# 2007 April 25 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file contains additional out-of-memory checks (see malloc.tcl) # added to expose a bug in out-of-memory handling for sqlite3_value_text() # # $Id: malloc8.test,v 1.6 2007/09/12 17:01:45 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Only run these tests if memory debugging is turned on. # ifcapable !memdebug { puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..." finish_test return } source $testdir/malloc_common.tcl # The setup is a database with UTF-16 encoding that contains a single # large string. We will be running lots of queries against this # database. Because we will be extracting the string as UTF-8, there # is a type conversion that occurs and thus an opportunity for malloc() # to fail and for sqlite3_value_text() to return 0 even though # sqlite3_value_type() returns SQLITE_TEXT. # do_malloc_test malloc8-1 -sqlprep { PRAGMA encoding='UTF-16'; CREATE TABLE t1(a); INSERT INTO t1 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); } -sqlbody { SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1; } do_malloc_test malloc8-2 -sqlprep { PRAGMA encoding='UTF-16'; CREATE TABLE t1(a); INSERT INTO t1 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); } -sqlbody { SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a) FROM t1; } do_malloc_test malloc8-3 -sqlprep { PRAGMA encoding='UTF-16'; CREATE TABLE t1(a); INSERT INTO t1 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); } -sqlbody { SELECT length(a), substr(a, 4, 4) FROM t1; } ifcapable datetime { do_malloc_test malloc8-4 -sqlprep { PRAGMA encoding='UTF-16'; CREATE TABLE t1(a); INSERT INTO t1 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); } -sqlbody { SELECT julianday(a,a) FROM t1; } } do_malloc_test malloc8-5 -sqlprep { PRAGMA encoding='UTF-16'; CREATE TABLE t1(a); INSERT INTO t1 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); } -sqlbody { SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL; } do_malloc_test malloc8-6 -sqlprep { PRAGMA encoding='UTF-16'; CREATE TABLE t1(a); INSERT INTO t1 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); } -sqlbody { SELECT hex(randomblob(100)); } # Ensure that no file descriptors were leaked. do_test malloc-99.X { catch {db close} set sqlite_open_file_count } {0} finish_test