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| 1 # 2007 June 8 |
| 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 NULL comparisons in the WHERE clause. |
| 13 # See ticket #2404. |
| 14 # |
| 15 # $Id: where5.test,v 1.2 2007/06/08 08:43:10 drh Exp $ |
| 16 |
| 17 set testdir [file dirname $argv0] |
| 18 source $testdir/tester.tcl |
| 19 |
| 20 # Build some test data |
| 21 # |
| 22 do_test where5-1.0 { |
| 23 execsql { |
| 24 CREATE TABLE t1(x TEXT); |
| 25 CREATE TABLE t2(x INTEGER); |
| 26 CREATE TABLE t3(x INTEGER PRIMARY KEY); |
| 27 INSERT INTO t1 VALUES(-1); |
| 28 INSERT INTO t1 VALUES(0); |
| 29 INSERT INTO t1 VALUES(1); |
| 30 INSERT INTO t2 SELECT * FROM t1; |
| 31 INSERT INTO t3 SELECT * FROM t2; |
| 32 } |
| 33 execsql { |
| 34 SELECT * FROM t1 WHERE x<0 |
| 35 } |
| 36 } {-1} |
| 37 do_test where5-1.1 { |
| 38 execsql { |
| 39 SELECT * FROM t1 WHERE x<=0 |
| 40 } |
| 41 } {-1 0} |
| 42 do_test where5-1.2 { |
| 43 execsql { |
| 44 SELECT * FROM t1 WHERE x=0 |
| 45 } |
| 46 } {0} |
| 47 do_test where5-1.3 { |
| 48 execsql { |
| 49 SELECT * FROM t1 WHERE x>=0 |
| 50 } |
| 51 } {0 1} |
| 52 do_test where5-1.4 { |
| 53 execsql { |
| 54 SELECT * FROM t1 WHERE x>0 |
| 55 } |
| 56 } {1} |
| 57 do_test where5-1.5 { |
| 58 execsql { |
| 59 SELECT * FROM t1 WHERE x<>0 |
| 60 } |
| 61 } {-1 1} |
| 62 do_test where5-1.6 { |
| 63 execsql { |
| 64 SELECT * FROM t1 WHERE x<NULL |
| 65 } |
| 66 } {} |
| 67 do_test where5-1.7 { |
| 68 execsql { |
| 69 SELECT * FROM t1 WHERE x<=NULL |
| 70 } |
| 71 } {} |
| 72 do_test where5-1.8 { |
| 73 execsql { |
| 74 SELECT * FROM t1 WHERE x=NULL |
| 75 } |
| 76 } {} |
| 77 do_test where5-1.9 { |
| 78 execsql { |
| 79 SELECT * FROM t1 WHERE x>=NULL |
| 80 } |
| 81 } {} |
| 82 do_test where5-1.10 { |
| 83 execsql { |
| 84 SELECT * FROM t1 WHERE x>NULL |
| 85 } |
| 86 } {} |
| 87 do_test where5-1.11 { |
| 88 execsql { |
| 89 SELECT * FROM t1 WHERE x!=NULL |
| 90 } |
| 91 } {} |
| 92 do_test where5-1.12 { |
| 93 execsql { |
| 94 SELECT * FROM t1 WHERE x IS NULL |
| 95 } |
| 96 } {} |
| 97 do_test where5-1.13 { |
| 98 execsql { |
| 99 SELECT * FROM t1 WHERE x IS NOT NULL |
| 100 } |
| 101 } {-1 0 1} |
| 102 |
| 103 |
| 104 do_test where5-2.0 { |
| 105 execsql { |
| 106 SELECT * FROM t2 WHERE x<0 |
| 107 } |
| 108 } {-1} |
| 109 do_test where5-2.1 { |
| 110 execsql { |
| 111 SELECT * FROM t2 WHERE x<=0 |
| 112 } |
| 113 } {-1 0} |
| 114 do_test where5-2.2 { |
| 115 execsql { |
| 116 SELECT * FROM t2 WHERE x=0 |
| 117 } |
| 118 } {0} |
| 119 do_test where5-2.3 { |
| 120 execsql { |
| 121 SELECT * FROM t2 WHERE x>=0 |
| 122 } |
| 123 } {0 1} |
| 124 do_test where5-2.4 { |
| 125 execsql { |
| 126 SELECT * FROM t2 WHERE x>0 |
| 127 } |
| 128 } {1} |
| 129 do_test where5-2.5 { |
| 130 execsql { |
| 131 SELECT * FROM t2 WHERE x<>0 |
| 132 } |
| 133 } {-1 1} |
| 134 do_test where5-2.6 { |
| 135 execsql { |
| 136 SELECT * FROM t2 WHERE x<NULL |
| 137 } |
| 138 } {} |
| 139 do_test where5-2.7 { |
| 140 execsql { |
| 141 SELECT * FROM t2 WHERE x<=NULL |
| 142 } |
| 143 } {} |
| 144 do_test where5-2.8 { |
| 145 execsql { |
| 146 SELECT * FROM t2 WHERE x=NULL |
| 147 } |
| 148 } {} |
| 149 do_test where5-2.9 { |
| 150 execsql { |
| 151 SELECT * FROM t2 WHERE x>=NULL |
| 152 } |
| 153 } {} |
| 154 do_test where5-2.10 { |
| 155 execsql { |
| 156 SELECT * FROM t2 WHERE x>NULL |
| 157 } |
| 158 } {} |
| 159 do_test where5-2.11 { |
| 160 execsql { |
| 161 SELECT * FROM t2 WHERE x!=NULL |
| 162 } |
| 163 } {} |
| 164 do_test where5-2.12 { |
| 165 execsql { |
| 166 SELECT * FROM t2 WHERE x IS NULL |
| 167 } |
| 168 } {} |
| 169 do_test where5-2.13 { |
| 170 execsql { |
| 171 SELECT * FROM t2 WHERE x IS NOT NULL |
| 172 } |
| 173 } {-1 0 1} |
| 174 |
| 175 |
| 176 do_test where5-3.0 { |
| 177 execsql { |
| 178 SELECT * FROM t3 WHERE x<0 |
| 179 } |
| 180 } {-1} |
| 181 do_test where5-3.1 { |
| 182 execsql { |
| 183 SELECT * FROM t3 WHERE x<=0 |
| 184 } |
| 185 } {-1 0} |
| 186 do_test where5-3.2 { |
| 187 execsql { |
| 188 SELECT * FROM t3 WHERE x=0 |
| 189 } |
| 190 } {0} |
| 191 do_test where5-3.3 { |
| 192 execsql { |
| 193 SELECT * FROM t3 WHERE x>=0 |
| 194 } |
| 195 } {0 1} |
| 196 do_test where5-3.4 { |
| 197 execsql { |
| 198 SELECT * FROM t3 WHERE x>0 |
| 199 } |
| 200 } {1} |
| 201 do_test where5-3.5 { |
| 202 execsql { |
| 203 SELECT * FROM t3 WHERE x<>0 |
| 204 } |
| 205 } {-1 1} |
| 206 do_test where5-3.6 { |
| 207 execsql { |
| 208 SELECT * FROM t3 WHERE x<NULL |
| 209 } |
| 210 } {} |
| 211 do_test where5-3.7 { |
| 212 execsql { |
| 213 SELECT * FROM t3 WHERE x<=NULL |
| 214 } |
| 215 } {} |
| 216 do_test where5-3.8 { |
| 217 execsql { |
| 218 SELECT * FROM t3 WHERE x=NULL |
| 219 } |
| 220 } {} |
| 221 do_test where5-3.9 { |
| 222 execsql { |
| 223 SELECT * FROM t3 WHERE x>=NULL |
| 224 } |
| 225 } {} |
| 226 do_test where5-3.10 { |
| 227 execsql { |
| 228 SELECT * FROM t3 WHERE x>NULL |
| 229 } |
| 230 } {} |
| 231 do_test where5-3.11 { |
| 232 execsql { |
| 233 SELECT * FROM t3 WHERE x!=NULL |
| 234 } |
| 235 } {} |
| 236 do_test where5-3.12 { |
| 237 execsql { |
| 238 SELECT * FROM t3 WHERE x IS NULL |
| 239 } |
| 240 } {} |
| 241 do_test where5-3.13 { |
| 242 execsql { |
| 243 SELECT * FROM t3 WHERE x IS NOT NULL |
| 244 } |
| 245 } {-1 0 1} |
| 246 |
| 247 do_test where5-4.0 { |
| 248 execsql { |
| 249 SELECT x<NULL FROM t3 |
| 250 } |
| 251 } {{} {} {}} |
| 252 do_test where5-4.1 { |
| 253 execsql { |
| 254 SELECT x<=NULL FROM t3 |
| 255 } |
| 256 } {{} {} {}} |
| 257 do_test where5-4.2 { |
| 258 execsql { |
| 259 SELECT x==NULL FROM t3 |
| 260 } |
| 261 } {{} {} {}} |
| 262 do_test where5-4.3 { |
| 263 execsql { |
| 264 SELECT x>NULL FROM t3 |
| 265 } |
| 266 } {{} {} {}} |
| 267 do_test where5-4.4 { |
| 268 execsql { |
| 269 SELECT x>=NULL FROM t3 |
| 270 } |
| 271 } {{} {} {}} |
| 272 do_test where5-4.5 { |
| 273 execsql { |
| 274 SELECT x!=NULL FROM t3 |
| 275 } |
| 276 } {{} {} {}} |
| 277 do_test where5-4.6 { |
| 278 execsql { |
| 279 SELECT x IS NULL FROM t3 |
| 280 } |
| 281 } {0 0 0} |
| 282 do_test where5-4.7 { |
| 283 execsql { |
| 284 SELECT x IS NOT NULL FROM t3 |
| 285 } |
| 286 } {1 1 1} |
| 287 |
| 288 finish_test |
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