3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
10 #***********************************************************************
11 # This file implements regression tests for SQLite library. The
12 # focus of this script is the sqlite_interrupt() API.
14 # $Id: interrupt.test,v 1.16 2008/01/16 17:46:38 drh Exp $
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
19 set DB [sqlite3_connection_pointer db]
21 # This routine attempts to execute the sql in $sql. It triggers an
22 # interrupt at progressively later and later points during the processing
23 # and checks to make sure SQLITE_INTERRUPT is returned. Eventually,
24 # the routine completes successfully.
26 proc interrupt_test {testid sql result {initcnt 0}} {
31 set ::sqlite_interrupt_count $i
32 do_test $testid.$i.1 [format {
34 set ::code [db errorcode]
35 expr {$::code==0 || $::code==9}
38 do_test $testid.$i.2 {
42 do_test $testid.$i.99 {
48 set ::sqlite_interrupt_count 0
51 do_test interrupt-1.1 {
54 SELECT name FROM sqlite_master;
57 interrupt_test interrupt-1.2 {DROP TABLE t1} {}
58 do_test interrupt-1.3 {
60 SELECT name FROM sqlite_master;
63 integrity_check interrupt-1.4
65 do_test interrrupt-2.1 {
69 INSERT INTO t1 VALUES(1,randstr(300,400));
70 INSERT INTO t1 SELECT a+1, randstr(300,400) FROM t1;
71 INSERT INTO t1 SELECT a+2, a || '-' || b FROM t1;
72 INSERT INTO t1 SELECT a+4, a || '-' || b FROM t1;
73 INSERT INTO t1 SELECT a+8, a || '-' || b FROM t1;
74 INSERT INTO t1 SELECT a+16, a || '-' || b FROM t1;
75 INSERT INTO t1 SELECT a+32, a || '-' || b FROM t1;
77 UPDATE t1 SET b=substr(b,-5,5);
78 SELECT count(*) from t1;
81 set origsize [file size test.db]
82 set cksum [db eval {SELECT md5sum(a || b) FROM t1}]
84 interrupt_test interrupt-2.2 {VACUUM} {} 100
86 do_test interrupt-2.3 {
88 SELECT md5sum(a || b) FROM t1;
91 ifcapable {vacuum && !default_autovacuum} {
92 do_test interrupt-2.4 {
93 expr {$::origsize>[file size test.db]}
97 do_test interrupt-2.5 {
98 set sql {EXPLAIN SELECT max(a,b), a, b FROM t1}
100 set rc [catch {db eval $sql {sqlite3_interrupt $DB}} msg]
104 integrity_check interrupt-2.6
106 # Ticket #594. If an interrupt occurs in the middle of a transaction
107 # and that transaction is later rolled back, the internal schema tables do
110 # UPDATE: Interrupting a DML statement in the middle of a transaction now
111 # causes the transaction to roll back. Leaving the transaction open after
112 # an SQL statement was interrupted halfway through risks database corruption.
115 for {set i 1} {$i<50} {incr i 5} {
116 do_test interrupt-3.$i.1 {
119 CREATE TEMP TABLE t2(x,y);
120 SELECT name FROM sqlite_temp_master;
123 do_test interrupt-3.$i.2 {
124 set ::sqlite_interrupt_count $::i
126 INSERT INTO t2 SELECT * FROM t1;
129 do_test interrupt-3.$i.3 {
131 SELECT name FROM sqlite_temp_master;
134 do_test interrupt-3.$i.4 {
138 } {1 {cannot rollback - no transaction is active}}
139 do_test interrupt-3.$i.5 {
140 catchsql {SELECT name FROM sqlite_temp_master};
142 SELECT name FROM sqlite_temp_master;
148 # There are reports of a memory leak if an interrupt occurs during
149 # the beginning of a complex query - before the first callback. We
150 # will try to reproduce it here:
153 CREATE TABLE t2(a,b,c);
154 INSERT INTO t2 SELECT round(a/10), randstr(50,80), randstr(50,60) FROM t1;
157 SELECT max(min(b,c)), min(max(b,c)), a FROM t2 GROUP BY a ORDER BY a;
159 set sqlite_interrupt_count 1000000
161 set max_count [expr {1000000-$sqlite_interrupt_count}]
162 for {set i 1} {$i<$max_count-5} {incr i 1} {
163 do_test interrupt-4.$i.1 {
164 set ::sqlite_interrupt_count $::i
169 if {0} { # This doesn't work anymore since the collation factor is
170 # no longer called during schema parsing.
171 # Interrupt during parsing
173 do_test interrupt-5.1 {
174 proc fake_interrupt {args} {
175 db collate fake_collation no-op
179 db collation_needed fake_interrupt
181 CREATE INDEX fake ON fake1(a COLLATE fake_collation, b, c DESC);