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1 office 1 # 2002 May 10
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.
12 #
13 # This file implements tests for the SQLITE_MISUSE detection logic.
14 # This test file leaks memory and file descriptors.
15 #
16 # $Id: misuse.test,v 1.11 2006/01/03 00:33:50 drh Exp $
17  
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
20  
21 proc catchsql2 {sql} {
22 set r [
23 catch {
24 set res [list]
25 db eval $sql data {
26 if { $res==[list] } {
27 foreach f $data(*) {lappend res $f}
28 }
29 foreach f $data(*) {lappend res $data($f)}
30 }
31 set res
32 } msg
33 ]
34 lappend r $msg
35 }
36  
37  
38 # Make sure the test logic works
39 #
40 do_test misuse-1.1 {
41 db close
42 catch {file delete -force test2.db}
43 catch {file delete -force test2.db-journal}
44 sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
45 execsql {
46 CREATE TABLE t1(a,b);
47 INSERT INTO t1 VALUES(1,2);
48 }
49 catchsql2 {
50 SELECT * FROM t1
51 }
52 } {0 {a b 1 2}}
53 do_test misuse-1.2 {
54 catchsql2 {
55 SELECT x_coalesce(NULL,a) AS 'xyz' FROM t1
56 }
57 } {1 {no such function: x_coalesce}}
58 do_test misuse-1.3 {
59 sqlite3_create_function $::DB
60 catchsql2 {
61 SELECT x_coalesce(NULL,a) AS 'xyz' FROM t1
62 }
63 } {0 {xyz 1}}
64  
65 # Use the x_sqlite_exec() SQL function to simulate the effect of two
66 # threads trying to use the same database at the same time.
67 #
68 # It used to be prohibited to invoke sqlite_exec() from within a function,
69 # but that has changed. The following tests used to cause errors but now
70 # they do not.
71 #
72 ifcapable {utf16} {
73 do_test misuse-1.4 {
74 catchsql2 {
75 SELECT x_sqlite_exec('SELECT * FROM t1') AS xyz;
76 }
77 } {0 {xyz {1 2}}}
78 }
79 do_test misuse-1.5 {
80 catchsql2 {SELECT * FROM t1}
81 } {0 {a b 1 2}}
82 do_test misuse-1.6 {
83 catchsql {
84 SELECT * FROM t1
85 }
86 } {0 {1 2}}
87  
88 # Attempt to register a new SQL function while an sqlite_exec() is active.
89 #
90 do_test misuse-2.1 {
91 db close
92 sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
93 execsql {
94 SELECT * FROM t1
95 }
96 } {1 2}
97 do_test misuse-2.2 {
98 catchsql2 {SELECT * FROM t1}
99 } {0 {a b 1 2}}
100  
101 # We used to disallow creating new function from within an exec().
102 # But now this is acceptable.
103 do_test misuse-2.3 {
104 set v [catch {
105 db eval {SELECT * FROM t1} {} {
106 sqlite3_create_function $::DB
107 }
108 } msg]
109 lappend v $msg
110 } {0 {}}
111 do_test misuse-2.4 {
112 catchsql2 {SELECT * FROM t1}
113 } {0 {a b 1 2}}
114 do_test misuse-2.5 {
115 catchsql {
116 SELECT * FROM t1
117 }
118 } {0 {1 2}}
119  
120 # Attempt to register a new SQL aggregate while an sqlite_exec() is active.
121 #
122 do_test misuse-3.1 {
123 db close
124 sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
125 execsql {
126 SELECT * FROM t1
127 }
128 } {1 2}
129 do_test misuse-3.2 {
130 catchsql2 {SELECT * FROM t1}
131 } {0 {a b 1 2}}
132  
133 # We used to disallow creating new function from within an exec().
134 # But now this is acceptable.
135 do_test misuse-3.3 {
136 set v [catch {
137 db eval {SELECT * FROM t1} {} {
138 sqlite3_create_aggregate $::DB
139 }
140 } msg]
141 lappend v $msg
142 } {0 {}}
143 do_test misuse-3.4 {
144 catchsql2 {SELECT * FROM t1}
145 } {0 {a b 1 2}}
146 do_test misuse-3.5 {
147 catchsql {
148 SELECT * FROM t1
149 }
150 } {0 {1 2}}
151  
152 # Attempt to close the database from an sqlite_exec callback.
153 #
154 # Update for v3: The db cannot be closed because there are active
155 # VMs. The sqlite3_close call would return SQLITE_BUSY.
156 do_test misuse-4.1 {
157 db close
158 sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
159 execsql {
160 SELECT * FROM t1
161 }
162 } {1 2}
163 do_test misuse-4.2 {
164 catchsql2 {SELECT * FROM t1}
165 } {0 {a b 1 2}}
166 do_test misuse-4.3 {
167 set v [catch {
168 db eval {SELECT * FROM t1} {} {
169 set r [sqlite3_close $::DB]
170 }
171 } msg]
172 lappend v $msg $r
173 } {0 {} SQLITE_BUSY}
174 do_test misuse-4.4 {
175 # Flush the TCL statement cache here, otherwise the sqlite3_close() will
176 # fail because there are still un-finalized() VDBEs.
177 db cache flush
178 sqlite3_close $::DB
179 catchsql2 {SELECT * FROM t1}
180 } {1 {library routine called out of sequence}}
181 do_test misuse-4.5 {
182 catchsql {
183 SELECT * FROM t1
184 }
185 } {1 {library routine called out of sequence}}
186  
187 # Attempt to use a database after it has been closed.
188 #
189 do_test misuse-5.1 {
190 db close
191 sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
192 execsql {
193 SELECT * FROM t1
194 }
195 } {1 2}
196 do_test misuse-5.2 {
197 catchsql2 {SELECT * FROM t1}
198 } {0 {a b 1 2}}
199 do_test misuse-5.3 {
200 db close
201 set r [catch {
202 sqlite3_prepare $::DB {SELECT * FROM t1} -1 TAIL
203 } msg]
204 lappend r $msg
205 } {1 {(21) library routine called out of sequence}}
206  
207 finish_test