1#!/usr/bin/perl -w
2
3BEGIN {
4    if( $ENV{PERL_CORE} ) {
5        chdir 't';
6        @INC = ('../lib', 'lib');
7    }
8    else {
9        unshift @INC, 't/lib';
10    }
11}
12
13use strict;
14use Test::More tests => 19;
15
16
17package Overloaded;
18
19use overload
20  q{eq}    => sub { $_[0]->{string} eq $_[1] },
21  q{==}    => sub { $_[0]->{num} == $_[1] },
22  q{""}    => sub { $_[0]->{stringify}++; $_[0]->{string} },
23  q{0+}    => sub { $_[0]->{numify}++;   $_[0]->{num}    }
24;
25
26sub new {
27    my $class = shift;
28    bless {
29        string  => shift,
30        num     => shift,
31        stringify       => 0,
32        numify          => 0,
33    }, $class;
34}
35
36
37package main;
38
39local $SIG{__DIE__} = sub {
40    my($call_file, $call_line) = (caller)[1,2];
41    fail("SIGDIE accidentally called");
42    diag("From $call_file at $call_line");
43};
44
45my $obj = Overloaded->new('foo', 42);
46isa_ok $obj, 'Overloaded';
47
48cmp_ok $obj, 'eq', 'foo',       'cmp_ok() eq';
49is $obj->{stringify}, 0,        '  does not stringify';
50is $obj, 'foo',                 'is() with string overloading';
51cmp_ok $obj, '==', 42,          'cmp_ok() with number overloading';
52is $obj->{numify}, 0,           '  does not numify';
53
54is_deeply [$obj], ['foo'],                 'is_deeply with string overloading';
55ok eq_array([$obj], ['foo']),              'eq_array ...';
56ok eq_hash({foo => $obj}, {foo => 'foo'}), 'eq_hash ...';
57
58# rt.cpan.org 13506
59is_deeply $obj, 'foo',        'is_deeply with string overloading at the top';
60
61Test::More->builder->is_num($obj, 42);
62Test::More->builder->is_eq ($obj, "foo");
63
64
65{
66    # rt.cpan.org 14675
67    package TestPackage;
68    use overload q{""} => sub { ::fail("This should not be called") };
69
70    package Foo;
71    ::is_deeply(['TestPackage'], ['TestPackage']);
72    ::is_deeply({'TestPackage' => 'TestPackage'},
73                {'TestPackage' => 'TestPackage'});
74    ::is_deeply('TestPackage', 'TestPackage');
75}
76
77
78# Make sure 0 isn't a special case. [rt.cpan.org 41109]
79{
80    my $obj = Overloaded->new('0', 42);
81    isa_ok $obj, 'Overloaded';
82
83    cmp_ok $obj, 'eq', '0',  'cmp_ok() eq';
84    is $obj->{stringify}, 0, '  does not stringify';
85    is $obj, '0',            'is() with string overloading';
86}
87