393 lines
12 KiB
Plaintext
393 lines
12 KiB
Plaintext
# 2001 September 15
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file attempts to check the library in an out-of-memory situation.
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# When compiled with -DSQLITE_DEBUG=1, the SQLite library accepts a special
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# command (sqlite_malloc_fail N) which causes the N-th malloc to fail. This
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# special feature is used to see what happens in the library if a malloc
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# were to really fail due to an out-of-memory situation.
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#
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# $Id: malloc.test,v 1.14 2005/01/12 07:15:07 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Only run these tests if memory debugging is turned on.
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#
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if {[info command sqlite_malloc_stat]==""} {
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puts "Skipping malloc tests: not compiled with -DSQLITE_DEBUG..."
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finish_test
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return
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}
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-1.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite_malloc_fail $i [expr {$i%4}]
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set v [catch {sqlite3 db test.db} msg]
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if {$v} {
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set msg ""
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} else {
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set v [catch {execsql {
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CREATE TABLE t1(
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a int, b float, c double, d text, e varchar(20),
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primary key(a,b,c)
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);
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CREATE INDEX i1 ON t1(a,b);
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INSERT INTO t1 VALUES(1,2.3,4.5,'hi','there');
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INSERT INTO t1 VALUES(6,7.0,0.8,'hello','out yonder');
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SELECT * FROM t1;
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SELECT avg(b) FROM t1 GROUP BY a HAVING b>20.0;
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DELETE FROM t1 WHERE a IN (SELECT min(a) FROM t1);
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SELECT count(*) FROM t1;
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}} msg]
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}
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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# Ensure that no file descriptors were leaked.
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do_test malloc-1.X {
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catch {db close}
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set sqlite_open_file_count
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} {0}
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set fd [open ./data.tmp w]
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for {set i 1} {$i<=20} {incr i} {
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puts $fd "$i\t[expr {$i*$i}]\t[expr {100-$i}] abcdefghijklmnopqrstuvwxyz"
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}
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close $fd
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-2.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite_malloc_fail $i
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set v [catch {sqlite3 db test.db} msg]
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if {$v} {
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set msg ""
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} else {
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set v [catch {execsql {
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CREATE TABLE t1(a int, b int, c int);
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CREATE INDEX i1 ON t1(a,b);
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INSERT INTO t1 VALUES(1,1,'99 abcdefghijklmnopqrstuvwxyz');
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INSERT INTO t1 VALUES(2,4,'98 abcdefghijklmnopqrstuvwxyz');
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INSERT INTO t1 VALUES(3,9,'97 abcdefghijklmnopqrstuvwxyz');
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INSERT INTO t1 VALUES(4,16,'96 abcdefghijklmnopqrstuvwxyz');
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INSERT INTO t1 VALUES(5,25,'95 abcdefghijklmnopqrstuvwxyz');
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INSERT INTO t1 VALUES(6,36,'94 abcdefghijklmnopqrstuvwxyz');
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SELECT 'stuff', count(*) as 'other stuff', max(a+10) FROM t1;
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UPDATE t1 SET b=b||b||b||b;
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UPDATE t1 SET b=a WHERE a in (10,12,22);
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INSERT INTO t1(c,b,a) VALUES(20,10,5);
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INSERT INTO t1 SELECT * FROM t1
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WHERE a IN (SELECT a FROM t1 WHERE a<10);
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DELETE FROM t1 WHERE a>=10;
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DROP INDEX i1;
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DELETE FROM t1;
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}} msg]
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}
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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# Ensure that no file descriptors were leaked.
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do_test malloc-2.X {
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catch {db close}
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set sqlite_open_file_count
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} {0}
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-3.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite_malloc_fail $i
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set v [catch {sqlite3 db test.db} msg]
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if {$v} {
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set msg ""
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} else {
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set v [catch {execsql {
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BEGIN TRANSACTION;
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CREATE TABLE t1(a int, b int, c int);
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CREATE INDEX i1 ON t1(a,b);
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INSERT INTO t1 VALUES(1,1,99);
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INSERT INTO t1 VALUES(2,4,98);
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INSERT INTO t1 VALUES(3,9,97);
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INSERT INTO t1 VALUES(4,16,96);
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INSERT INTO t1 VALUES(5,25,95);
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INSERT INTO t1 VALUES(6,36,94);
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INSERT INTO t1(c,b,a) VALUES(20,10,5);
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DELETE FROM t1 WHERE a>=10;
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DROP INDEX i1;
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DELETE FROM t1;
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ROLLBACK;
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}} msg]
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}
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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# Ensure that no file descriptors were leaked.
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do_test malloc-3.X {
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catch {db close}
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set sqlite_open_file_count
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} {0}
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-4.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite_malloc_fail $i
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set v [catch {sqlite3 db test.db} msg]
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if {$v} {
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set msg ""
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} else {
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set v [catch {execsql {
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BEGIN TRANSACTION;
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CREATE TABLE t1(a int, b int, c int);
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CREATE INDEX i1 ON t1(a,b);
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INSERT INTO t1 VALUES(1,1,99);
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INSERT INTO t1 VALUES(2,4,98);
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INSERT INTO t1 VALUES(3,9,97);
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INSERT INTO t1 VALUES(4,16,96);
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INSERT INTO t1 VALUES(5,25,95);
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INSERT INTO t1 VALUES(6,36,94);
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UPDATE t1 SET b=a WHERE a in (10,12,22);
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INSERT INTO t1 SELECT * FROM t1
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WHERE a IN (SELECT a FROM t1 WHERE a<10);
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DROP INDEX i1;
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DELETE FROM t1;
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COMMIT;
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}} msg]
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}
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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# Ensure that no file descriptors were leaked.
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do_test malloc-4.X {
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catch {db close}
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set sqlite_open_file_count
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} {0}
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-5.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite_malloc_fail $i
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set v [catch {sqlite3 db test.db} msg]
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if {$v} {
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set msg ""
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} else {
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set v [catch {execsql {
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BEGIN TRANSACTION;
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CREATE TABLE t1(a,b);
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CREATE TABLE t2(x,y);
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CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
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INSERT INTO t2(x,y) VALUES(new.rowid,1);
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END;
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INSERT INTO t1(a,b) VALUES(2,3);
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COMMIT;
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}} msg]
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}
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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# Ensure that no file descriptors were leaked.
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do_test malloc-5.X {
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catch {db close}
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set sqlite_open_file_count
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} {0}
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-6.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite3 db test.db
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execsql {
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BEGIN TRANSACTION;
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CREATE TABLE t1(a);
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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INSERT INTO t1 SELECT a*2 FROM t1;
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DELETE FROM t1 where rowid%5 = 0;
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COMMIT;
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}
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sqlite_malloc_fail $i
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set v [catch {execsql {
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VACUUM;
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}} msg]
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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for {set go 1; set i 1} {$go} {incr i} {
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do_test malloc-7.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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sqlite3 db test.db
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execsql {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(3, 4);
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INSERT INTO t1 VALUES(5, 6);
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INSERT INTO t1 VALUES(7, randstr(1200,1200));
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}
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sqlite_malloc_fail $i
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set v [catch {execsql {
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SELECT min(a) FROM t1 WHERE a<6 GROUP BY b;
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SELECT a FROM t1 WHERE a<6 ORDER BY a;
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SELECT b FROM t1 WHERE a>6;
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}} msg]
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set leftover [lindex [sqlite_malloc_stat] 2]
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if {$leftover>0} {
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if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
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set ::go 0
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set v {1 1}
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} else {
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set v2 [expr {$msg=="" || $msg=="out of memory"}]
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if {!$v2} {puts "\nError message returned: $msg"}
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lappend v $v2
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}
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} {1 1}
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}
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# This block is designed to test that some malloc failures that may
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# occur in vdbeapi.c. Specifically, if a malloc failure that occurs
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# when converting UTF-16 text to integers and real numbers is handled
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# correctly.
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#
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# This doesn't actually return an error to the user. That could be
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# viewed as a bug.
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#
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for {set go 1; set i 1} {$go && $::sqlite_options(utf16)} {incr i} {
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do_test malloc-8.$i {
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sqlite_malloc_fail 0
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catch {db close}
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catch {file delete -force test.db}
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catch {file delete -force test.db-journal}
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set ::DB [sqlite3 db test.db]
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set sql "SELECT '[string repeat abc 20]', '[string repeat def 20]', ?"
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set ::STMT [sqlite3_prepare $::DB $sql -1 X]
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sqlite3_step $::STMT
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if { $::tcl_platform(byteOrder)=="littleEndian" } {
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set ::bomstr "\xFF\xFE"
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} else {
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set ::bomstr "\xFE\xFF"
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}
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append ::bomstr [encoding convertto unicode "123456789_123456789_12345678"]
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sqlite_malloc_fail $i
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catch {
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sqlite3_column_text16 $::STMT 0
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sqlite3_column_int $::STMT 0
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sqlite3_column_text16 $::STMT 1
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sqlite3_column_double $::STMT 1
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sqlite3_reset $::STMT
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sqlite3_bind_text16 $::STMT 1 $::bomstr 60
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} msg
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sqlite3_finalize $::STMT
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if {[lindex [sqlite_malloc_stat] 2]>0} {
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set ::go 0
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}
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expr 0
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} {0}
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}
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# Ensure that no file descriptors were leaked.
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do_test malloc-99.X {
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catch {db close}
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set sqlite_open_file_count
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} {0}
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sqlite_malloc_fail 0
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finish_test
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