Test::Signature(3pm)

1Test::Signature(3)    User Contributed Perl Documentation   Test::Signature(3)
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NAME

6       Test::Signature - Automated SIGNATURE testing
7

SYNOPSIS

9           # This is actually the t/0-signature.t file from this distribution.
10           use Test::More tests => 1;
11           use Test::Signature;
12
13           signature_ok();
14

ABSTRACT

16       "Test::Signature" verifies that the "Module::Signature" generated
17       signature of a module is correct.
18

DESCRIPTION

20       "Module::Signature" allows you to verify that a distribution has not
21       been tampered with. "Test::Signature" lets that be tested as part of
22       the distribution's test suite.
23
24       By default, if "Module::Signature" is not installed then it will just
25       say so and not fail the test. That can be overridden though.
26
27       IMPORTANT: This is not a substitute for the users verifying the
28       distribution themselves. By the time this module is run, the users will
29       have already run your Makefile.PL or Build.PL scripts which could have
30       been compromised.
31
32       This module is more for ensuring you've updated your signature
33       appropriately before distributing, and for preventing accidental errors
34       during transmission or packaging.
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FUNCTIONS

37       "signature_ok" is exported by default. "signature_force_ok" must be
38       explicitly exported.
39
40   signature_ok()
41       This will test that the "Module::Signature" generated signature is
42       valid for the distribution. It can be given two optional parameters.
43       The first is a name for the test. The default is "Valid signature".
44       The second is whether a lack of "Module::Signature" should be regarded
45       as a failure. The default is 0 meaning 'no'.
46
47           # Test with defaults
48           signature_ok()
49           # Test with custom name
50           signature_ok( "Is the signature valid?" );
51           # Test with custom name and force C<Module::Signature> to exist
52           signature_ok( "Is the signature valid?", 1 );
53           # Test without custom name, but forcing
54           signature_ok( undef, 1 );
55
56   signature_force_ok()
57       This is equivalent to calling "signature_ok( $name, 1 )" but is more
58       readable.
59
60           # These are equivalent:
61           signature_force_ok( "Is our signature valid?" );
62           signature_ok( "Is our signature valid?", 1);
63
64           # These are equivalent:
65           signature_force_ok();
66           signature_ok( undef, 1 );
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NOTES ON USE

69   MANIFEST and MANIFEST.SKIP
70       It is imperative that your MANIFEST and MANIFEST.SKIP files be accurate
71       and complete. If you are using "ExtUtils::MakeMaker" and you do not
72       have a MANIFEST.SKIP file, then don't worry about the rest of this. If
73       you do have a MANIFEST.SKIP file, or you use "Module::Build", you must
74       read this.
75
76       Since the test is run at "make test" time, the distribution has been
77       made. Thus your MANIFEST.SKIP file should have the entries listed
78       below.
79
80       If you're using "ExtUtils::MakeMaker", you should have, at least:
81
82           #defaults
83           ^Makefile$
84           ^blib/
85           ^blibdirs$
86           ^pm_to_blib$
87
88       These entries are part of the default set provided by
89       "ExtUtils::Manifest", which is ignored if you provide your own
90       MANIFEST.SKIP file.
91
92       If you are using "Module::Build", there is no default MANIFEST.SKIP so
93       you must provide your own. It must, minimally, contain:
94
95           ^Build$
96           ^Makefile$
97           ^_build/
98           ^blib/
99
100       If you don't have the correct entries, "Module::Signature" will
101       complain that you have:
102
103           ==> MISMATCHED content between MANIFEST and distribution files! <==
104
105       You should note this during normal development testing anyway.
106
107   Use with Test::Prereq
108       "Test::Prereq" tends to get a bit particular about modules.  If you're
109       using the force option with "Test::Signature" then you will have to
110       specify that you expect "Module::Signature" as a prerequisite.
111       "Test::Signature" will not have it as a prerequisite since that would
112       defeat the point of having the force variant.
113
114       If you are using "ExtUtils::MakeMaker" you should have a line like the
115       following in your Makefile.PL:
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117           'PREREQ_PM' => {
118               'Test::Signature'   => '1.04',
119               'Module::Signature' => '0.22',
120               'Test::More'        => '0.47',
121           },
122
123       If using "Module::Build", your Build.PL should have:
124
125           build_requires => {
126               'Test::Signature'   => '1.04',
127               'Module::Signature' => '0.22',
128               'Test::More'        => '0.47',
129           },
130
131       If you just want the default behaviour of testing the signature if and
132       only if the user already has "Module::Signature" installed, then you
133       will need something like the following code. The example uses
134       "Module::Build" format but it should be trivial for you to translate to
135       "ExtUtils::MakeMaker".
136
137           #!/usr/bin/perl -w
138           use strict;
139           use Module::Build 0.18;
140
141           my @extra_build;
142
143           eval { require Module::Signature };
144           if (!$@ or $Test::Prereq::VERSION)
145           {
146               push @extra_build, "Module::Signature" => '0.22'
147           }
148
149           my $m = Module::Build->new(
150               dist_name => 'WWW-Yahoo-Groups',
151               dist_version => '1.7.7',
152               license => 'perl',
153
154               requires => {
155                   # various modules
156                   'perl'             => '5.6.0',
157               },
158               build_requires => {
159                   'Test::More'          => 0.47,
160                   'Test::Prereq'        => 0.19,
161                   'Test::Prereq::Build' => 0.04,
162                   'Test::Signature'     => 1.04,
163                   @extra_build,
164               },
165           );
166
167           $m->create_build_script;
168
169       If you have any questions on using this module with "Test::Prereq",
170       just email me (address below).
171
172   Use with Module::Install
173       "Module::Install" is a module to assist in the bundling of build
174       prerequisite modules in packages. Well, among other things.
175
176       "Test::Signature" is a perfect candidate for such a module. As it's a
177       module aimed purely at those writing modules rather than those using
178       them.
179
180       Here's a good way to use it:
181
182       Make a test file (say, t/00sig.t) that contains the following:
183
184           use lib 'inc';
185           use Test::More tests => 1;
186           use Test::Signature;
187           signature_ok();
188
189       In your Makefile.PL (or Build.PL if appropriate) add:
190
191           include 'Test::Signature';
192
193       And that's it! You don't have to specify it as a prerequisite or
194       anything like that because "Module::Install" will include it in your
195       distribution. And you don't have to worry about size because
196       "Module::Install" strips out all this waffling POD.
197

THANKS

199       Arthur Bergman for suggesting the module.
200
201       Audrey Tang for writing Module::Signature, and making some suggestions.
202
203       Tels suggested testing network connectivity to Audrey; Audrey added
204       that to "Module::Signature" 0.16 and I (Iain Truskett) added it to this
205       module (as of 1.03).
206

BUGS

208       Please report bugs at <bug-test-signature@rt.cpan.org> or via the web
209       interface at <http://rt.cpan.org>
210

AUTHORS

212       Audrey Tang <cpan@audreyt.org> Original author: Iain Truskett
213       <spoon@cpan.org>, now passed away.
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LICENSE AND COPYRIGHT

216       Copyright 2002, 2003 by Iain Truskett.  Copyright 2003, 2007 by Audrey
217       Tang <cpan@audreyt.org>.
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219       This library is free software; you can redistribute it and/or modify it
220       under the same terms as Perl itself.
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