1use warnings;
2use strict;
3
4BEGIN {
5    chdir 't' if -d 't';
6    @INC = '../lib';
7    require './test.pl';
8    plan(tests => 4);
9}
10
11use overload '""' => sub { 'stringvalue' }, fallback => 1;
12
13BEGIN {
14my $x = bless {}, 'main';
15ok ($x eq 'stringvalue', 'fallback worked');
16}
17
18
19# NOTE: delete the next line and this test script will pass
20use overload '+' => sub { die "unused"; };
21
22my $x = bless {}, 'main';
23ok (eval {$x eq 'stringvalue'}, 'fallback worked again');
24
25TODO: {
26  local $::TODO = 'RT #43356: Autogeneration of ++ is incorrect';
27  fresh_perl_is(<<'EOC', '2', {}, 'RT #43356: Autogeneration of ++');
28use overload
29    "0+"     => sub { ${$_[0]} },
30    "="      => sub { ${$_[0]} },
31    fallback => 1;
32my $value = bless \(my $dummy = 1), __PACKAGE__;
33print ++$value;
34EOC
35}
36
37{
38    my $warned = 0;
39    local $SIG{__WARN__} = sub { $warned++; };
40
41    eval q{
42        use overload '${}', 'fallback';
43        no overload '${}', 'fallback';
44    };
45
46    ok($warned == 0, 'no overload should not warn');
47}
48
49