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      1 # 2011 March 15
      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 checks to make sure SQLite is able to gracEFully
     14 # handle malformed UTF-8.
     15 #
     16 
     17 set testdir [file dirname $argv0]
     18 source $testdir/tester.tcl
     19 
     20 proc utf8_to_ustr2 {s} {
     21   set r ""
     22   foreach i [split $s ""] {
     23     scan $i %c c
     24     append r [format \\u%04.4X $c]
     25   }
     26   set r
     27 }
     28 
     29 proc utf8_to_hstr {in} {
     30  regsub -all -- {(..)} $in {%[format "%s" \1]} out
     31  subst $out
     32 }
     33 
     34 proc utf8_to_xstr {in} {
     35  regsub -all -- {(..)} $in {\\\\x[format "%s" \1]} out
     36  subst $out
     37 }
     38 
     39 proc utf8_to_ustr {in} {
     40  regsub -all -- {(..)} $in {\\\\u[format "%04.4X" 0x\1]} out
     41  subst $out
     42 }
     43 
     44 do_test badutf2-1.0 {
     45   db close
     46   forcedelete test.db
     47   sqlite3 db test.db
     48   db eval "PRAGMA encoding = 'UTF-8'"
     49 } {}
     50 
     51 do_test badutf2-4.0 {
     52   set S [sqlite3_prepare_v2 db "SELECT ?" -1 dummy]
     53   sqlite3_expired $S
     54 } {0}
     55         
     56 foreach { i len uval xstr ustr u2u } {
     57 1 1 00     \x00         {}        {}
     58 2 1 01     \x01         "\\u0001" 01
     59 3 1 3F     \x3F         "\\u003F" 3F
     60 4 1 7F     \x7F         "\\u007F" 7F
     61 5 1 80     \x80         "\\u0080" C280
     62 6 1 C3BF   \xFF         "\\u00FF" C3BF
     63 7 3 EFBFBD \xEF\xBF\xBD "\\uFFFD" {}
     64 } {
     65 
     66   set hstr [ utf8_to_hstr $uval ]
     67 
     68   ifcapable bloblit {
     69     if {$hstr != "%00"} {
     70       do_test badutf2-2.1.$i {
     71         set sql "SELECT '$hstr'=CAST(x'$uval' AS text) AS x;"
     72         set res [ sqlite3_exec db $sql ]
     73         lindex [ lindex $res 1] 1
     74       } {1}
     75       do_test badutf2-2.2.$i {
     76         set sql "SELECT CAST('$hstr' AS blob)=x'$uval' AS x;"
     77         set res [ sqlite3_exec db $sql ]
     78         lindex [ lindex $res 1] 1
     79       } {1}
     80     }
     81     do_test badutf2-2.3.$i {
     82       set sql "SELECT hex(CAST(x'$uval' AS text)) AS x;"
     83       set res [ sqlite3_exec db $sql ]
     84       lindex [ lindex $res 1] 1
     85     } $uval
     86     do_test badutf2-2.4.$i {
     87       set sql "SELECT hex(CAST(x'$uval' AS text)) AS x;"
     88       set res [ sqlite3_exec db $sql ]
     89       lindex [ lindex $res 1] 1
     90     } $uval
     91   }
     92 
     93   if {$hstr != "%00"} {
     94     do_test badutf2-3.1.$i {
     95       set sql "SELECT hex('$hstr') AS x;"
     96       set res [ sqlite3_exec db $sql ]
     97       lindex [ lindex $res 1] 1
     98     } $uval
     99   }
    100 
    101   do_test badutf2-4.1.$i {
    102     sqlite3_reset $S
    103     sqlite3_bind_text $S 1 $xstr $len
    104     sqlite3_step $S
    105     utf8_to_ustr2 [ sqlite3_column_text $S 0 ]
    106   } $ustr
    107 
    108   ifcapable debug {
    109     do_test badutf2-5.1.$i {
    110       utf8_to_utf8 $uval
    111     } $u2u
    112   }
    113 
    114 }
    115 
    116 do_test badutf2-4.2 {
    117   sqlite3_finalize $S
    118 } {SQLITE_OK}
    119 
    120 
    121 finish_test
    122