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|
=pod
=encoding utf-8
=head1 PURPOSE
Tests L<Eval::TypeTiny>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
use strict;
use warnings;
use lib qw( ./lib ./t/lib ../inc ./inc );
use Test::More;
use Test::Fatal;
use Eval::TypeTiny;
my %env = (
'$foo' => do { my $x = "foo"; \$x },
'@bar' => [ "bar" ],
'%baz' => { "baz" => "1" },
);
my $source = <<'SRC';
sub {
return $foo if $_[0] eq '$foo';
return @bar if $_[0] eq '@bar';
return %baz if $_[0] eq '%baz';
return;
}
SRC
my $closure = eval_closure(source => $source, environment => \%env);
is_deeply(
[ $closure->('$foo') ],
[ 'foo' ],
'closure over scalar',
);
is_deeply(
[ $closure->('@bar') ],
[ 'bar' ],
'closure over array',
);
is_deeply(
[ $closure->('%baz') ],
[ 'baz' => 1 ],
'closure over hash',
);
my $external = 40;
my $closure2 = eval_closure(
source => 'sub { $xxx += 2 }',
environment => { '$xxx' => \$external },
alias => 1,
);
$closure2->();
is($external, 42, 'closing over variables really really really works!');
{
my $destroyed = 0;
{
package MyIndicator;
sub DESTROY { $destroyed++ }
}
{
my $number = bless \(my $foo), "MyIndicator";
$$number = 40;
my $closure = eval_closure(
source => 'sub { $$xxx += 2 }',
environment => { '$xxx' => \$number },
alias => 1,
);
$closure->();
is($$number, 42);
is($destroyed, 0);
}
is($destroyed, 1, 'closed over variables disappear on cue');
}
{
my @store;
{
package MyTie;
use Tie::Scalar ();
our @ISA = 'Tie::StdScalar';
sub STORE {
my $self = shift;
push @store, $_[0];
$self->SUPER::STORE(@_);
}
sub method_of_mine { 42 }
}
tie(my($var), 'MyTie');
$var = 1;
my $closure = eval_closure(
source => 'sub { $xxx = $_[0]; tied($xxx)->method_of_mine }',
environment => { '$xxx' => \$var },
alias => 1,
);
is($closure->(2), 42, 'can close over tied variables ... AUTOLOAD stuff');
$closure->(3);
my $nother_closure = eval_closure(
source => 'sub { tied($xxx)->can(@_) }',
environment => { '$xxx' => \$var },
alias => 1,
);
ok( $nother_closure->('method_of_mine'), '... can');
ok(!$nother_closure->('your_method'), '... !can');
is_deeply(
\@store,
[ 1 .. 3],
'... tie still works',
);
{
package OtherTie;
our @ISA = 'MyTie';
sub method_of_mine { 666 }
}
tie($var, 'OtherTie');
is($closure->(4), 666, '... can be retied');
untie($var);
my $e = exception { $closure->(5) };
like($e, qr{^Can't call method "method_of_mine" on an undefined value}, '... can be untied');
}
my $c1 = eval_closure(source => 'sub { die("BANG") }', description => 'test1');
my $e1 = exception { $c1->() };
like(
$e1,
qr{^BANG at test1 line 1},
'"description" option works',
);
my $c2 = eval_closure(source => 'sub { die("BANG") }', description => 'test2', line => 222);
my $e2 = exception { $c2->() };
like(
$e2,
qr{^BANG at test2 line 222},
'"line" option works',
);
done_testing;
|
