sl@0: # 2008 June 9
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: #
sl@0: # Test that it is possible to have two open blob handles on a single
sl@0: # blob object.
sl@0: #
sl@0: # $Id: incrblob2.test,v 1.8 2008/06/28 15:33:26 danielk1977 Exp $
sl@0: #
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: 
sl@0: ifcapable {!autovacuum || !pragma || !incrblob} {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: do_test incrblob2-1.0 {
sl@0:   execsql {
sl@0:     CREATE TABLE blobs(id INTEGER PRIMARY KEY, data BLOB);
sl@0:     INSERT INTO blobs VALUES(NULL, zeroblob(5000));
sl@0:     INSERT INTO blobs VALUES(NULL, zeroblob(5000));
sl@0:     INSERT INTO blobs VALUES(NULL, zeroblob(5000));
sl@0:     INSERT INTO blobs VALUES(NULL, zeroblob(5000));
sl@0:   }
sl@0: } {}
sl@0: 
sl@0: foreach iOffset [list 0 256 4094] {
sl@0:   do_test incrblob2-1.$iOffset.1 {
sl@0:     set fd [db incrblob blobs data 1]
sl@0:     puts $fd "[string repeat x $iOffset]SQLite version 3.6.0"
sl@0:     close $fd
sl@0:   } {}
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.2 {
sl@0:     set fd1 [db incrblob blobs data 1]
sl@0:     set fd2 [db incrblob blobs data 1]
sl@0:     fconfigure $fd1 -buffering none
sl@0:     fconfigure $fd2 -buffering none
sl@0:     if {$iOffset != 0} {
sl@0:       seek $fd2 $iOffset start
sl@0:       seek $fd1 $iOffset start
sl@0:     }
sl@0:     read $fd1 6
sl@0:   } {SQLite}
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.3 {
sl@0:     read $fd2 6
sl@0:   } {SQLite}
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.4 {
sl@0:     seek $fd2 $iOffset start
sl@0:     seek $fd1 $iOffset start
sl@0:     puts -nonewline $fd2 "etiLQS"
sl@0:   } {}
sl@0: 
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.5 {
sl@0:     seek $fd1 $iOffset start
sl@0:     read $fd1 6
sl@0:   } {etiLQS}
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.6 {
sl@0:     seek $fd2 $iOffset start
sl@0:     read $fd2 6
sl@0:   } {etiLQS}
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.7 {
sl@0:     seek $fd1 $iOffset start
sl@0:     read $fd1 6
sl@0:   } {etiLQS}
sl@0:   
sl@0:   do_test incrblob2-1.$iOffset.8 {
sl@0:     close $fd1
sl@0:     close $fd2
sl@0:   } {}
sl@0: }
sl@0: 
sl@0: #--------------------------------------------------------------------------
sl@0: 
sl@0: foreach iOffset [list 0 256 4094] {
sl@0: 
sl@0:   do_test incrblob2-2.$iOffset.1 {
sl@0:     set fd1 [db incrblob blobs data 1]
sl@0:     seek $fd1 [expr $iOffset - 5000] end
sl@0:     fconfigure $fd1 -buffering none
sl@0: 
sl@0:     set fd2 [db incrblob blobs data 1]
sl@0:     seek $fd2 [expr $iOffset - 5000] end
sl@0:     fconfigure $fd2 -buffering none
sl@0: 
sl@0:     puts -nonewline $fd1 "123456"
sl@0:   } {}
sl@0:   
sl@0:   do_test incrblob2-2.$iOffset.2 {
sl@0:     read $fd2 6
sl@0:   } {123456}
sl@0: 
sl@0:   do_test incrblob2-2.$iOffset.3 {
sl@0:     close $fd1
sl@0:     close $fd2
sl@0:   } {}
sl@0: }
sl@0: 
sl@0: do_test incrblob2-3.1 {
sl@0:   set fd1 [db incrblob blobs data 1]
sl@0:   fconfigure $fd1 -buffering none
sl@0: } {}
sl@0: do_test incrblob2-3.2 {
sl@0:   execsql {
sl@0:     INSERT INTO blobs VALUES(5, zeroblob(10240));
sl@0:   }
sl@0: } {}
sl@0: do_test incrblob2-3.3 {
sl@0:   set rc [catch { read $fd1 6 } msg]
sl@0:   list $rc $msg
sl@0: } {0 123456}
sl@0: do_test incrblob2-3.4 {
sl@0:   close $fd1
sl@0: } {}
sl@0: 
sl@0: #--------------------------------------------------------------------------
sl@0: # The following tests - incrblob2-4.* - test that blob handles are 
sl@0: # invalidated at the correct times.
sl@0: #
sl@0: do_test incrblob2-4.1 {
sl@0:   unset -nocomplain data
sl@0:   db eval BEGIN
sl@0:   db eval { CREATE TABLE t1(id INTEGER PRIMARY KEY, data BLOB); }
sl@0:   for {set ii 1} {$ii < 100} {incr ii} {
sl@0:     set data [string repeat "blob$ii" 500]
sl@0:     db eval { INSERT INTO t1 VALUES($ii, $data) }
sl@0:   }
sl@0:   db eval COMMIT
sl@0: } {}
sl@0: 
sl@0: proc aborted_handles {} {
sl@0:   global handles
sl@0: 
sl@0:   set aborted {}
sl@0:   for {set ii 1} {$ii < 100} {incr ii} {
sl@0:     set str "blob$ii"
sl@0:     set nByte [string length $str]
sl@0:     set iOffset [expr $nByte * $ii * 2]
sl@0: 
sl@0:     set rc [catch {sqlite3_blob_read $handles($ii) $iOffset $nByte} msg]
sl@0:     if {$rc && $msg eq "SQLITE_ABORT"} {
sl@0:       lappend aborted $ii
sl@0:     } else {
sl@0:       if {$rc || $msg ne $str} {
sl@0:         error "blob $ii: $msg"
sl@0:       }
sl@0:     }
sl@0:   }
sl@0:   set aborted
sl@0: }
sl@0: 
sl@0: do_test incrblob2-4.2 {
sl@0:   for {set ii 1} {$ii < 100} {incr ii} {
sl@0:     set handles($ii) [db incrblob t1 data $ii]
sl@0:   }
sl@0:   aborted_handles
sl@0: } {}
sl@0: 
sl@0: # Update row 3. This should abort handle 3 but leave all others untouched.
sl@0: #
sl@0: do_test incrblob2-4.3 {
sl@0:   db eval {UPDATE t1 SET data = data || '' WHERE id = 3}
sl@0:   aborted_handles
sl@0: } {3}
sl@0: 
sl@0: # Test that a write to handle 3 also returns SQLITE_ABORT.
sl@0: #
sl@0: do_test incrblob2-4.3.1 {
sl@0:   set rc [catch {sqlite3_blob_write $::handles(3) 10 HELLO} msg]
sl@0:   list $rc $msg
sl@0: } {1 SQLITE_ABORT}
sl@0: 
sl@0: # Delete row 14. This should abort handle 6 but leave all others untouched.
sl@0: #
sl@0: do_test incrblob2-4.4 {
sl@0:   db eval {DELETE FROM t1 WHERE id = 14}
sl@0:   aborted_handles
sl@0: } {3 14}
sl@0: 
sl@0: # Change the rowid of row 15 to 102. Should abort handle 15.
sl@0: #
sl@0: do_test incrblob2-4.5 {
sl@0:   db eval {UPDATE t1 SET id = 102 WHERE id = 15}
sl@0:   aborted_handles
sl@0: } {3 14 15}
sl@0: 
sl@0: # Clobber row 92 using INSERT OR REPLACE.
sl@0: #
sl@0: do_test incrblob2-4.6 {
sl@0:   db eval {INSERT OR REPLACE INTO t1 VALUES(92, zeroblob(1000))}
sl@0:   aborted_handles
sl@0: } {3 14 15 92}
sl@0: 
sl@0: # Clobber row 65 using UPDATE OR REPLACE on row 35. This should abort 
sl@0: # handles 35 and 65.
sl@0: #
sl@0: do_test incrblob2-4.7 {
sl@0:   db eval {UPDATE OR REPLACE t1 SET id = 65 WHERE id = 35}
sl@0:   aborted_handles
sl@0: } {3 14 15 35 65 92}
sl@0: 
sl@0: # Insert a couple of new rows. This should not invalidate any handles.
sl@0: #
sl@0: do_test incrblob2-4.9 {
sl@0:   db eval {INSERT INTO t1 SELECT NULL, data FROM t1}
sl@0:   aborted_handles
sl@0: } {3 14 15 35 65 92}
sl@0: 
sl@0: # Delete all rows from 1 to 25. This should abort all handles up to 25.
sl@0: #
sl@0: do_test incrblob2-4.9 {
sl@0:   db eval {DELETE FROM t1 WHERE id >=1 AND id <= 25}
sl@0:   aborted_handles
sl@0: } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 35 65 92}
sl@0: 
sl@0: # Delete the whole table (this will use sqlite3BtreeClearTable()). All handles
sl@0: # should now be aborted.
sl@0: #
sl@0: do_test incrblob2-4.10 {
sl@0:   db eval {DELETE FROM t1}
sl@0:   aborted_handles
sl@0: } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99}
sl@0: 
sl@0: do_test incrblob2-4.1.X {
sl@0:   for {set ii 1} {$ii < 100} {incr ii} {
sl@0:     close $handles($ii) 
sl@0:   }
sl@0: } {}
sl@0: 
sl@0: #--------------------------------------------------------------------------
sl@0: # The following tests - incrblob2-5.* - test that in shared cache an open
sl@0: # blob handle counts as a read-lock on its table.
sl@0: #
sl@0: ifcapable shared_cache {
sl@0:   db close
sl@0:   set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
sl@0: 
sl@0:   do_test incrblob2-5.1 {
sl@0:     sqlite3 db test.db
sl@0:     sqlite3 db2 test.db
sl@0: 
sl@0:     execsql {
sl@0:       INSERT INTO t1 VALUES(1, 'abcde');
sl@0:     }
sl@0:   } {}
sl@0: 
sl@0:   do_test incrblob2-5.2 {
sl@0:     catchsql { INSERT INTO t1 VALUES(2, 'fghij') } db2
sl@0:   } {0 {}}
sl@0: 
sl@0:   do_test incrblob2-5.3 {
sl@0:     set blob [db incrblob t1 data 1]
sl@0:     catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
sl@0:   } {1 {database is locked}}
sl@0: 
sl@0:   do_test incrblob2-5.4 {
sl@0:     close $blob
sl@0:     execsql BEGIN db2
sl@0:     catchsql { INSERT INTO t1 VALUES(4, 'pqrst') } db2
sl@0:   } {0 {}}
sl@0: 
sl@0:   do_test incrblob2-5.5 {
sl@0:     set blob [db incrblob -readonly t1 data 1]
sl@0:     catchsql { INSERT INTO t1 VALUES(5, 'uvwxy') } db2
sl@0:   } {1 {database table is locked}}
sl@0: 
sl@0:   do_test incrblob2-5.6 {
sl@0:     close $blob
sl@0:     catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
sl@0:   } {0 {}}
sl@0: 
sl@0:   db2 close
sl@0:   db close
sl@0:   sqlite3_enable_shared_cache $::enable_shared_cache
sl@0: }
sl@0: 
sl@0: #--------------------------------------------------------------------------
sl@0: # The following tests - incrblob2-6.* - test a specific scenario that might
sl@0: # be causing an error.
sl@0: #
sl@0: sqlite3 db test.db
sl@0: do_test incrblob2-6.1 {
sl@0:   execsql {
sl@0:     DELETE FROM t1;
sl@0:     INSERT INTO t1 VALUES(1, zeroblob(100));
sl@0:   }
sl@0:   
sl@0:   set rdHandle [db incrblob -readonly t1 data 1]
sl@0:   set wrHandle [db incrblob t1 data 1]
sl@0: 
sl@0:   sqlite3_blob_read $rdHandle 0 100
sl@0: 
sl@0:   sqlite3_blob_write $wrHandle 0 ABCDEF
sl@0: 
sl@0:   close $wrHandle
sl@0:   close $rdHandle
sl@0: } {}
sl@0: 
sl@0: do_test incrblob2-6.2 {
sl@0:   set rdHandle [db incrblob -readonly t1 data 1]
sl@0:   sqlite3_blob_read $rdHandle 0 2
sl@0: } {AB}
sl@0: 
sl@0: do_test incrblob2-6.3 {
sl@0:   set wrHandle [db incrblob t1 data 1]
sl@0:   sqlite3_blob_write $wrHandle 0 ZZZZZZZZZZ
sl@0:   sqlite3_blob_read $rdHandle 2 4
sl@0: } {ZZZZ}
sl@0: 
sl@0: do_test incrblob2-6.4 {
sl@0:   close $wrHandle
sl@0:   close $rdHandle
sl@0: } {}
sl@0: 
sl@0: sqlite3_memory_highwater 1
sl@0: do_test incrblob2-7.1 {
sl@0:   db eval {
sl@0:     CREATE TABLE t2(B BLOB);
sl@0:     INSERT INTO t2 VALUES(zeroblob(10 * 1024 * 1024)); 
sl@0:   }
sl@0:   expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
sl@0: } {1}
sl@0: 
sl@0: do_test incrblob2-7.2 {
sl@0:   set h [db incrblob t2 B 1]
sl@0:   expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
sl@0: } {1}
sl@0: 
sl@0: do_test incrblob2-7.3 {
sl@0:   seek $h 0 end
sl@0:   tell $h
sl@0: } [expr 10 * 1024 * 1024]
sl@0: 
sl@0: do_test incrblob2-7.4 {
sl@0:   expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
sl@0: } {1}
sl@0: 
sl@0: do_test incrblob2-7.5 {
sl@0:   close $h
sl@0: } {}
sl@0: 
sl@0: #---------------------------------------------------------------------------
sl@0: # The following tests, incrblob2-8.*, test that nothing terrible happens
sl@0: # when a statement transaction is rolled back while there are open 
sl@0: # incremental-blob handles. At one point an assert() was failing when
sl@0: # this was attempted.
sl@0: #
sl@0: do_test incrblob2-8.1 {
sl@0:   execsql BEGIN
sl@0:   set h [db incrblob t2 B 1]
sl@0:   set rc [catch {
sl@0:     db eval {SELECT ROWID FROM t2} { execsql "DROP TABLE t2" }
sl@0:   } msg] 
sl@0:   list $rc $msg
sl@0: } {1 {database table is locked}}
sl@0: do_test incrblob2-8.2 {
sl@0:   close $h
sl@0:   execsql COMMIT
sl@0: } {}
sl@0: do_test incrblob2-8.3 {
sl@0:   execsql {
sl@0:     CREATE TABLE t3(a INTEGER UNIQUE, b TEXT);
sl@0:     INSERT INTO t3 VALUES(1, 'aaaaaaaaaaaaaaaaaaaa');
sl@0:     INSERT INTO t3 VALUES(2, 'bbbbbbbbbbbbbbbbbbbb');
sl@0:     INSERT INTO t3 VALUES(3, 'cccccccccccccccccccc');
sl@0:     INSERT INTO t3 VALUES(4, 'dddddddddddddddddddd');
sl@0:     INSERT INTO t3 VALUES(5, 'eeeeeeeeeeeeeeeeeeee');
sl@0:   }
sl@0: } {}
sl@0: do_test incrblob2-8.4 {
sl@0:   execsql BEGIN
sl@0:   set h [db incrblob t3 b 3]
sl@0:   sqlite3_blob_read $h 0 20
sl@0: } {cccccccccccccccccccc}
sl@0: do_test incrblob2-8.5 {
sl@0:   catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
sl@0: } {1 {column a is not unique}}
sl@0: do_test incrblob2-8.6 {
sl@0:   catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
sl@0: } {1 {column a is not unique}}
sl@0: do_test incrblob2-8.7 {
sl@0:   sqlite3_blob_read $h 0 20
sl@0: } {cccccccccccccccccccc}
sl@0: do_test incrblob2-8.8 {
sl@0:   catchsql {UPDATE t3 SET a = 6 WHERE a = 3 OR a = 5}
sl@0: } {1 {column a is not unique}}
sl@0: do_test incrblob2-8.9 {
sl@0:   set rc [catch {sqlite3_blob_read $h 0 20} msg]
sl@0:   list $rc $msg
sl@0: } {1 SQLITE_ABORT}
sl@0: do_test incrblob2-8.X {
sl@0:   close $h
sl@0: } {}
sl@0: 
sl@0: finish_test