1Type::Tiny::Manual::UsiUnsgeWritChoTnetsrtiMbourtee(d3T)Pyeprel::DToicnuym:e:nMtaantuiaoln::UsingWithTestMore(3)
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NAME

6       Type::Tiny::Manual::UsingWithTestMore - Type::Tiny for test suites
7

MANUAL

9   Test::TypeTiny
10       This is a module for testing that types you've defined accept and
11       reject the values you think they should.
12
13        should_pass($value, $type);
14        should_fail($othervalue, $type);
15
16       Easy. (But yeah, I always forget whether the type goes first or
17       second!)
18
19       There's also a function to test that subtype/supertype relationships
20       are working okay.
21
22        ok_subtype($type, @subtypes);
23
24       Of course you can just check a type like this:
25
26        ok( $type->check($value) );
27
28       But the advantage of "should_pass" is that if the "EXTENDED_TESTING"
29       environment variable is set to true, "should_pass" will also perform a
30       strict check on the value, which involves climbing up the type's
31       inheritance tree (its parent, its parent's parent, etc) to make sure
32       the value passes all their constraints.
33
34       If a normal check and strict check differ, this is usually a problem in
35       the inlining code somewhere.
36
37       See Test::TypeTiny for more information.
38
39   Type::Tiny as a Replacement for Test::Deep
40       Here's one of the examples from the Test::Deep documentation:
41
42        my $name_re = re('^(Mr|Mrs|Miss) \w+ \w+$');
43        cmp_deeply(
44          $person,
45          {
46            Name       => $name_re,
47            Phone      => re('^0d{6}$'),
48            ChildNames => array_each($name_re)
49          },
50          "person ok"
51        );
52
53       It's pretty easy to rewrite this to use Types::Standard:
54
55        my $name = StrMatch[ qr/^(Mr|Mrs|Miss) \w+ \w+$/ ];
56        should_pass(
57          $person,
58          Dict[
59            Name         => $name,
60            Phone        => StrMatch[ qr/^0d{6}$/ ],
61            ChildNames   => ArrayRef[$name]
62          ]
63        );
64
65       There's nothing especially wrong with Test::Deep, but if you're already
66       familiar with Type::Tiny's built-in types and you've maybe written your
67       own type libraries too, it will save you having to switch between using
68       two separate systems of checks.
69

NEXT STEPS

71       Here's your next step:
72
73       •   Type::Tiny::Manual::Params
74
75           Advanced information on Type::Params, and using Type::Tiny with
76           other signature modules like Function::Parameters and Kavorka.
77

AUTHOR

79       Toby Inkster <tobyink@cpan.org>.
80

82       This software is copyright (c) 2013-2014, 2017-2021 by Toby Inkster.
83
84       This is free software; you can redistribute it and/or modify it under
85       the same terms as the Perl 5 programming language system itself.
86

DISCLAIMER OF WARRANTIES

88       THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
89       WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
90       MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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94perl v5.32.1                      2021-T0y4p-e2:7:Tiny::Manual::UsingWithTestMore(3)
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