VERSION

version 0.005

SYNOPSIS

use Test::More;
use Test::Deep;
use Test::Deep::UnorderedPairs;
cmp_deeply(
{
inventory => [
pear => 6,
peach => 5,
apple => 1,
],
},
{
inventory => unordered_pairs(
apple => 1,
peach => ignore,
pear => 6,
),
},
'got the right inventory',
);

DESCRIPTION

This module provides the sub "unordered_pairs" (and "tuples", "samehash", as synonyms) to indicate the data being tested is a list of pairs that should be tested where the order of the pairs is insignificant.

This is useful when testing a function that returns a list of hash elements as an arrayref, not a hashref. One such application might be testing PSGI headers, which are passed around as an arrayref:

    my $response = [
        '200',
        [
            'Content-Length' => '12',
            'Content-Type' => 'text/plain',
        ],
        [ 'hello world!' ],
    ];
    # this test passes
    cmp_deeply(
        $response,
        [
            '200',
            unordered_pairs(
                'Content-Type' => 'text/plain',
                'Content-Length' => '12',
            ],
            [ 'hello world!' ],
        ],
        'check headers as an arrayref of unordered pairs',
    );

FUNCTIONS

unordered_pairs

Pass an (even-numbered) list of items to test

tuples, samehash

"tuples" and "samehash" are aliases for "unordered_pairs". I'm open to more names as well; I'm not quite yet sure what the best nomenclature should be.

(Be aware that ""samehash"" is a bit of a misnomer, since if a key is repeated, the comparison is not equivalent to comparing as a hash.)

SUPPORT

Bugs may be submitted through the RT bug tracker <https://rt.cpan.org/Public/Dist/Display.html?Name=Test-Deep-UnorderedPairs> (or [email protected] <mailto:[email protected]>). I am also usually active on irc, as 'ether' at "irc.perl.org".

ACKNOWLEDGEMENTS

Ricardo Signes, for maintaining Test::Deep and for being the first consumer of this module, in Router::Dumb.

AUTHOR

Karen Etheridge <[email protected]>

COPYRIGHT AND LICENSE

This software is copyright (c) 2013 by Karen Etheridge.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.