NAME

Test::TypeTiny - useful functions for testing the efficacy of type constraints

SYNOPSIS

use strict;
use warnings;
use Test::More;
use Test::TypeTiny;

use Types::Mine qw(Integer Number);

should_pass(1, Integer);
should_pass(-1, Integer);
should_pass(0, Integer);
should_fail(2.5, Integer);

ok_subtype(Number, Integer);

done_testing;

STATUS

This module is covered by the Type-Tiny stability policy.

DESCRIPTION

Test::TypeTiny provides a few handy functions for testing type constraints.

Functions

should_pass($value, $type, $test_name)

should_pass($value, $type)

Test that passes iff $value passes $type->check.

should_fail($value, $type, $test_name)

should_fail($value, $type)

Test that passes iff $value fails $type->check.

ok_subtype($type, @subtypes)

Test that passes iff all @subtypes are subtypes of $type.

EXTENDED_TESTING

Exportable boolean constant.

matchfor(@things)

Assistant for matching exceptions. Not exported by default. See also Test::Fatal::matchfor.

ENVIRONMENT

If the EXTENDED_TESTING environment variable is set to true, this module will promote each should_pass or should_fail test into a subtest block and test the type constraint in both an inlined and non-inlined manner.

This variable must be set at compile time (i.e. before this module is loaded).

BUGS

Please report any bugs to https://github.com/tobyink/p5-type-tiny/issues.

SEE ALSO

Type::Tiny.

For an alternative to should_pass, see Test::Deep::Type which will happily accept a Type::Tiny type constraint instead of a MooseX::Types one.

AUTHOR

Toby Inkster <tobyink@cpan.org>.

COPYRIGHT AND LICENCE

This software is copyright (c) 2013-2014, 2017-2022 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.

DISCLAIMER OF WARRANTIES

THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.