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| 1 # 2012 October 24 | |
| 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 INSTR() functions. | |
| 13 # | |
| 14 # EVIDENCE-OF: R-27549-59611 The instr(X,Y) function finds the first | |
| 15 # occurrence of string Y within string X and returns the number of prior | |
| 16 # characters plus 1, or 0 if Y is nowhere found within X. | |
| 17 # | |
| 18 | |
| 19 | |
| 20 set testdir [file dirname $argv0] | |
| 21 source $testdir/tester.tcl | |
| 22 | |
| 23 # Create a table to work with. | |
| 24 # | |
| 25 do_test instr-1.1 { | |
| 26 db eval {SELECT instr('abcdefg','a');} | |
| 27 } {1} | |
| 28 do_test instr-1.2 { | |
| 29 db eval {SELECT instr('abcdefg','b');} | |
| 30 } {2} | |
| 31 do_test instr-1.3 { | |
| 32 db eval {SELECT instr('abcdefg','c');} | |
| 33 } {3} | |
| 34 do_test instr-1.4 { | |
| 35 db eval {SELECT instr('abcdefg','d');} | |
| 36 } {4} | |
| 37 do_test instr-1.5 { | |
| 38 db eval {SELECT instr('abcdefg','e');} | |
| 39 } {5} | |
| 40 do_test instr-1.6 { | |
| 41 db eval {SELECT instr('abcdefg','f');} | |
| 42 } {6} | |
| 43 do_test instr-1.7 { | |
| 44 db eval {SELECT instr('abcdefg','g');} | |
| 45 } {7} | |
| 46 do_test instr-1.8 { | |
| 47 db eval {SELECT instr('abcdefg','h');} | |
| 48 } {0} | |
| 49 do_test instr-1.9 { | |
| 50 db eval {SELECT instr('abcdefg','abcdefg');} | |
| 51 } {1} | |
| 52 do_test instr-1.10 { | |
| 53 db eval {SELECT instr('abcdefg','abcdefgh');} | |
| 54 } {0} | |
| 55 do_test instr-1.11 { | |
| 56 db eval {SELECT instr('abcdefg','bcdefg');} | |
| 57 } {2} | |
| 58 do_test instr-1.12 { | |
| 59 db eval {SELECT instr('abcdefg','bcdefgh');} | |
| 60 } {0} | |
| 61 do_test instr-1.13 { | |
| 62 db eval {SELECT instr('abcdefg','cdefg');} | |
| 63 } {3} | |
| 64 do_test instr-1.14 { | |
| 65 db eval {SELECT instr('abcdefg','cdefgh');} | |
| 66 } {0} | |
| 67 do_test instr-1.15 { | |
| 68 db eval {SELECT instr('abcdefg','defg');} | |
| 69 } {4} | |
| 70 do_test instr-1.16 { | |
| 71 db eval {SELECT instr('abcdefg','defgh');} | |
| 72 } {0} | |
| 73 do_test instr-1.17 { | |
| 74 db eval {SELECT instr('abcdefg','efg');} | |
| 75 } {5} | |
| 76 do_test instr-1.18 { | |
| 77 db eval {SELECT instr('abcdefg','efgh');} | |
| 78 } {0} | |
| 79 do_test instr-1.19 { | |
| 80 db eval {SELECT instr('abcdefg','fg');} | |
| 81 } {6} | |
| 82 do_test instr-1.20 { | |
| 83 db eval {SELECT instr('abcdefg','fgh');} | |
| 84 } {0} | |
| 85 do_test instr-1.21 { | |
| 86 db eval {SELECT coalesce(instr('abcdefg',NULL),'nil');} | |
| 87 } {nil} | |
| 88 do_test instr-1.22 { | |
| 89 db eval {SELECT coalesce(instr(NULL,'x'),'nil');} | |
| 90 } {nil} | |
| 91 do_test instr-1.23 { | |
| 92 db eval {SELECT instr(12345,34);} | |
| 93 } {3} | |
| 94 do_test instr-1.24 { | |
| 95 db eval {SELECT instr(123456.78,34);} | |
| 96 } {3} | |
| 97 do_test instr-1.25 { | |
| 98 db eval {SELECT instr(123456.78,x'3334');} | |
| 99 } {3} | |
| 100 do_test instr-1.26 { | |
| 101 db eval {SELECT instr('äbcdefg','efg');} | |
| 102 } {5} | |
| 103 do_test instr-1.27 { | |
| 104 db eval {SELECT instr('€xyzzy','xyz');} | |
| 105 } {2} | |
| 106 do_test instr-1.28 { | |
| 107 db eval {SELECT instr('abc€xyzzy','xyz');} | |
| 108 } {5} | |
| 109 do_test instr-1.29 { | |
| 110 db eval {SELECT instr('abc€xyzzy','€xyz');} | |
| 111 } {4} | |
| 112 do_test instr-1.30 { | |
| 113 db eval {SELECT instr('abc€xyzzy','c€xyz');} | |
| 114 } {3} | |
| 115 do_test instr-1.31 { | |
| 116 db eval {SELECT instr(x'0102030405',x'01');} | |
| 117 } {1} | |
| 118 do_test instr-1.32 { | |
| 119 db eval {SELECT instr(x'0102030405',x'02');} | |
| 120 } {2} | |
| 121 do_test instr-1.33 { | |
| 122 db eval {SELECT instr(x'0102030405',x'03');} | |
| 123 } {3} | |
| 124 do_test instr-1.34 { | |
| 125 db eval {SELECT instr(x'0102030405',x'04');} | |
| 126 } {4} | |
| 127 do_test instr-1.35 { | |
| 128 db eval {SELECT instr(x'0102030405',x'05');} | |
| 129 } {5} | |
| 130 do_test instr-1.36 { | |
| 131 db eval {SELECT instr(x'0102030405',x'06');} | |
| 132 } {0} | |
| 133 do_test instr-1.37 { | |
| 134 db eval {SELECT instr(x'0102030405',x'0102030405');} | |
| 135 } {1} | |
| 136 do_test instr-1.38 { | |
| 137 db eval {SELECT instr(x'0102030405',x'02030405');} | |
| 138 } {2} | |
| 139 do_test instr-1.39 { | |
| 140 db eval {SELECT instr(x'0102030405',x'030405');} | |
| 141 } {3} | |
| 142 do_test instr-1.40 { | |
| 143 db eval {SELECT instr(x'0102030405',x'0405');} | |
| 144 } {4} | |
| 145 do_test instr-1.41 { | |
| 146 db eval {SELECT instr(x'0102030405',x'0506');} | |
| 147 } {0} | |
| 148 do_test instr-1.42 { | |
| 149 db eval {SELECT instr(x'0102030405',x'');} | |
| 150 } {1} | |
| 151 do_test instr-1.43 { | |
| 152 db eval {SELECT instr(x'',x'');} | |
| 153 } {1} | |
| 154 do_test instr-1.44 { | |
| 155 db eval {SELECT instr('','');} | |
| 156 } {1} | |
| 157 do_test instr-1.45 { | |
| 158 db eval {SELECT instr('abcdefg','');} | |
| 159 } {1} | |
| 160 unset -nocomplain longstr | |
| 161 set longstr abcdefghijklmonpqrstuvwxyz | |
| 162 append longstr $longstr | |
| 163 append longstr $longstr | |
| 164 append longstr $longstr | |
| 165 append longstr $longstr | |
| 166 append longstr $longstr | |
| 167 append longstr $longstr | |
| 168 append longstr $longstr | |
| 169 append longstr $longstr | |
| 170 append longstr $longstr | |
| 171 append longstr $longstr | |
| 172 append longstr $longstr | |
| 173 append longstr $longstr | |
| 174 # puts [string length $longstr] | |
| 175 append longstr Xabcde | |
| 176 do_test instr-1.46 { | |
| 177 db eval {SELECT instr($longstr,'X');} | |
| 178 } {106497} | |
| 179 do_test instr-1.47 { | |
| 180 db eval {SELECT instr($longstr,'Y');} | |
| 181 } {0} | |
| 182 do_test instr-1.48 { | |
| 183 db eval {SELECT instr($longstr,'Xa');} | |
| 184 } {106497} | |
| 185 do_test instr-1.49 { | |
| 186 db eval {SELECT instr($longstr,'zXa');} | |
| 187 } {106496} | |
| 188 set longstr [string map {a ä} $longstr] | |
| 189 do_test instr-1.50 { | |
| 190 db eval {SELECT instr($longstr,'X');} | |
| 191 } {106497} | |
| 192 do_test instr-1.51 { | |
| 193 db eval {SELECT instr($longstr,'Y');} | |
| 194 } {0} | |
| 195 do_test instr-1.52 { | |
| 196 db eval {SELECT instr($longstr,'Xä');} | |
| 197 } {106497} | |
| 198 do_test instr-1.53 { | |
| 199 db eval {SELECT instr($longstr,'zXä');} | |
| 200 } {106496} | |
| 201 do_test instr-1.54 { | |
| 202 db eval {SELECT instr(x'78c3a4e282ac79','x');} | |
| 203 } {1} | |
| 204 do_test instr-1.55 { | |
| 205 db eval {SELECT instr(x'78c3a4e282ac79','y');} | |
| 206 } {4} | |
| 207 | |
| 208 # EVIDENCE-OF: R-46421-32541 Or, if X and Y are both BLOBs, then | |
| 209 # instr(X,Y) returns one more than the number bytes prior to the first | |
| 210 # occurrence of Y, or 0 if Y does not occur anywhere within X. | |
| 211 # | |
| 212 do_test instr-1.56.1 { | |
| 213 db eval {SELECT instr(x'78c3a4e282ac79',x'79');} | |
| 214 } {7} | |
| 215 do_test instr-1.56.2 { | |
| 216 db eval {SELECT instr(x'78c3a4e282ac79',x'7a');} | |
| 217 } {0} | |
| 218 do_test instr-1.56.3 { | |
| 219 db eval {SELECT instr(x'78c3a4e282ac79',x'78');} | |
| 220 } {1} | |
| 221 do_test instr-1.56.3 { | |
| 222 db eval {SELECT instr(x'78c3a4e282ac79',x'a4');} | |
| 223 } {3} | |
| 224 | |
| 225 # EVIDENCE-OF: R-17329-35644 If both arguments X and Y to instr(X,Y) are | |
| 226 # non-NULL and are not BLOBs then both are interpreted as strings. | |
| 227 # | |
| 228 do_test instr-1.57.1 { | |
| 229 db eval {SELECT instr('xä€y',x'79');} | |
| 230 } {4} | |
| 231 do_test instr-1.57.2 { | |
| 232 db eval {SELECT instr('xä€y',x'a4');} | |
| 233 } {0} | |
| 234 do_test instr-1.57.3 { | |
| 235 db eval {SELECT instr(x'78c3a4e282ac79','y');} | |
| 236 } {4} | |
| 237 | |
| 238 # EVIDENCE-OF: R-14708-27487 If either X or Y are NULL in instr(X,Y) | |
| 239 # then the result is NULL. | |
| 240 # | |
| 241 do_execsql_test instr-1.60 { | |
| 242 SELECT coalesce(instr(NULL,'abc'), 999); | |
| 243 } {999} | |
| 244 do_execsql_test instr-1.61 { | |
| 245 SELECT coalesce(instr('abc',NULL), 999); | |
| 246 } {999} | |
| 247 do_execsql_test instr-1.62 { | |
| 248 SELECT coalesce(instr(NULL,NULL), 999); | |
| 249 } {999} | |
| 250 | |
| 251 finish_test | |
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