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 contains additional out-of-memory checks (see malloc.tcl)
12 # added to expose a bug in out-of-memory handling for sqlite3_value_text()
14 # $Id: malloc8.test,v 1.7 2008/02/18 22:24:58 drh Exp $
16 set testdir [file dirname $argv0]
17 source $testdir/tester.tcl
18 source $testdir/malloc_common.tcl
20 # Only run these tests if memory debugging is turned on.
23 puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..."
29 # The setup is a database with UTF-16 encoding that contains a single
30 # large string. We will be running lots of queries against this
31 # database. Because we will be extracting the string as UTF-8, there
32 # is a type conversion that occurs and thus an opportunity for malloc()
33 # to fail and for sqlite3_value_text() to return 0 even though
34 # sqlite3_value_type() returns SQLITE_TEXT.
37 do_malloc_test malloc8-1 -sqlprep {
38 PRAGMA encoding='UTF-16';
41 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
43 SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1;
45 do_malloc_test malloc8-2 -sqlprep {
46 PRAGMA encoding='UTF-16';
49 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
51 SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a)
54 do_malloc_test malloc8-3 -sqlprep {
55 PRAGMA encoding='UTF-16';
58 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
60 SELECT length(a), substr(a, 4, 4) FROM t1;
63 do_malloc_test malloc8-4 -sqlprep {
64 PRAGMA encoding='UTF-16';
67 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
69 SELECT julianday(a,a) FROM t1;
72 do_malloc_test malloc8-5 -sqlprep {
73 PRAGMA encoding='UTF-16';
76 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
78 SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL;
80 do_malloc_test malloc8-6 -sqlprep {
81 PRAGMA encoding='UTF-16';
84 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
86 SELECT hex(randomblob(100));
89 # Ensure that no file descriptors were leaked.
92 set sqlite_open_file_count