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TOBYINK / Type-Tiny-2.007_003 / t / 20-modules / Type-Params / v2-named-backcompat.t 

            

              
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=pod
=encoding utf-8
=head1 PURPOSE
Named parameter tests for modern Type::Params v2 API on Perl 5.8.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2022-2025 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 Test::More;
use Test::Fatal;
BEGIN {
        package Local::MyPackage;
         
        use strict;
        use warnings;
         
        use Types::Standard -types;
        use Type::Params -sigs;
         
        signature_for myfunc => (
                method => Object | Str,
                named  => [ arr => ArrayRef, int => Int ],
        );
         
        sub myfunc {
                my ( $self, $arg ) = @_;
                return $arg->arr->[ $arg->int ];
        }
         
        my $signature;
        sub myfunc2 {
                $signature ||= signature(
                        method => 1,
                        named  => [ arr => ArrayRef, int => Int ],
                );
                my ( $self, $arg ) = &$signature;
                 
                return $arg->arr->[ $arg->int ];
        }
};
my $o   = bless {} => 'Local::MyPackage';
my @arr = ( 'a' .. 'z' );
is $o->myfunc( arr => \@arr, int => 2 ),  'c', 'myfunc (happy path)';
is $o->myfunc2( arr => \@arr, int => 4 ), 'e', 'myfunc2 (happy path)';
{
        my $e = exception {
                $o->myfunc( arr => \@arr, int => undef );
        };
        like $e, qr/Undef did not pass type constraint "Int"/, 'myfunc (type exception)'
}
{
        my $e = exception {
                $o->myfunc2( arr => \@arr, int => undef );
        };
        like $e, qr/Undef did not pass type constraint "Int"/, 'myfunc2 (type exception)'
}
{
        my $e = exception {
                $o->myfunc( arr => \@arr, int => 6, 'debug' );
        };
        like $e, qr/Wrong number of parameters/, 'myfunc (param count exception)'
}
{
        my $e = exception {
                $o->myfunc2( arr => \@arr, int => 8, 'debug' );
        };
        like $e, qr/Wrong number of parameters/, 'myfunc2 (param count exception)'
}
done_testing;