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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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