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| 1 # 2007 May 02 | |
| 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 of the zero-filled blob functionality | |
| 13 # including the sqlite3_bind_zeroblob(), sqlite3_result_zeroblob(), | |
| 14 # and the built-in zeroblob() SQL function. | |
| 15 # | |
| 16 # $Id: zeroblob.test,v 1.14 2009/07/14 02:33:02 drh Exp $ | |
| 17 | |
| 18 set testdir [file dirname $argv0] | |
| 19 source $testdir/tester.tcl | |
| 20 set testprefix zeroblob | |
| 21 | |
| 22 ifcapable !incrblob { | |
| 23 finish_test | |
| 24 return | |
| 25 } | |
| 26 | |
| 27 test_set_config_pagecache 0 0 | |
| 28 | |
| 29 # When zeroblob() is used for the last field of a column, then the | |
| 30 # content of the zeroblob is never instantiated on the VDBE stack. | |
| 31 # But it does get inserted into the database correctly. | |
| 32 # | |
| 33 db eval {PRAGMA cache_size=10} | |
| 34 sqlite3_memory_highwater 1 | |
| 35 unset -nocomplain memused | |
| 36 set memused [sqlite3_memory_used] | |
| 37 do_test zeroblob-1.1 { | |
| 38 execsql { | |
| 39 CREATE TABLE t1(a,b,c,d); | |
| 40 } | |
| 41 set ::sqlite3_max_blobsize 0 | |
| 42 execsql { | |
| 43 INSERT INTO t1 VALUES(2,3,4,zeroblob(1000000)); | |
| 44 } | |
| 45 set ::sqlite3_max_blobsize | |
| 46 } {10} | |
| 47 | |
| 48 do_test zeroblob-1.1.1 { | |
| 49 expr {[sqlite3_memory_highwater]<$::memused+35000} | |
| 50 } {1} | |
| 51 do_test zeroblob-1.2 { | |
| 52 execsql { | |
| 53 SELECT length(d) FROM t1 | |
| 54 } | |
| 55 } {1000000} | |
| 56 | |
| 57 # If a non-NULL column follows the zeroblob, then the content of | |
| 58 # the zeroblob must be instantiated. | |
| 59 # | |
| 60 do_test zeroblob-1.3 { | |
| 61 set ::sqlite3_max_blobsize 0 | |
| 62 execsql { | |
| 63 INSERT INTO t1 VALUES(3,4,zeroblob(10000),5); | |
| 64 } | |
| 65 set ::sqlite3_max_blobsize | |
| 66 } {10010} | |
| 67 do_test zeroblob-1.4 { | |
| 68 execsql { | |
| 69 SELECT length(c), length(d) FROM t1 | |
| 70 } | |
| 71 } {1 1000000 10000 1} | |
| 72 | |
| 73 # Multiple zeroblobs can appear at the end of record. No instantiation | |
| 74 # of the blob content occurs on the stack. | |
| 75 # | |
| 76 do_test zeroblob-1.5 { | |
| 77 set ::sqlite3_max_blobsize 0 | |
| 78 execsql { | |
| 79 INSERT INTO t1 VALUES(4,5,zeroblob(10000),zeroblob(10000)); | |
| 80 } | |
| 81 set ::sqlite3_max_blobsize | |
| 82 } {11} | |
| 83 do_test zeroblob-1.6 { | |
| 84 execsql { | |
| 85 SELECT length(c), length(d) FROM t1 | |
| 86 } | |
| 87 } {1 1000000 10000 1 10000 10000} | |
| 88 | |
| 89 # NULLs can follow the zeroblob() or be intermixed with zeroblobs and | |
| 90 # no instantiation of the zeroblobs occurs on the stack. | |
| 91 # | |
| 92 do_test zeroblob-1.7 { | |
| 93 set ::sqlite3_max_blobsize 0 | |
| 94 execsql { | |
| 95 INSERT INTO t1 VALUES(5,zeroblob(10000),NULL,zeroblob(10000)); | |
| 96 } | |
| 97 set ::sqlite3_max_blobsize | |
| 98 } {10} | |
| 99 do_test zeroblob-1.8 { | |
| 100 execsql { | |
| 101 SELECT length(b), length(d) FROM t1 WHERE a=5 | |
| 102 } | |
| 103 } {10000 10000} | |
| 104 | |
| 105 # Comparisons against zeroblobs work. | |
| 106 # | |
| 107 do_test zeroblob-2.1 { | |
| 108 execsql { | |
| 109 SELECT a FROM t1 WHERE b=zeroblob(10000) | |
| 110 } | |
| 111 } {5} | |
| 112 | |
| 113 # Comparisons against zeroblobs work even when indexed. | |
| 114 # | |
| 115 do_test zeroblob-2.2 { | |
| 116 execsql { | |
| 117 CREATE INDEX i1_1 ON t1(b); | |
| 118 SELECT a FROM t1 WHERE b=zeroblob(10000); | |
| 119 } | |
| 120 } {5} | |
| 121 | |
| 122 # DISTINCT works for zeroblobs | |
| 123 # | |
| 124 ifcapable bloblit&&subquery&&compound { | |
| 125 do_test zeroblob-3.1 { | |
| 126 execsql { | |
| 127 SELECT count(DISTINCT a) FROM ( | |
| 128 SELECT x'00000000000000000000' AS a | |
| 129 UNION ALL | |
| 130 SELECT zeroblob(10) AS a | |
| 131 ) | |
| 132 } | |
| 133 } {1} | |
| 134 } | |
| 135 | |
| 136 # Concatentation works with zeroblob | |
| 137 # | |
| 138 ifcapable bloblit { | |
| 139 do_test zeroblob-4.1 { | |
| 140 execsql { | |
| 141 SELECT hex(zeroblob(2) || x'61') | |
| 142 } | |
| 143 } {000061} | |
| 144 } | |
| 145 | |
| 146 # Check various CAST(...) operations on zeroblob. | |
| 147 # | |
| 148 do_test zeroblob-5.1 { | |
| 149 execsql { | |
| 150 SELECT CAST (zeroblob(100) AS REAL); | |
| 151 } | |
| 152 } {0.0} | |
| 153 do_test zeroblob-5.2 { | |
| 154 execsql { | |
| 155 SELECT CAST (zeroblob(100) AS INTEGER); | |
| 156 } | |
| 157 } {0} | |
| 158 do_test zeroblob-5.3 { | |
| 159 execsql { | |
| 160 SELECT CAST (zeroblob(100) AS TEXT); | |
| 161 } | |
| 162 } {{}} | |
| 163 do_test zeroblob-5.4 { | |
| 164 execsql { | |
| 165 SELECT CAST(zeroblob(100) AS BLOB); | |
| 166 } | |
| 167 } [execsql {SELECT zeroblob(100)}] | |
| 168 | |
| 169 | |
| 170 # Check for malicious use of zeroblob. Make sure nothing crashes. | |
| 171 # | |
| 172 do_test zeroblob-6.1.1 { | |
| 173 execsql {select zeroblob(-1)} | |
| 174 } {{}} | |
| 175 do_test zeroblob-6.1.2 { | |
| 176 execsql {select zeroblob(-10)} | |
| 177 } {{}} | |
| 178 do_test zeroblob-6.1.3 { | |
| 179 execsql {select zeroblob(-100)} | |
| 180 } {{}} | |
| 181 do_test zeroblob-6.2 { | |
| 182 execsql {select length(zeroblob(-1))} | |
| 183 } {0} | |
| 184 do_test zeroblob-6.3 { | |
| 185 execsql {select zeroblob(-1)|1} | |
| 186 } {1} | |
| 187 do_test zeroblob-6.4 { | |
| 188 catchsql {select length(zeroblob(2147483648))} | |
| 189 } {1 {string or blob too big}} | |
| 190 do_test zeroblob-6.5 { | |
| 191 catchsql {select zeroblob(2147483648)} | |
| 192 } {1 {string or blob too big}} | |
| 193 do_test zeroblob-6.6 { | |
| 194 execsql {select hex(zeroblob(-1))} | |
| 195 } {{}} | |
| 196 do_test zeroblob-6.7 { | |
| 197 execsql {select typeof(zeroblob(-1))} | |
| 198 } {blob} | |
| 199 | |
| 200 # Test bind_zeroblob() | |
| 201 # | |
| 202 sqlite3_memory_highwater 1 | |
| 203 unset -nocomplain memused | |
| 204 set memused [sqlite3_memory_used] | |
| 205 do_test zeroblob-7.1 { | |
| 206 set ::STMT [sqlite3_prepare $::DB "SELECT length(?)" -1 DUMMY] | |
| 207 set ::sqlite3_max_blobsize 0 | |
| 208 sqlite3_bind_zeroblob $::STMT 1 450000 | |
| 209 sqlite3_step $::STMT | |
| 210 } {SQLITE_ROW} | |
| 211 do_test zeroblob-7.2 { | |
| 212 sqlite3_column_int $::STMT 0 | |
| 213 } {450000} | |
| 214 do_test zeroblob-7.3 { | |
| 215 sqlite3_finalize $::STMT | |
| 216 } {SQLITE_OK} | |
| 217 do_test zeroblob-7.4 { | |
| 218 set ::sqlite3_max_blobsize | |
| 219 } {0} | |
| 220 do_test zeroblob-7.5 { | |
| 221 expr {[sqlite3_memory_highwater]<$::memused+10000} | |
| 222 } {1} | |
| 223 | |
| 224 # Test that MakeRecord can handle a value with some real content | |
| 225 # and a zero-blob tail. | |
| 226 # | |
| 227 do_test zeroblob-8.1 { | |
| 228 llength [execsql { | |
| 229 SELECT 'hello' AS a, zeroblob(10) as b from t1 ORDER BY a, b; | |
| 230 }] | |
| 231 } {8} | |
| 232 | |
| 233 | |
| 234 # Ticket #3965 | |
| 235 # zeroblobs on either size of an IN operator | |
| 236 # | |
| 237 do_test zeroblob-9.1 { | |
| 238 db eval {SELECT x'0000' IN (x'000000')} | |
| 239 } {0} | |
| 240 do_test zeroblob-9.2 { | |
| 241 db eval {SELECT x'0000' IN (x'0000')} | |
| 242 } {1} | |
| 243 do_test zeroblob-9.3 { | |
| 244 db eval {SELECT zeroblob(2) IN (x'000000')} | |
| 245 } {0} | |
| 246 do_test zeroblob-9.4 { | |
| 247 db eval {SELECT zeroblob(2) IN (x'0000')} | |
| 248 } {1} | |
| 249 do_test zeroblob-9.5 { | |
| 250 db eval {SELECT x'0000' IN (zeroblob(3))} | |
| 251 } {0} | |
| 252 do_test zeroblob-9.6 { | |
| 253 db eval {SELECT x'0000' IN (zeroblob(2))} | |
| 254 } {1} | |
| 255 do_test zeroblob-9.7 { | |
| 256 db eval {SELECT zeroblob(2) IN (zeroblob(3))} | |
| 257 } {0} | |
| 258 do_test zeroblob-9.8 { | |
| 259 db eval {SELECT zeroblob(2) IN (zeroblob(2))} | |
| 260 } {1} | |
| 261 | |
| 262 # Oversized zeroblob records | |
| 263 # | |
| 264 do_test zeroblob-10.1 { | |
| 265 db eval { | |
| 266 CREATE TABLE t10(a,b,c); | |
| 267 } | |
| 268 catchsql {INSERT INTO t10 VALUES(zeroblob(1e9),zeroblob(1e9),zeroblob(1e9))} | |
| 269 } {1 {string or blob too big}} | |
| 270 | |
| 271 #------------------------------------------------------------------------- | |
| 272 # Test the zeroblob() function on its own with negative or oversized | |
| 273 # arguments. | |
| 274 # | |
| 275 do_execsql_test 11.0 { | |
| 276 SELECT length(zeroblob(-1444444444444444)); | |
| 277 } {0} | |
| 278 do_catchsql_test 11.1 { | |
| 279 SELECT zeroblob(5000 * 1024 * 1024); | |
| 280 } {1 {string or blob too big}} | |
| 281 do_catchsql_test 11.2 { | |
| 282 SELECT quote(zeroblob(5000 * 1024 * 1024)); | |
| 283 } {1 {string or blob too big}} | |
| 284 do_catchsql_test 11.3 { | |
| 285 SELECT quote(zeroblob(-1444444444444444)); | |
| 286 } {0 X''} | |
| 287 do_catchsql_test 11.4 { | |
| 288 SELECT quote(test_zeroblob(-1)); | |
| 289 } {0 X''} | |
| 290 | |
| 291 #------------------------------------------------------------------------- | |
| 292 # Test the sqlite3_bind_zeroblob64() API. | |
| 293 # | |
| 294 proc bind_and_run {stmt nZero} { | |
| 295 sqlite3_bind_zeroblob64 $stmt 1 $nZero | |
| 296 sqlite3_step $stmt | |
| 297 set ret [sqlite3_column_int $stmt 0] | |
| 298 sqlite3_reset $stmt | |
| 299 set ret | |
| 300 } | |
| 301 set stmt [sqlite3_prepare db "SELECT length(?)" -1 dummy] | |
| 302 | |
| 303 do_test 12.1 { bind_and_run $stmt 40 } 40 | |
| 304 do_test 12.2 { bind_and_run $stmt 0 } 0 | |
| 305 do_test 12.3 { bind_and_run $stmt 1000 } 1000 | |
| 306 | |
| 307 do_test 12.4 { | |
| 308 list [catch { bind_and_run $stmt [expr 5000 * 1024 * 1024] } msg] $msg | |
| 309 } {1 SQLITE_TOOBIG} | |
| 310 do_test 12.5 { | |
| 311 sqlite3_step $stmt | |
| 312 set ret [sqlite3_column_int $stmt 0] | |
| 313 sqlite3_reset $stmt | |
| 314 set ret | |
| 315 } {1000} | |
| 316 | |
| 317 sqlite3_finalize $stmt | |
| 318 | |
| 319 test_restore_config_pagecache | |
| 320 finish_test | |
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