persistentstorage/sqlite3api/TEST/TclScript/fts3atoken.test
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     1 # 2007 June 21
       
     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. The focus 
       
    12 # of this script is testing the pluggable tokeniser feature of the 
       
    13 # FTS3 module.
       
    14 #
       
    15 # $Id: fts3atoken.test,v 1.1 2007/08/20 17:38:42 shess Exp $
       
    16 #
       
    17 
       
    18 set testdir [file dirname $argv0]
       
    19 source $testdir/tester.tcl
       
    20 
       
    21 # If SQLITE_ENABLE_FTS3 is defined, omit this file.
       
    22 ifcapable !fts3 {
       
    23   finish_test
       
    24   return
       
    25 }
       
    26 
       
    27 proc escape_string {str} {
       
    28   set out ""
       
    29   foreach char [split $str ""] {
       
    30     scan $char %c i
       
    31     if {$i<=127} {
       
    32       append out $char
       
    33     } else {
       
    34       append out [format {\x%.4x} $i]
       
    35     }
       
    36   }
       
    37   set out
       
    38 }
       
    39 
       
    40 #--------------------------------------------------------------------------
       
    41 # Test cases fts3token-1.* are the warm-body test for the SQL scalar
       
    42 # function fts3_tokenizer(). The procedure is as follows:
       
    43 #
       
    44 #   1: Verify that there is no such fts3 tokenizer as 'blah'.
       
    45 #
       
    46 #   2: Query for the built-in tokenizer 'simple'. Insert a copy of the
       
    47 #      retrieved value as tokenizer 'blah'.
       
    48 #
       
    49 #   3: Test that the value returned for tokenizer 'blah' is now the
       
    50 #      same as that retrieved for 'simple'.
       
    51 #
       
    52 #   4: Test that it is now possible to create an fts3 table using 
       
    53 #      tokenizer 'blah' (it was not possible in step 1).
       
    54 #
       
    55 #   5: Test that the table created to use tokenizer 'blah' is usable.
       
    56 #
       
    57 do_test fts3token-1.1 {
       
    58   catchsql {
       
    59     CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize blah);
       
    60   }
       
    61 } {1 {unknown tokenizer: blah}}
       
    62 do_test fts3token-1.2 {
       
    63   execsql {
       
    64     SELECT fts3_tokenizer('blah', fts3_tokenizer('simple')) IS NULL;
       
    65   }
       
    66 } {0}
       
    67 do_test fts3token-1.3 {
       
    68   execsql {
       
    69     SELECT fts3_tokenizer('blah') == fts3_tokenizer('simple');
       
    70   }
       
    71 } {1}
       
    72 do_test fts3token-1.4 {
       
    73   catchsql {
       
    74     CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize blah);
       
    75   }
       
    76 } {0 {}}
       
    77 do_test fts3token-1.5 {
       
    78   execsql {
       
    79     INSERT INTO t1(content) VALUES('There was movement at the station');
       
    80     INSERT INTO t1(content) VALUES('For the word has passed around');
       
    81     INSERT INTO t1(content) VALUES('That the colt from ol regret had got away');
       
    82     SELECT content FROM t1 WHERE content MATCH 'movement'
       
    83   }
       
    84 } {{There was movement at the station}}
       
    85 
       
    86 #--------------------------------------------------------------------------
       
    87 # Test cases fts3token-2.* test error cases in the scalar function based
       
    88 # API for getting and setting tokenizers.
       
    89 #
       
    90 do_test fts3token-2.1 {
       
    91   catchsql {
       
    92     SELECT fts3_tokenizer('nosuchtokenizer');
       
    93   }
       
    94 } {1 {unknown tokenizer: nosuchtokenizer}}
       
    95 
       
    96 #--------------------------------------------------------------------------
       
    97 # Test cases fts3token-3.* test the three built-in tokenizers with a
       
    98 # simple input string via the built-in test function. This is as much
       
    99 # to test the test function as the tokenizer implementations.
       
   100 #
       
   101 do_test fts3token-3.1 {
       
   102   execsql {
       
   103     SELECT fts3_tokenizer_test('simple', 'I don''t see how');
       
   104   }
       
   105 } {{0 i I 1 don don 2 t t 3 see see 4 how how}}
       
   106 do_test fts3token-3.2 {
       
   107   execsql {
       
   108     SELECT fts3_tokenizer_test('porter', 'I don''t see how');
       
   109   }
       
   110 } {{0 i I 1 don don 2 t t 3 see see 4 how how}}
       
   111 ifcapable icu {
       
   112   do_test fts3token-3.3 {
       
   113     execsql {
       
   114       SELECT fts3_tokenizer_test('icu', 'I don''t see how');
       
   115     }
       
   116   } {{0 i I 1 don't don't 2 see see 3 how how}}
       
   117 }
       
   118 
       
   119 #--------------------------------------------------------------------------
       
   120 # Test cases fts3token-4.* test the ICU tokenizer. In practice, this
       
   121 # tokenizer only has two modes - "thai" and "everybody else". Some other
       
   122 # Asian languages (Lao, Khmer etc.) require the same special treatment as 
       
   123 # Thai, but ICU doesn't support them yet.
       
   124 #
       
   125 ifcapable icu {
       
   126 
       
   127   proc do_icu_test {name locale input output} {
       
   128     set ::out [db eval { SELECT fts3_tokenizer_test('icu', $locale, $input) }]
       
   129     do_test $name {
       
   130       lindex $::out 0
       
   131     } $output
       
   132   }
       
   133   
       
   134   do_icu_test fts3token-4.1 en_US  {}   {}
       
   135   do_icu_test fts3token-4.2 en_US {Test cases fts3} [list \
       
   136     0 test Test 1 cases cases 2 fts3 fts3
       
   137   ]
       
   138 
       
   139   # The following test shows that ICU is smart enough to recognise
       
   140   # Thai chararacters, even when the locale is set to English/United 
       
   141   # States.
       
   142   #
       
   143   set input "\u0e2d\u0e30\u0e44\u0e23\u0e19\u0e30\u0e04\u0e23\u0e31\u0e1a"
       
   144   set output    "0 \u0e2d\u0e30\u0e44\u0e23 \u0e2d\u0e30\u0e44\u0e23 "
       
   145   append output "1 \u0e19\u0e30 \u0e19\u0e30 "
       
   146   append output "2 \u0e04\u0e23\u0e31\u0e1a \u0e04\u0e23\u0e31\u0e1a"
       
   147 
       
   148   do_icu_test fts3token-4.3 th_TH  $input $output
       
   149   do_icu_test fts3token-4.4 en_US  $input $output
       
   150 
       
   151   # ICU handles an unknown locale by falling back to the default.
       
   152   # So this is not an error.
       
   153   do_icu_test fts3token-4.5 MiddleOfTheOcean  $input $output
       
   154 
       
   155   set    longtoken "AReallyReallyLongTokenOneThatWillSurelyRequire"
       
   156   append longtoken "AReallocInTheIcuTokenizerCode"
       
   157 
       
   158   set    input "short tokens then "
       
   159   append input $longtoken
       
   160   set    output "0 short short "
       
   161   append output "1 tokens tokens "
       
   162   append output "2 then then "
       
   163   append output "3 [string tolower $longtoken] $longtoken"
       
   164 
       
   165   do_icu_test fts3token-4.6 MiddleOfTheOcean  $input $output
       
   166   do_icu_test fts3token-4.7 th_TH  $input $output
       
   167   do_icu_test fts3token-4.8 en_US  $input $output
       
   168 }
       
   169 
       
   170 do_test fts3token-internal {
       
   171   execsql { SELECT fts3_tokenizer_internal_test() }
       
   172 } {ok}
       
   173 
       
   174 finish_test