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|
=pod
=encoding utf-8
=head1 PURPOSE
Test that Type::Tie works with a home-made type constraint system
conforming to L<Type::API>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014, 2018-2019, 2022-2023 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;
use Type::Tie;
use constant Int => do {
package Local::Type::Int;
sub DOES {
return 1 if $_[1] eq "Type::API::Constraint";
return 1 if $_[1] eq "Type::API::Constraint::Coercible";
shift->SUPER::DOES(@_);
}
sub check {
defined($_[1]) && $_[1] =~ /\A-?[0-9]+\z/;
}
sub get_message {
defined($_[1])
? "Value \"$_[1]\" does not meet type constraint Int"
: "Undef does not meet type constraint Int"
}
my $x;
bless \$x;
};
use constant Rounded => do {
package Local::Type::Rounded;
our @ISA = 'Local::Type::Int';
sub has_coercion {
1;
}
sub coerce {
defined($_[1]) && !ref($_[1]) && $_[1] =~ /\A[Ee0-9.-]+\z/
? int($_[1])
: $_[1];
}
my $x;
bless \$x;
};
ttie my $count, Rounded, 0;
$count++; is($count, 1);
$count = 2; is($count, 2);
$count = 3.14159; is($count, 3);
like(
exception { $count = "Monkey!" },
qr{^Value "Monkey!" does not meet type constraint Int},
);
ttie my @numbers, Rounded, 1, 2, 3.14159;
unshift @numbers, 0.1;
$numbers[4] = 4.4;
push @numbers, scalar @numbers;
is_deeply(
\@numbers,
[ 0..5 ],
);
like(
exception { push @numbers, 1, 2.2, 3, "Bad", 4 },
qr{^Value "Bad" does not meet type constraint Int},
);
like(
exception { unshift @numbers, 1, 2.2, 3, "Bad", 4 },
qr{^Value "Bad" does not meet type constraint Int},
);
like(
exception { $numbers[2] .= "Bad" },
qr{^Value "2Bad" does not meet type constraint Int},
);
is_deeply(
\@numbers,
[ 0..5 ],
);
ttie my %stuff, Int, foo => 1;
$stuff{bar} = 2;
is_deeply(
\%stuff,
{ foo => 1, bar => 2 },
);
like(
exception { $stuff{baz} = undef },
qr{^Undef does not meet type constraint Int},
);
delete $stuff{bar};
is_deeply(
\%stuff,
{ foo => 1 },
);
done_testing;
|
