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=pod
=encoding utf-8
=head1 PURPOSE
Test C<compile_named> supports parameter aliases.
=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 Test::More;
use Test::Fatal;
use Types::Standard -types;
use Type::Params qw( compile_named_oo );
{
        my $check;
        sub adder {
                $check ||= compile_named_oo(
                        first_number   => Int, { alias => [ 'x' ] },
                        second_number  => Int, { alias =>   'y'   },
                );
                my ( $arg ) = &$check;
                my $sum = $arg->first_number + $arg->second_number;
                wantarray ? ( $sum, $arg ) : $sum;
        }
}
is( adder( first_number => 40, second_number => 2 ), 42, 'real args' );
is( adder( x => 40, y => 3 ), 43, 'aliases for args' );
is( adder( first_number => 40, y => 4 ), 44, 'mixed 1' );
is( adder( x => 40, second_number => 5 ), 45, 'mixed 2' );
is( adder( { x => 60, y => 3 } ), 63, 'hashref' );
my $e1 = exception{
        adder( { first_number => 40, x => 41, y => 2 } );
};
like $e1, qr/Superfluous alias "x" for argument "first_number"/, 'error';
my ( $sum, $arg ) = adder( x => 1, y => 2 );
is_deeply(
        [ grep !/caller/, sort keys %$arg ],
        [ 'first_number', 'second_number' ],
        'correct hash keys in $arg',
);
can_ok( $arg, 'first_number', 'second_number' );
ok !$arg->can( 'x' ), 'no method "x"';
ok !$arg->can( 'y' ), 'no method "y"';
done_testing;