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|
#!perl -w
use strict;
use warnings FATAL => 'all';
use Test::More;
use Data::Clone;
{
package MyBase;
sub new {
my $class = shift;
return bless {@_}, $class;
}
package MyNoclonable;
our @ISA = qw(MyBase);
package MyClonable;
use Data::Clone;
our @ISA = qw(MyBase);
package MyCustomClonable;
use Data::Clone qw(data_clone);
our @ISA = qw(MyBase);
sub clone {
my $cloned = data_clone(@_);
$cloned->{bar} = 42;
return $cloned;
}
package FatalClonable;
our @ISA = qw(MyBase);
sub clone {
die 'FATAL';
}
}
for(1 .. 2){ # do it twice to test internal data
note($_);
my($o, $c);
$o = MyNoclonable->new(foo => 10);
eval {
local $Data::Clone::ObjectCallback = sub{ die 'Non-clonable object' };
$c = clone($o);
};
like $@, qr/Non-clonable object/, 'die on non-clonables';
is $c, undef;
eval {
$c = clone($o);
};
is $@, '';
is $c, $o;
$c->{foo}++;
is $o->{foo}, 11, 'noclonable with surface copy';
$o = MyClonable->new(foo => 10);
$c = clone($o);
isnt $c, $o;
$c->{foo}++;
is $o->{foo}, 10, 'clonable';
$o = MyCustomClonable->new(foo => 10);
$c = clone($o);
isnt $c, $o;
$c->{foo}++;
is $o->{foo}, 10, 'clonable';
is_deeply $c, { foo => 11, bar => 42 }, 'custom clone()';
$o = MyClonable->new(
aaa => [[42], MyCustomClonable->new(value => 100)],
bbb => [[42], MyCustomClonable->new(value => 200)],
);
$c = clone($o);
$c->{aaa}[1]{value}++;
$c->{bbb}[1]{value}++;
is $o->{aaa}[1]{value}, 100, 'clone() is reentrant';
is $c->{aaa}[1]{value}, 101;
is $c->{aaa}[1]{bar}, 42;
is $o->{bbb}[1]{value}, 200, 'clone() is reentrant';
is $c->{bbb}[1]{value}, 201;
is $c->{bbb}[1]{bar}, 42;
$o = MyCustomClonable->new();
$o->{ccc} = [MyCustomClonable->new(value => 300)];
$o->{ddd} = $o->{ccc};
$c = clone($o);
$c->{ccc}[0]{value}++;
$c->{ddd}[0]{value}++;
is $o->{ccc}[0]{value}, 300;
is $c->{ccc}[0]{value}, 302;
is $c->{ccc}[0]{bar}, 42, 'clone methods in clone()';
$o = FatalClonable->new(foo => 10);
eval{
clone($o);
};
like $@, qr/^FATAL \b/xms, 'FATAL in clone()';
is $o->{foo}, 10;
$o = MyCustomClonable->new(value => FatalClonable->new(foo => 10));
eval{
clone($o);
};
like $@, qr/^FATAL \b/xms, 'FATAL in clone()';
is $o->{value}{foo}, 10;
}
done_testing;
|
