4 # The author disclaims copyright to this source code. In place of
5 # a legal notice, here is a blessing:
7 # May you do good and not evil.
8 # May you find forgiveness for yourself and forgive others.
9 # May you share freely, never taking more than you give.
11 #***********************************************************************
13 # This file tests malloc failures in concert with fuzzy SQL generation.
15 # $Id: fuzz_malloc.test,v 1.10 2008/08/20 16:35:10 drh Exp $
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
20 source $testdir/malloc_common.tcl
21 source $testdir/fuzz_common.tcl
23 if {[info exists G(isquick)]} {
25 } elseif {[info exists G(issoak)]} {
32 # Usage: do_fuzzy_malloc_test <testname> ?<options>?
38 proc do_fuzzy_malloc_test {testname args} {
39 set ::fuzzyopts(-repeats) $::REPEATS
40 set ::fuzzyopts(-sqlprep) {}
41 array set ::fuzzyopts $args
43 sqlite3_memdebug_fail -1
45 delete_file test.db test.db-journal
47 set ::prep $::fuzzyopts(-sqlprep)
50 for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} {
53 set ::sql [subst $::fuzzyopts(-template)]
54 # puts fuzyy-sql=\[$::sql\]; flush stdout
55 foreach {rc ::fmtres} [catchsql "$::sql"] {}
57 set nErr1 [set_test_counter errors]
58 do_faultsim_test $testname-$ii -faults oom* -body {
61 if {$testrc && $testresult!="datatype mismatch"} {
62 faultsim_test_result {0 {}}
65 if {[set_test_counter errors]>$nErr1} {
66 puts "Previous fuzzy-sql=\[$::sql\]"
75 #----------------------------------------------------------------
76 # Test malloc failure during parsing (and execution) of a fuzzily
77 # generated expressions.
79 do_fuzzy_malloc_test fuzzy_malloc-1 -template {Select [Expr]}
80 do_fuzzy_malloc_test fuzzy_malloc-2 -template {[Select]}
84 CREATE TABLE abc(a, b, c);
85 CREATE TABLE def(a, b, c);
86 CREATE TABLE ghi(a, b, c);
87 INSERT INTO abc VALUES(1.5, 3, 'a short string');
88 INSERT INTO def VALUES(NULL, X'ABCDEF',
89 'a longer string. Long enough that it doesn''t fit in Mem.zShort');
90 INSERT INTO ghi VALUES(zeroblob(1000), 'hello world', -1257900987654321);
93 set ::TableList [list abc def ghi]
94 set ::ColumnList [list a b c]
96 do_fuzzy_malloc_test fuzzy_malloc-3 \
97 -template {[Select]} \