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=pod
=encoding utf-8
=head1 PURPOSE
Check that value constraints work.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014, 2017 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 Kavorka;
use match::simple qw(match);
fun foo (Int $x where [2,4,6,8] = 2, $y = 0) {
return $x + $y;
}
fun bar (Int $x where { match $_, [2,4,6,8] } = 4, $y = 0) {
return $x + $y;
}
fun baz ($x where { match $_, [2,4,6,8] } = 6, $y = 0) {
return $x + $y;
}
subtest "smartmatch-style value constraint" => fun
{
is(foo(), 2);
is(foo(8, 1), 9);
like(exception { foo(1.1) }, qr/^Value "?1\.1"? did not pass type constraint "?Int"?/);
like(exception { foo(111) }, qr/^\$x failed value constraint/);
done_testing;
};
subtest "block value constraint" => fun
{
is(bar(), 4);
is(bar(8, 1), 9);
like(exception { bar(1.1) }, qr/^Value "?1\.1"? did not pass type constraint "?Int"?/);
like(exception { bar(111) }, qr/^\$x failed value constraint/);
done_testing;
};
subtest "value constraint with no type constraint" => fun
{
is(baz(), 6);
is(baz(8), 8);
like(exception { baz(1.1) }, qr/^\$x failed value constraint/);
like(exception { baz(111) }, qr/^\$x failed value constraint/);
done_testing;
};
done_testing;
|
