Test::TypeTiny(3)

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, 2017-2025 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.

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.