# # 2007 May 10 # # 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 tests malloc failures in concert with fuzzy SQL generation. # # $Id: fuzz_malloc.test,v 1.4 2007/06/15 17:03:15 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Only run these tests if memory debugging is turned on. # if {[info command sqlite_malloc_stat]==""} { puts "Skipping fuzz_malloc tests: not compiled with -DSQLITE_MEMDEBUG=1" finish_test return } source $testdir/fuzz_common.tcl source $testdir/malloc_common.tcl set ::REPEATS 40 # # Usage: do_fuzzy_malloc_test ?? # # -template # -sqlprep # -repeats # proc do_fuzzy_malloc_test {testname args} { set ::fuzzyopts(-repeats) $::REPEATS set ::fuzzyopts(-sqlprep) {} array set ::fuzzyopts $args sqlite_malloc_fail 0 db close file delete test.db test.db-journal sqlite3 db test.db set ::prep $::fuzzyopts(-sqlprep) execsql $::prep set jj 0 for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} { expr srand($jj) incr jj set ::sql [subst $::fuzzyopts(-template)] foreach {rc res} [catchsql "$::sql"] {} if {$rc==0} { do_malloc_test $testname-$ii -sqlbody $::sql -sqlprep $::prep } else { incr ii -1 } } } #---------------------------------------------------------------- # Test malloc failure during parsing (and execution) of a fuzzily # generated expressions. # do_fuzzy_malloc_test fuzzy_malloc-1 -template {Select [Expr]} do_fuzzy_malloc_test fuzzy_malloc-2 -template {[Select]} set ::SQLPREP { BEGIN; CREATE TABLE abc(a, b, c); CREATE TABLE def(a, b, c); CREATE TABLE ghi(a, b, c); INSERT INTO abc VALUES(1.5, 3, 'a short string'); INSERT INTO def VALUES(NULL, X'ABCDEF', 'a longer string. Long enough that it doesn''t fit in Mem.zShort'); INSERT INTO ghi VALUES(zeroblob(1000), 'hello world', -1257900987654321); COMMIT; } set ::TableList [list abc def ghi] set ::ColumnList [list a b c] do_fuzzy_malloc_test fuzzy_malloc-3 \ -template {[Select]} \ -sqlprep $::SQLPREP sqlite_malloc_fail 0 finish_test