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 96
