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      1 # 2007 May 3
      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 # $Id: tkt2332.test,v 1.4 2007/09/12 17:01:45 danielk1977 Exp $
     13 #
     14 
     15 set testdir [file dirname $argv0]
     16 source $testdir/tester.tcl
     17 
     18 ifcapable !incrblob||!tclvar {
     19   finish_test
     20   return
     21 }
     22 
     23 do_test tkt2332.1 {
     24   execsql {
     25     CREATE TABLE blobs (k INTEGER PRIMARY KEY, v BLOB);
     26     PRAGMA cache_size = 100;
     27   }
     28 } {}
     29 
     30 set ::iKey 1
     31 foreach Len [list 10000 100000 1000000] {
     32   do_test tkt2332.$Len.1 {
     33     set val "[expr rand()][expr rand()][expr rand()][expr rand()][expr rand()]"
     34     set ::blobstr [string range \
     35       [string repeat $val [expr ($Len/[string length $val])+1]] 0 [expr $Len-1]
     36     ]
     37 
     38     db eval { INSERT INTO blobs VALUES($::iKey, zeroblob($Len)) }
     39   } {}
     40 
     41   do_test tkt2332.$Len.2 {
     42     execsql {
     43       SELECT length(v) FROM blobs WHERE k = $::iKey;
     44     }
     45   } $Len
     46 
     47   do_test tkt2332.$Len.3 {
     48     set ::fd [db incrblob blobs v $::iKey]
     49     puts -nonewline $::fd $::blobstr
     50     close $::fd
     51   } {}
     52 
     53   do_test tkt2332.$Len.4 {
     54     execsql { SELECT length(v) FROM blobs WHERE k = $::iKey; }
     55   } $Len
     56 
     57   do_test tkt2332.$Len.5 {
     58     lindex [execsql {SELECT v FROM blobs WHERE k = $::iKey}] 0
     59   } $::blobstr
     60 
     61   incr ::iKey
     62 }
     63 
     64 # Free memory:
     65 unset ::blobstr
     66 
     67 finish_test
     68