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Annotation of embedaddon/sqlite3/test/malloc8.test, revision 1.1.1.1

1.1       misho       1: # 2007 April 25
                      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 contains additional out-of-memory checks (see malloc.tcl)
                     12: # added to expose a bug in out-of-memory handling for sqlite3_value_text()
                     13: #
                     14: # $Id: malloc8.test,v 1.7 2008/02/18 22:24:58 drh Exp $
                     15: 
                     16: set testdir [file dirname $argv0]
                     17: source $testdir/tester.tcl
                     18: source $testdir/malloc_common.tcl
                     19: 
                     20: # Only run these tests if memory debugging is turned on.
                     21: #
                     22: if {!$MEMDEBUG} {
                     23:    puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..."
                     24:    finish_test
                     25:    return
                     26: }
                     27: 
                     28: 
                     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.
                     35: #
                     36: 
                     37: do_malloc_test malloc8-1 -sqlprep {
                     38:   PRAGMA encoding='UTF-16';
                     39:   CREATE TABLE t1(a);
                     40:   INSERT INTO t1 
                     41:   VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
                     42: } -sqlbody {
                     43:   SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1;
                     44: }
                     45: do_malloc_test malloc8-2 -sqlprep {
                     46:   PRAGMA encoding='UTF-16';
                     47:   CREATE TABLE t1(a);
                     48:   INSERT INTO t1 
                     49:   VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
                     50: } -sqlbody {
                     51:   SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a)
                     52:     FROM t1;
                     53: }
                     54: do_malloc_test malloc8-3 -sqlprep {
                     55:   PRAGMA encoding='UTF-16';
                     56:   CREATE TABLE t1(a);
                     57:   INSERT INTO t1 
                     58:   VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
                     59: } -sqlbody {
                     60:   SELECT length(a), substr(a, 4, 4) FROM t1;
                     61: }
                     62: ifcapable datetime {
                     63:   do_malloc_test malloc8-4 -sqlprep {
                     64:     PRAGMA encoding='UTF-16';
                     65:     CREATE TABLE t1(a);
                     66:     INSERT INTO t1 
                     67:     VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
                     68:   } -sqlbody {
                     69:     SELECT julianday(a,a) FROM t1;
                     70:   }
                     71: }
                     72: do_malloc_test malloc8-5 -sqlprep {
                     73:   PRAGMA encoding='UTF-16';
                     74:   CREATE TABLE t1(a);
                     75:   INSERT INTO t1 
                     76:   VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
                     77: } -sqlbody {
                     78:   SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL;
                     79: }
                     80: do_malloc_test malloc8-6 -sqlprep {
                     81:   PRAGMA encoding='UTF-16';
                     82:   CREATE TABLE t1(a);
                     83:   INSERT INTO t1 
                     84:   VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
                     85: } -sqlbody {
                     86:   SELECT hex(randomblob(100));
                     87: }
                     88: 
                     89: # Ensure that no file descriptors were leaked.
                     90: do_test malloc-99.X {
                     91:   catch {db close}
                     92:   set sqlite_open_file_count
                     93: } {0}
                     94: 
                     95: finish_test