is
000337 # modified by an UPDATE, DELETE, or by ON CONFLICT side-effects then the
000338 # BLOB handle is marked as "expired". This is true if any column of the
000339 # row is changed, even a column other than the one the BLOB handle is
000340 # open on.
000341 #
000342 # EVIDENCE-OF: R-48367-20048 Calls to sqlite3_blob_read() and
000343 # sqlite3_blob_write() for an expired BLOB handle fail with a return
000344 # code of SQLITE_ABORT.
000345 #
000346 # 11.2: read-only handle, DELETE.
000347 # 11.3: read-only handle, UPDATE.
000348 # 11.4: read-only handle, REPLACE.
000349 # 11.5: read/write handle, DELETE.
000350 # 11.6: read/write handle, UPDATE.
000351 # 11.7: read/write handle, REPLACE.
000352 #
000353 do_execsql_test 11.1 {
000354 CREATE TABLE b1(a INTEGER PRIMARY KEY, b, c UNIQUE);
000355 INSERT INTO b1 VALUES(1, '1234567890', 1);
000356 INSERT INTO b1 VALUES(2, '1234567890', 2);
000357 INSERT INTO b1 VALUES(3, '1234567890', 3);
000358 INSERT INTO b1 VALUES(4, '1234567890', 4);
000359 INSERT INTO b1 VALUES(5, '1234567890', 5);
000360 INSERT INTO b1 VALUES(6, '1234567890', 6);
000361
000362 CREATE TABLE b2(a INTEGER PRIMARY KEY, b, c UNIQUE);
000363 INSERT INTO b2 VALUES(1, '1234567890', 1);
000364 INSERT INTO b2 VALUES(2, '1234567890', 2);
000365 INSERT INTO b2 VALUES(3, '1234567890', 3);
000366 INSERT INTO b2 VALUES(4, '1234567890', 4);
000367 INSERT INTO b2 VALUES(5, '1234567890', 5);
000368 INSERT INTO b2 VALUES(6, '1234567890', 6);
000369 }
000370
000371 do_test 11.2.1 {
000372 sqlite3_blob_open db main b1 b 2 0 B
000373 sqlite3_blob_read $B 0 10
000374 } {1234567890}
000375 do_test 11.2.2 {
000376 # Deleting a different row does not invalidate the blob handle.
000377 execsql { DELETE FROM b1 WHERE a = 1 }
000378 sqlite3_blob_read $B 0 10
000379 } {1234567890}
000380 do_test 11.2.3 {
000381 execsql { DELETE FROM b1 WHERE a = 2 }
000382 list [catch { sqlite3_blob_read $B 0 10 } msg] $msg
000383 } {1 SQLITE_ABORT}
000384 do_test 11.2.4 {
000385 sqlite3_blob_close $B
000386 } {}
000387
000388 do_test 11.3.1 {
000389 sqlite3_blob_open db main b1 b 3 0 B
000390 sqlite3_blob_read $B 0 10
000391 } {1234567890}
000392 do_test 11.3.2 {
000393 # Updating a different row
000394 execsql { UPDATE b1 SET c = 42 WHERE a=4 }
000395 sqlite3_blob_read $B 0 10
000396 } {1234567890}
000397 do_test 11.3.3 {
000398 execsql { UPDATE b1 SET c = 43 WHERE a=3 }
000399 list [catch { sqlite3_blob_read $B 0 10 } msg] $msg
000400 } {1 SQLITE_ABORT}
000401 do_test 11.3.4 {
000402 sqlite3_blob_close $B
000403 } {}
000404
000405 do_test 11.4.1 {
000406 sqlite3_blob_open db main b1 b 6 0 B
000407 sqlite3_blob_read $B 0 10
000408 } {1234567890}
000409 do_test 11.4.2 {
000410 # Replace a different row
000411 execsql { INSERT OR REPLACE INTO b1 VALUES(10, 'abcdefghij', 5) }
000412 sqlite3_blob_read $B 0 10
000413 } {1234567890}
000414 do_test 11.4.3 {
000415 execsql { INSERT OR REPLACE INTO b1 VALUES(11, 'abcdefghij', 6) }
000416 list [catch { sqlite3_blob_read $B 0 10 } msg] $msg
000417 } {1 SQLITE_ABORT}
000418 do_test 11.4.4 {
000419 sqlite3_blob_close $B
000420 } {}
000421
000422 do_test 11.4.1 {
000423 sqlite3_blob_open db main b2 b 2 1 B
000424 sqlite3_blob_write $B 0 "abcdefghij"
000425 } {}
000426 do_test 11.4.2 {
000427 # Deleting a different row does not invalidate the blob handle.
000428 execsql { DELETE FROM b2 WHERE a = 1 }
000429 sqlite3_blob_write $B 0 "ABCDEFGHIJ"
000430 } {}
000431 do_test 11.4.3 {
000432 execsql { DELETE FROM b2 WHERE a = 2 }
000433 list [catch { sqlite3_blob_write $B 0 "0987654321" } msg] $msg
000434 } {1 SQLITE_ABORT}
000435 do_test 11.4.4 {
000436 sqlite3_blob_close $B
000437 } {}
000438
000439 do_test 11.5.1 {
000440 sqlite3_blob_open db main b2 b 3 1 B
000441 sqlite3_blob_write $B 0 "abcdefghij"
000442 } {}
000443 do_test 11.5.2 {
000444 # Updating a different row
000445 execsql { UPDATE b2 SET c = 42 WHERE a=4 }
000446 sqlite3_blob_write $B 0 "ABCDEFGHIJ"
000447 } {}
000448 do_test 11.5.3 {
000449 execsql { UPDATE b2 SET c = 43 WHERE a=3 }
000450 list [catch { sqlite3_blob_write $B 0 "0987654321" } msg] $msg
000451 } {1 SQLITE_ABORT}
000452 do_test 11.5.4 {
000453 sqlite3_blob_close $B
000454 } {}
000455
000456 do_test 11.6.1 {
000457 sqlite3_blob_open db main b2 b 6 1 B
000458 sqlite3_blob_write $B 0 "abcdefghij"
000459 } {}
000460 do_test 11.6.2 {
000461 # Replace a different row
000462 execsql { INSERT OR REPLACE INTO b2 VALUES(10, 'abcdefghij', 5) }
000463 sqlite3_blob_write $B 0 "ABCDEFGHIJ"
000464 } {}
000465 do_test 11.6.3 {
000466 execsql { INSERT OR REPLACE INTO b2 VALUES(11, 'abcdefghij', 6) }
000467 list [catch { sqlite3_blob_write $B 0 "0987654321" } msg] $msg
000468 } {1 SQLITE_ABORT}
000469 do_test 11.6.4 {
000470 sqlite3_blob_close $B
000471 } {}
000472
000473 #-------------------------------------------------------------------------
000474 # EVIDENCE-OF: R-45408-40694 Changes written into a BLOB prior to the
000475 # BLOB expiring are not rolled back by the expiration of the BLOB. Such
000476 # changes will eventually commit if the transaction continues to
000477 # completion.
000478 #
000479 do_execsql_test 12.1 {
000480 CREATE TABLE b3(x INTEGER PRIMARY KEY, y TEXT, z INTEGER);
000481 INSERT INTO b3 VALUES(22, '..........', NULL);
000482 }
000483 do_test 12.2 {
000484 sqlite3_blob_open db main b3 y 22 1 B
000485 sqlite3_blob_write $B 0 "xxxxx" 5
000486 } {}
000487 do_execsql_test 12.3 {
000488 UPDATE b3 SET z = 'not null';
000489 }
000490 do_test 12.4 {
000491 list [catch {sqlite3_blob_write $B 5 "xxxxx" 5} msg] $msg
000492 } {1 SQLITE_ABORT}
000493 do_execsql_test 12.5 {
000494 SELECT * FROM b3;
000495 } {22 xxxxx..... {not null}}
000496 do_test 12.5 {
000497 sqlite3_blob_close $B
000498 } {}
000499 do_execsql_test 12.6 {
000500 SELECT * FROM b3;
000501 } {22 xxxxx..... {not null}}
000502
000503 #-------------------------------------------------------------------------
000504 # EVIDENCE-OF: R-58813-55036 The sqlite3_bind_zeroblob() and
000505 # sqlite3_result_zeroblob() interfaces and the built-in zeroblob SQL
000506 # function may be used to create a zero-filled blob to read or write
000507 # using the incremental-blob interface.
000508 #
000509 do_execsql_test 13.1 {
000510 CREATE TABLE c2(i INTEGER PRIMARY KEY, j);
000511 INSERT INTO c2 VALUES(10, zeroblob(24));
000512 }
000513
000514 do_test 13.2 {
000515 set stmt [sqlite3_prepare_v2 db "INSERT INTO c2 VALUES(11, ?)" -1]
000516 sqlite3_bind_zeroblob $stmt 1 45
000517 sqlite3_step $stmt
000518 sqlite3_finalize $stmt
000519 } {SQLITE_OK}
000520
000521 # The blobs can be read:
000522 #
000523 do_test 13.3.1 {
000524 sqlite3_blob_open db main c2 j 10 1 B
000525 sqlite3_blob_open db main c2 j 11 1 B2
000526 list [sqlite3_blob_bytes $B] [sqlite3_blob_bytes $B2]
000527 } {24 45}
000528 do_test 13.3.2 {
000529 sqlite3_blob_read $B 0 24
000530 } [string repeat [binary format c 0] 24]
000531 do_test 13.3.3 {
000532 sqlite3_blob_read $B2 0 45
000533 } [string repeat [binary format c 0] 45]
000534
000535 # And also written:
000536 #
000537 do_test 13.4.1 {
000538 sqlite3_blob_write $B 0 [string repeat [binary format c 1] 24]
000539 } {}
000540 do_test 13.4.2 {
000541 sqlite3_blob_write $B2 0 [string repeat [binary format c 1] 45]
000542 } {}
000543 do_test 13.5 {
000544 sqlite3_blob_close $B
000545 sqlite3_blob_close $B2
000546 execsql { SELECT j FROM c2 }
000547 } [list \
000548 [string repeat [binary format c 1] 24] \
000549 [string repeat [binary format c 1] 45] \
000550 ]
000551
000552
000553 finish_test