Return to substr.test CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test

sqlite3

    1: # 2007 May 14
    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
   12: # focus of this file is testing the built-in SUBSTR() functions.
   13: #
   14: # $Id: substr.test,v 1.1.1.1 2012/02/21 17:04:16 misho Exp $
   15: 
   16: set testdir [file dirname $argv0]
   17: source $testdir/tester.tcl
   18: 
   19: ifcapable !tclvar {
   20:   finish_test
   21:   return
   22: }
   23: 
   24: # Create a table to work with.
   25: #
   26: execsql { 
   27:   CREATE TABLE t1(t text, b blob)
   28: }
   29: proc substr-test {id string i1 i2 result} {
   30:   db eval {
   31:     DELETE FROM t1;
   32:     INSERT INTO t1(t) VALUES($string)
   33:   }
   34:   do_test substr-$id.1 [subst {
   35:     execsql {
   36:       SELECT substr(t, $i1, $i2) FROM t1
   37:     }
   38:   }] [list $result]
   39:   set qstr '[string map {' ''} $string]'
   40:   do_test substr-$id.2 [subst {
   41:     execsql {
   42:       SELECT substr($qstr, $i1, $i2)
   43:     }
   44:   }] [list $result]
   45: }
   46: proc subblob-test {id hex i1 i2 hexresult} {
   47:   db eval "
   48:     DELETE FROM t1;
   49:     INSERT INTO t1(b) VALUES(x'$hex')
   50:   "
   51:   do_test substr-$id.1 [subst {
   52:     execsql {
   53:       SELECT hex(substr(b, $i1, $i2)) FROM t1
   54:     }
   55:   }] [list $hexresult]
   56:   do_test substr-$id.2 [subst {
   57:     execsql {
   58:       SELECT hex(substr(x'$hex', $i1, $i2))
   59:     }
   60:   }] [list $hexresult]
   61: }
   62: 
   63: # Basic SUBSTR functionality
   64: #
   65: substr-test 1.1 abcdefg 1 1 a
   66: substr-test 1.2 abcdefg 2 1 b
   67: substr-test 1.3 abcdefg 1 2 ab
   68: substr-test 1.4 abcdefg 1 100 abcdefg
   69: substr-test 1.5 abcdefg 0 2 a
   70: substr-test 1.6 abcdefg -1 1 g
   71: substr-test 1.7 abcdefg -1 10 g
   72: substr-test 1.8 abcdefg -5 3 cde
   73: substr-test 1.9 abcdefg -7 3 abc
   74: substr-test 1.10 abcdefg -100 98 abcde
   75: substr-test 1.11 abcdefg 5 -1 d
   76: substr-test 1.12 abcdefg 5 -4 abcd
   77: substr-test 1.13 abcdefg 5 -5 abcd
   78: substr-test 1.14 abcdefg -5 -1 b
   79: substr-test 1.15 abcdefg -5 -2 ab
   80: substr-test 1.16 abcdefg -5 -3 ab
   81: substr-test 1.17 abcdefg 100 200 {}
   82: substr-test 1.18 abcdefg 200 100 {}
   83: 
   84: # Make sure NULL is returned if any parameter is NULL
   85: #
   86: do_test substr-1.90 {
   87:   db eval {SELECT ifnull(substr(NULL,1,1),'nil')}
   88: } nil
   89: do_test substr-1.91 {
   90:   db eval {SELECT ifnull(substr(NULL,1),'nil')}
   91: } nil
   92: do_test substr-1.92 {
   93:   db eval {SELECT ifnull(substr('abcdefg',NULL,1),'nil')}
   94: } nil
   95: do_test substr-1.93 {
   96:   db eval {SELECT ifnull(substr('abcdefg',NULL),'nil')}
   97: } nil
   98: do_test substr-1.94 {
   99:   db eval {SELECT ifnull(substr('abcdefg',1,NULL),'nil')}
  100: } nil
  101: 
  102: # Make sure everything works with long unicode characters
  103: #
  104: substr-test 2.1 \u1234\u2345\u3456 1 1 \u1234
  105: substr-test 2.2 \u1234\u2345\u3456 2 1 \u2345
  106: substr-test 2.3 \u1234\u2345\u3456 1 2 \u1234\u2345
  107: substr-test 2.4 \u1234\u2345\u3456 -1 1 \u3456
  108: substr-test 2.5 a\u1234b\u2345c\u3456c -5 3 b\u2345c
  109: substr-test 2.6 a\u1234b\u2345c\u3456c -2 -3 b\u2345c
  110: 
  111: # Basic functionality for BLOBs
  112: #
  113: subblob-test 3.1 61626364656667 1 1 61
  114: subblob-test 3.2 61626364656667 2 1 62
  115: subblob-test 3.3 61626364656667 1 2 6162
  116: subblob-test 3.4 61626364656667 1 100 61626364656667
  117: subblob-test 3.5 61626364656667 0 2 61
  118: subblob-test 3.6 61626364656667 -1 1 67
  119: subblob-test 3.7 61626364656667 -1 10 67
  120: subblob-test 3.8 61626364656667 -5 3 636465
  121: subblob-test 3.9 61626364656667 -7 3 616263
  122: subblob-test 3.10 61626364656667 -100 98 6162636465
  123: subblob-test 3.11 61626364656667 100 200 {}
  124: subblob-test 3.12 61626364656667 200 100 {}
  125: 
  126: # If these blobs were strings, then they would contain multi-byte
  127: # characters.  But since they are blobs, the substr indices refer
  128: # to bytes.
  129: #
  130: subblob-test 4.1 61E188B462E28D8563E3919663 1 1 61
  131: subblob-test 4.2 61E188B462E28D8563E3919663 2 1 E1
  132: subblob-test 4.3 61E188B462E28D8563E3919663 1 2 61E1
  133: subblob-test 4.4 61E188B462E28D8563E3919663 -2 1 96
  134: subblob-test 4.5 61E188B462E28D8563E3919663 -5 4 63E39196
  135: subblob-test 4.6 61E188B462E28D8563E3919663 -100 98 61E188B462E28D8563E391 
  136: 
  137: # Two-argument SUBSTR
  138: #
  139: proc substr-2-test {id string idx result} {
  140:   db eval {
  141:     DELETE FROM t1;
  142:     INSERT INTO t1(t) VALUES($string)
  143:   }
  144:   do_test substr-$id.1 [subst {
  145:     execsql {
  146:       SELECT substr(t, $idx) FROM t1
  147:     }
  148:   }] [list $result]
  149:   set qstr '[string map {' ''} $string]'
  150:   do_test substr-$id.2 [subst {
  151:     execsql {
  152:       SELECT substr($qstr, $idx)
  153:     }
  154:   }] [list $result]
  155: }
  156: substr-2-test 5.1 abcdefghijklmnop 5 efghijklmnop
  157: substr-2-test 5.2 abcdef -5 bcdef
  158: 
  159: finish_test