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      1 # 2010 October 20
      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 #
     12 #
     13 
     14 set testdir [file dirname $argv0]
     15 source $testdir/tester.tcl
     16 
     17 sqlite3 db test.db
     18 sqlite3_db_config_lookaside db 0 0 0
     19 
     20 do_execsql_test incrblob3-1.1 {
     21   CREATE TABLE blobs(k INTEGER PRIMARY KEY, v BLOB);
     22   INSERT INTO blobs VALUES(1, zeroblob(100));
     23   INSERT INTO blobs VALUES(2, zeroblob(100));
     24 } {}
     25 
     26 # Test the sqlite3_blob_reopen()/read()/write() functions.
     27 #
     28 do_test incrblob3-1.2 {
     29   set ::blob [db incrblob blobs v 1]
     30   puts $::blob "hello world"
     31 } {}
     32 
     33 do_test incrblob3-1.3 {
     34   sqlite3_blob_reopen $::blob 2
     35   puts $::blob "world hello"
     36 } {}
     37 
     38 do_test incrblob3-1.4 {
     39   sqlite3_blob_reopen $::blob 1
     40   gets $::blob
     41 } {hello world}
     42 
     43 do_test incrblob3-1.5 {
     44   sqlite3_blob_reopen $::blob 2
     45   gets $::blob
     46 } {world hello}
     47 
     48 do_test incrblob3-1.6 { close $::blob } {}
     49 
     50 # Test some error conditions.
     51 #
     52 #   incrblob3-2.1: Attempting to reopen a row that does not exist.
     53 #   incrblob3-2.2: Attempting to reopen a row that does not contain a blob
     54 #                  or text value.
     55 #
     56 do_test incrblob3-2.1.1 {
     57   set ::blob [db incrblob blobs v 1]
     58   list [catch {sqlite3_blob_reopen $::blob 3} msg] $msg
     59 } {1 SQLITE_ERROR}
     60 do_test incrblob3-2.1.2 {
     61   list [sqlite3_errcode db] [sqlite3_errmsg db]
     62 } {SQLITE_ERROR {no such rowid: 3}}
     63 do_test incrblob3-2.1.3 {
     64   list [catch {sqlite3_blob_reopen $::blob 1} msg] $msg
     65 } {1 SQLITE_ABORT}
     66 do_test incrblob3-2.1.4 { close $::blob } {}
     67 
     68 do_execsql_test incrblob3-2.2.1 {
     69   INSERT INTO blobs VALUES(3, 42);
     70   INSERT INTO blobs VALUES(4, 54.4);
     71   INSERT INTO blobs VALUES(5, NULL);
     72 }
     73 foreach {tn rowid type} {
     74   1 3 integer
     75   2 4 real
     76   3 5 null
     77 } {
     78   do_test incrblob3-2.2.$tn.1 {
     79     set ::blob [db incrblob blobs v 1]
     80     list [catch {sqlite3_blob_reopen $::blob $rowid} msg] $msg
     81   } {1 SQLITE_ERROR}
     82   do_test incrblob3-2.2.$tn.2 {
     83     list [sqlite3_errcode db] [sqlite3_errmsg db]
     84   } "SQLITE_ERROR {cannot open value of type $type}"
     85 
     86   do_test incrblob3-2.2.$tn.3 {
     87     list [catch {sqlite3_blob_reopen $::blob 1} msg] $msg
     88   } {1 SQLITE_ABORT}
     89   do_test incrblob3-2.2.$tn.4 {
     90     list [catch {sqlite3_blob_read $::blob 0 10} msg] $msg
     91   } {1 SQLITE_ABORT}
     92   do_test incrblob3-2.2.$tn.5 {
     93     list [catch {sqlite3_blob_write $::blob 0 "abcd"} msg] $msg
     94   } {1 SQLITE_ABORT}
     95   do_test incrblob3-2.2.$tn.6 {
     96     sqlite3_blob_bytes $::blob
     97   } {0}
     98 
     99   do_test incrblob3-2.2.$tn.7 { close $::blob } {}
    100 }
    101 
    102 # Test that passing NULL to sqlite3_blob_XXX() APIs returns SQLITE_MISUSE.
    103 #
    104 #   incrblob3-3.1: sqlite3_blob_reopen()
    105 #   incrblob3-3.2: sqlite3_blob_read()
    106 #   incrblob3-3.3: sqlite3_blob_write()
    107 #   incrblob3-3.4: sqlite3_blob_bytes()
    108 #
    109 do_test incrblob3-3.1 {
    110   list [catch {sqlite3_blob_reopen {} 3} msg] $msg
    111 } {1 SQLITE_MISUSE}
    112 
    113 do_test incrblob3-3.2 {
    114   list [catch {sqlite3_blob_read {} 0 10} msg] $msg
    115 } {1 SQLITE_MISUSE}
    116 
    117 do_test incrblob3-3.3 {
    118   list [catch {sqlite3_blob_write {} 0 "abcd"} msg] $msg
    119 } {1 SQLITE_MISUSE}
    120 
    121 do_test incrblob3-3.4 { sqlite3_blob_bytes {} } {0}
    122 
    123 do_test incrblob3-3.5 { sqlite3_blob_close {} } {}
    124 
    125 # Test out-of-range reading and writing
    126 #
    127 do_test incrblob3-4.1 {
    128   set ::blob [db incrblob blobs v 1]
    129   sqlite3_blob_bytes $::blob
    130 } {100}
    131 do_test incrblob3-4.2 {
    132   list [catch { sqlite3_blob_read $::blob -1 10 } msg] $msg
    133 } {1 SQLITE_ERROR}
    134 do_test incrblob3-4.3 {
    135   list [catch { sqlite3_blob_read $::blob 0 -10 } msg] $msg
    136 } {1 SQLITE_ERROR}
    137 do_test incrblob3-4.4 {
    138   list [catch { sqlite3_blob_read $::blob 95 10 } msg] $msg
    139 } {1 SQLITE_ERROR}
    140 do_test incrblob3-4.5 {
    141   list [catch { sqlite3_blob_write $::blob -1 "abcdefghij" 10 } msg] $msg
    142 } {1 SQLITE_ERROR}
    143 do_test incrblob3-4.6 {
    144   list [catch { sqlite3_blob_write $::blob 0 "abcdefghij" -10 } msg] $msg
    145 } {1 SQLITE_ERROR}
    146 do_test incrblob3-4.7 {
    147   list [catch { sqlite3_blob_write $::blob 95 "abcdefghij" } msg] $msg
    148 } {1 SQLITE_ERROR}
    149 
    150 do_test incrblob3-4.8 { close $::blob } {}
    151 
    152 # Test that modifying the row a blob handle points to aborts the blob.
    153 #
    154 do_test incrblob3-5.1 {
    155   set ::blob [db incrblob blobs v 1]
    156   sqlite3_blob_bytes $::blob
    157 } {100}
    158 do_test incrblob3-5.2 {
    159   execsql { UPDATE blobs SET v = '123456789012345678901234567890' WHERE k = 1 }
    160   list [catch { sqlite3_blob_read $::blob 0 10 } msg] $msg
    161 } {1 SQLITE_ABORT}
    162 
    163 # Test various errors that can occur in sqlite3_blob_open():
    164 #
    165 #   1. Trying to open a virtual table column.
    166 #   2. Trying to open a view column.
    167 #   3. Trying to open a column that does not exist.
    168 #   4. Trying to open a read/write handle on an indexed column.
    169 #   5. Trying to open a read/write handle on the child key of an FK constraint.
    170 #
    171 ifcapable fts3 {
    172   do_test incrblob3-6.1 {
    173     execsql {
    174       CREATE VIRTUAL TABLE ft USING fts3;
    175       INSERT INTO ft VALUES('rules to open a column to which');
    176     }
    177 
    178     list [catch { db incrblob ft content 1 } msg] $msg
    179   } {1 {cannot open virtual table: ft}}
    180 }
    181 ifcapable view {
    182   do_test incrblob3-6.2 {
    183     execsql { CREATE VIEW v1 AS SELECT * FROM blobs }
    184     list [catch { db incrblob v1 content 1 } msg] $msg
    185   } {1 {cannot open view: v1}}
    186 }
    187 
    188 do_test incrblob3-6.3 {
    189   list [catch { db incrblob blobs content 1 } msg] $msg
    190 } {1 {no such column: "content"}}
    191 
    192 do_test incrblob3-6.4.1 {
    193   execsql { 
    194     CREATE TABLE t1(a, b);
    195     CREATE INDEX i1 ON t1(b);
    196     INSERT INTO t1 VALUES(zeroblob(100), zeroblob(100));
    197   }
    198   list [catch { db incrblob t1 b 1 } msg] $msg
    199 } {1 {cannot open indexed column for writing}}
    200 do_test incrblob3-6.4.2 {
    201   set ::blob [db incrblob t1 a 1]
    202   close $::blob
    203 } {}
    204 do_test incrblob3-6.4.3 {
    205   set ::blob [db incrblob -readonly t1 b 1]
    206   close $::blob
    207 } {}
    208 
    209 do_test incrblob3-6.5.1 {
    210   execsql { 
    211     CREATE TABLE p1(a PRIMARY KEY);
    212     CREATE TABLE c1(a, b REFERENCES p1);
    213     PRAGMA foreign_keys = 1;
    214     INSERT INTO p1 VALUES(zeroblob(100));
    215     INSERT INTO c1 VALUES(zeroblob(100), zeroblob(100));
    216   }
    217   list [catch { db incrblob c1 b 1 } msg] $msg
    218 } {1 {cannot open foreign key column for writing}}
    219 
    220 do_test incrblob3-6.5.2 {
    221   set ::blob [db incrblob c1 a 1]
    222   close $::blob
    223 } {}
    224 do_test incrblob3-6.5.3 {
    225   set ::blob [db incrblob -readonly c1 b 1]
    226   close $::blob
    227 } {}
    228 do_test incrblob3-6.5.4 {
    229   execsql { PRAGMA foreign_keys = 0 }
    230   set ::blob [db incrblob c1 b 1]
    231   close $::blob
    232 } {}
    233 
    234 
    235 # Test that sqlite3_blob_open() handles transient and persistent schema 
    236 # errors correctly.
    237 #
    238 do_test incrblob3-7.1 {
    239   sqlite3 db2 test.db
    240   sqlite3_db_config_lookaside db2 0 0 0
    241   execsql { CREATE TABLE t2(x) } db2
    242   set ::blob [db incrblob blobs v 1]
    243   close $::blob
    244 } {}
    245 db2 close
    246 
    247 testvfs tvfs -default 1
    248 tvfs filter xAccess
    249 tvfs script access_method
    250 
    251 proc access_method {args} {
    252   set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
    253   incr schemacookie
    254   hexio_write test.db 40 [hexio_render_int32 $schemacookie]
    255 
    256   set dbversion [hexio_get_int [hexio_read test.db 24 4]]
    257   incr dbversion
    258   hexio_write test.db 24 [hexio_render_int32 $dbversion]
    259 
    260   return ""
    261 }
    262 
    263 do_test incrblob3-7.2 {
    264   sqlite3 db test.db 
    265   sqlite3_db_config_lookaside db 0 0 0
    266   list [catch {db incrblob blobs v 1} msg] $msg
    267 } {1 {database schema has changed}}
    268 db close
    269 tvfs delete
    270 
    271 finish_test
    272 
    273