/usr/share/doc/perl-Test-Simple/t/Legacy
Edit: /usr/share/doc/perl-Test-Simple/t/Legacy/overload.t (2181B)
#!/usr/bin/perl -w
BEGIN {
if( $ENV{PERL_CORE} ) {
chdir 't';
@INC = ('../lib', 'lib');
}
else {
unshift @INC, 't/lib';
}
}
use strict;
use Test::More tests => 19;
package Overloaded;
use overload
q{eq} => sub { $_[0]->{string} eq $_[1] },
q{==} => sub { $_[0]->{num} == $_[1] },
q{""} => sub { $_[0]->{stringify}++; $_[0]->{string} },
q{0+} => sub { $_[0]->{numify}++; $_[0]->{num} }
;
sub new {
my $class = shift;
bless {
string => shift,
num => shift,
stringify => 0,
numify => 0,
}, $class;
}
package main;
local $SIG{__DIE__} = sub {
my($call_file, $call_line) = (caller)[1,2];
fail("SIGDIE accidentally called");
diag("From $call_file at $call_line");
};
my $obj = Overloaded->new('foo', 42);
isa_ok $obj, 'Overloaded';
cmp_ok $obj, 'eq', 'foo', 'cmp_ok() eq';
is $obj->{stringify}, 0, ' does not stringify';
is $obj, 'foo', 'is() with string overloading';
cmp_ok $obj, '==', 42, 'cmp_ok() with number overloading';
is $obj->{numify}, 0, ' does not numify';
is_deeply [$obj], ['foo'], 'is_deeply with string overloading';
ok eq_array([$obj], ['foo']), 'eq_array ...';
ok eq_hash({foo => $obj}, {foo => 'foo'}), 'eq_hash ...';
# rt.cpan.org 13506
is_deeply $obj, 'foo', 'is_deeply with string overloading at the top';
Test::More->builder->is_num($obj, 42);
Test::More->builder->is_eq ($obj, "foo");
{
# rt.cpan.org 14675
package TestPackage;
use overload q{""} => sub { ::fail("This should not be called") };
package Foo;
::is_deeply(['TestPackage'], ['TestPackage']);
::is_deeply({'TestPackage' => 'TestPackage'},
{'TestPackage' => 'TestPackage'});
::is_deeply('TestPackage', 'TestPackage');
}
# Make sure 0 isn't a special case. [rt.cpan.org 41109]
{
my $obj = Overloaded->new('0', 42);
isa_ok $obj, 'Overloaded';
cmp_ok $obj, 'eq', '0', 'cmp_ok() eq';
is $obj->{stringify}, 0, ' does not stringify';
is $obj, '0', 'is() with string overloading';
}